reprinted from DC Rainmaker: Polar Verity Sense (Optical HR Sensor Band) In-Depth Review:
https://www.dcrainmaker.com/2021/02/polar-verity-sense-optical-hr-sensor-band-in-depth-review.html
- vincent
February 11, 2022 at 10:06 am #244
Do you think its worth it to upgrade if I already have an OH1? The longer battery life is nice, but other than that I’m pretty happy with OH1.
- Jakob Thusgaard February 11, 2022 at 10:11 am #245 I wouldn’t upgrade if I had the OH1. Reply
February 11, 2022 at 10:53 am #246
I stay with the Polar OH1, until there is a scientific validation of the Verity Sense, which the Polar OH1 already has (it says, that the accuracy of the Polar OH1 is near to an ECG device). Polar prolounges the battery life of the Verity Sense by a firmware upgrade in a miraculous way. I also could not find any evidence, that the longer battery life of the Verity Sense is accomplished by a hardware change (larger battery) which makes it better compared to the Polar OH1, 1 or by a miraculous software update, which keeps the accuracy of the Polar OH1. Some people believe in this miraculous software update, but I do not trust it.
- DC Rainmaker February 11, 2022 at 11:10 am #247 The unit has been out for a year now. An entire internet body’s worth of people have found the accuracy of the Polar Vertiy Sense the same as the Polar OH1 series – equally as accurate. Batteries and components get more efficient over time with new versions, it doesn’t require a “larger battery” to get more battery power. This isn’t “miraculous” as you say, it’s simple technology advancements. The same advancement that lets you type this message on a phone or computer that’s smaller than a decade ago, despite being a hundred times more powerful. Reply
February 11, 2022 at 4:47 pm #248
These statements can neither be proven nor disproved for the Verity Sense by Polar outsiders.
February 11, 2022 at 11:33 pm #249
Or was the firmware update from Polar especially designed from Polar for DC Rainmaker, so that the difference to Polar OH1 cannot be seen by eye in Garmin Connect?
- DC Rainmaker February 12, 2022 at 4:35 am #250 Sorry, was there a sale on tin foil I missed? I’m running low. Reply
February 13, 2022 at 12:58 am #251
I don t know, but maybe the Verity Sense is on sale soon, when there are no clear answers from Polar. Polar strongly increased the battery life with the last firmware update of the Verity Sense. Was this accomplished by reducing the sampling rate, which reduces the accuracy?
- DC Rainmaker February 13, 2022 at 5:43 am #252 The last firmware update was last June (which included that bump in battery life). Countless people, including myself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing. In any case, you stated last spring you owned two Verity Sense devices. Have you documented any actual real-world changes yourself with the firmware last June? I mean, certainly, if you had seen issues you’d have mentioned it by now, right? Reply
- Peter Gamma February 13, 2022 at 8:56 am #253 There are two great qualitative accuracy studies by DC Rainmaker and 5K Runner where they compared the accuracy of the Polar OH1 to a chest strap in Garmin connect by eye. There are two great studies for the Verity Sense by the same authors. There are scientific studies about the Polar OH1 and the Verity Sense by Rob ter Horst on his youtube channel the «The Quantified Scientist». There are several quantitative and statistical scientific studies about the accuracy of commercially available heart rate monitors. I published a list of papers on my personal website: link to petergamma.org Ray, you say, countless people, including yourself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing after the update. This does not answer the question whether the sampling rate of the Verity Sense was reduced by Polar with that the accuracy. I did not do any accuracy testing yet. I could not find any quantitative and statistical papers about the accuracy of the Verity Sense before or after the update by Polar yet. Choose the product which fits best for your needs yourself. Reply
- DC Rainmaker February 13, 2022 at 9:05 am #254 What is your precise definition of “sampling rate”? Reply
- Peter Gamma February 14, 2022 at 2:42 am #255 The number of heart rate measurements or data points in a unit of time. Reply
- DC Rainmaker February 14, 2022 at 4:28 am #256 Then, in that case, you already know the answer. The Polar Verity Sense transmits once per second, just as it did before with the OH1. As myself and others have demonstrated, there’s been no change in the accuracy of the unit pre and post-June firmware. You can also validate this yourself within a few seconds. Again, I ask, given you have two of these – have you actually seen any differences, and if so, have you documented them? Finally, I don’t know what you’re referring to regarding Garmin Connect here. Nobody is using Garmin Connect to do anything here (related to accuracy or otherwise). Reply
February 14, 2022 at 6:50 pm #257
The Polar Verity Sense transmits once per second, as you say. But this does not mean, that eventually the underying transmission has changed. Polar has doubled the battery life of the Verity Sense by a firmware update. Without changing the sampling rate? Is this a physical miracle? Or has Polar developed new algorythms for which the can apply for the next Nobel Price? I cannot imagine another way than reducing the sampling rate to do this, which causes a reduction of accuracy. You say you saw zero difference in Garmin Connect. An Australian research group has demonstrated, that the Polar OH1 is a high-quality sensor, which can be used instead of research grade ECG device. The paper is on the link I have posted. But when Polar reduces the sampling rate of the sensor (eventually in a hidden way), this could mean that the value of this sensor is strongly reduced, and eventually cannot be used for high-quality research applications anymore, but only for data analysis in Garmin Connect. I currently don t have the time nor the equipment to do a high-quality research grade test. That’s not the job of a physiologist like I am anyway. There are other people who can do this better than me.
- DC Rainmaker February 14, 2022 at 7:11 pm #258 Yeah, I don’t know what to say at this point. I think I’ve tried to explain, repeatedly, that optimizations in algorithms are everyday things in technology, and have been for decades on every device you use. It’s not just about optical sensors, it’s also about communications chipsets by 3rd party vendors, ways things write memory, how long the unit takes to go into standby mode, the power draw for communications chipsets, and countless other components. There’s nothing Nobel-prize-winning about any of this. This happens every single day by almost every single company in computing: Code and component optimizations. Every day of the week, companies spend time doing this. At this point, it seems you’re very set on making up problems/issues that simply don’t exist, with no evidence that it exists (as in, not even a single tiny line-item of evidence). All for reasons I frankly don’t understand. And that’s fine if that’s what you want to do on the internet. The problem is, I have to keep spending time refuting this (on this post and others here), because someone will invariably come along and think you’re talking sense – when you’re not. I’ve just gotten tired of your misinformation here. (Also, again, I have no idea why you keep saying “Garmin Connect” in this conversation – nobody, absolutely nobody, has mentioned, invoked, substantiated, considered, employed, utilized, beaten, or otherwise discussed it in the context of the Verity Sense or any other Polar product, here – least of all, me.) Reply
- Peter Gamma February 15, 2022 at 9:56 pm #259 There have already been published three scientific validation papers about the accuracy of the Polar OH1. I have published the list of publications on my personal website: link to petergamma.org I could not find a scientific validation paper for the Verity Sense yet. For research applications, use the Polar OH1 instead of the Verity Sense. There are more accuracy data available for this sensor. Scientific accuracy studies are time consuming. Polar, keep selling the Polar OH1. High scools, universities and research institutions are grateful for that. Source: DC Rainmaker: Polar Verity Sense (Optical HR Sensor Band) In-Depth Review https://www.dcrainmaker.com/2021/02/polar-verity-sense-optical-hr-sensor-band-in-depth-review.html 20.2.22 Me personally, until there are convincing numerical and statistical validation data about the accuracy of the Verity Sense available, I will not use the Verity Sense anymore.
- vincent
February 11, 2022 at 10:06 am #244
Do you think its worth it to upgrade if I already have an OH1? The longer battery life is nice, but other than that I’m pretty happy with OH1.
- Jakob Thusgaard February 11, 2022 at 10:11 am #245 I wouldn’t upgrade if I had the OH1. Reply
February 11, 2022 at 10:53 am #246
I stay with the Polar OH1, until there is a scientific validation of the Verity Sense, which the Polar OH1 already has (it says, that the accuracy of the Polar OH1 is near to an ECG device). Polar prolounges the battery life of the Verity Sense by a firmware upgrade in a miraculous way. I also could not find any evidence, that the longer battery life of the Verity Sense is accomplished by a hardware change (larger battery) which makes it better compared to the Polar OH1, 1 or by a miraculous software update, which keeps the accuracy of the Polar OH1. Some people believe in this miraculous software update, but I do not trust it.
- DC Rainmaker February 11, 2022 at 11:10 am #247 The unit has been out for a year now. An entire internet body’s worth of people have found the accuracy of the Polar Vertiy Sense the same as the Polar OH1 series – equally as accurate. Batteries and components get more efficient over time with new versions, it doesn’t require a “larger battery” to get more battery power. This isn’t “miraculous” as you say, it’s simple technology advancements. The same advancement that lets you type this message on a phone or computer that’s smaller than a decade ago, despite being a hundred times more powerful. Reply
February 11, 2022 at 4:47 pm #248
These statements can neither be proven nor disproved for the Verity Sense by Polar outsiders.
February 11, 2022 at 11:33 pm #249
Or was the firmware update from Polar especially designed from Polar for DC Rainmaker, so that the difference to Polar OH1 cannot be seen by eye in Garmin Connect?
- DC Rainmaker February 12, 2022 at 4:35 am #250 Sorry, was there a sale on tin foil I missed? I’m running low. Reply
February 13, 2022 at 12:58 am #251
I don t know, but maybe the Verity Sense is on sale soon, when there are no clear answers from Polar. Polar strongly increased the battery life with the last firmware update of the Verity Sense. Was this accomplished by reducing the sampling rate, which reduces the accuracy?
- DC Rainmaker February 13, 2022 at 5:43 am #252 The last firmware update was last June (which included that bump in battery life). Countless people, including myself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing. In any case, you stated last spring you owned two Verity Sense devices. Have you documented any actual real-world changes yourself with the firmware last June? I mean, certainly, if you had seen issues you’d have mentioned it by now, right? Reply
- Peter Gamma February 13, 2022 at 8:56 am #253 There are two great qualitative accuracy studies by DC Rainmaker and 5K Runner where they compared the accuracy of the Polar OH1 to a chest strap in Garmin connect by eye. There are two great studies for the Verity Sense by the same authors. There are scientific studies about the Polar OH1 and the Verity Sense by Rob ter Horst on his youtube channel the «The Quantified Scientist». There are several quantitative and statistical scientific studies about the accuracy of commercially available heart rate monitors. I published a list of papers on my personal website: link to petergamma.org Ray, you say, countless people, including yourself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing after the update. This does not answer the question whether the sampling rate of the Verity Sense was reduced by Polar with that the accuracy. I did not do any accuracy testing yet. I could not find any quantitative and statistical papers about the accuracy of the Verity Sense before or after the update by Polar yet. Choose the product which fits best for your needs yourself. Reply
- DC Rainmaker February 13, 2022 at 9:05 am #254 What is your precise definition of “sampling rate”? Reply
- Peter Gamma February 14, 2022 at 2:42 am #255 The number of heart rate measurements or data points in a unit of time. Reply
- DC Rainmaker February 14, 2022 at 4:28 am #256 Then, in that case, you already know the answer. The Polar Verity Sense transmits once per second, just as it did before with the OH1. As myself and others have demonstrated, there’s been no change in the accuracy of the unit pre and post-June firmware. You can also validate this yourself within a few seconds. Again, I ask, given you have two of these – have you actually seen any differences, and if so, have you documented them? Finally, I don’t know what you’re referring to regarding Garmin Connect here. Nobody is using Garmin Connect to do anything here (related to accuracy or otherwise). Reply
February 14, 2022 at 6:50 pm #257
The Polar Verity Sense transmits once per second, as you say. But this does not mean, that eventually the underying transmission has changed. Polar has doubled the battery life of the Verity Sense by a firmware update. Without changing the sampling rate? Is this a physical miracle? Or has Polar developed new algorythms for which the can apply for the next Nobel Price? I cannot imagine another way than reducing the sampling rate to do this, which causes a reduction of accuracy. You say you saw zero difference in Garmin Connect. An Australian research group has demonstrated, that the Polar OH1 is a high-quality sensor, which can be used instead of research grade ECG device. The paper is on the link I have posted. But when Polar reduces the sampling rate of the sensor (eventually in a hidden way), this could mean that the value of this sensor is strongly reduced, and eventually cannot be used for high-quality research applications anymore, but only for data analysis in Garmin Connect. I currently don t have the time nor the equipment to do a high-quality research grade test. That’s not the job of a physiologist like I am anyway. There are other people who can do this better than me.
- DC Rainmaker February 14, 2022 at 7:11 pm #258 Yeah, I don’t know what to say at this point. I think I’ve tried to explain, repeatedly, that optimizations in algorithms are everyday things in technology, and have been for decades on every device you use. It’s not just about optical sensors, it’s also about communications chipsets by 3rd party vendors, ways things write memory, how long the unit takes to go into standby mode, the power draw for communications chipsets, and countless other components. There’s nothing Nobel-prize-winning about any of this. This happens every single day by almost every single company in computing: Code and component optimizations. Every day of the week, companies spend time doing this. At this point, it seems you’re very set on making up problems/issues that simply don’t exist, with no evidence that it exists (as in, not even a single tiny line-item of evidence). All for reasons I frankly don’t understand. And that’s fine if that’s what you want to do on the internet. The problem is, I have to keep spending time refuting this (on this post and others here), because someone will invariably come along and think you’re talking sense – when you’re not. I’ve just gotten tired of your misinformation here. (Also, again, I have no idea why you keep saying “Garmin Connect” in this conversation – nobody, absolutely nobody, has mentioned, invoked, substantiated, considered, employed, utilized, beaten, or otherwise discussed it in the context of the Verity Sense or any other Polar product, here – least of all, me.) Reply
- Peter Gamma February 15, 2022 at 9:56 pm #259 There have already been published three scientific validation papers about the accuracy of the Polar OH1. I have published the list of publications on my personal website: link to petergamma.org I could not find a scientific validation paper for the Verity Sense yet. For research applications, use the Polar OH1 instead of the Verity Sense. There are more accuracy data available for this sensor. Scientific accuracy studies are time consuming. Polar, keep selling the Polar OH1. High scools, universities and research institutions are grateful for that. Source: DC Rainmaker: Polar Verity Sense (Optical HR Sensor Band) In-Depth Review https://www.dcrainmaker.com/2021/02/polar-verity-sense-optical-hr-sensor-band-in-depth-review.html 20.2.22 Me personally, until there are convincing numerical and statistical validation data about the accuracy of the Verity Sense available, I will not use the Verity Sense anymore.
- vincent
February 11, 2022 at 10:06 am #244
Do you think its worth it to upgrade if I already have an OH1? The longer battery life is nice, but other than that I’m pretty happy with OH1.
- Jakob Thusgaard February 11, 2022 at 10:11 am #245 I wouldn’t upgrade if I had the OH1. Reply
February 11, 2022 at 10:53 am #246
I stay with the Polar OH1, until there is a scientific validation of the Verity Sense, which the Polar OH1 already has (it says, that the accuracy of the Polar OH1 is near to an ECG device). Polar prolounges the battery life of the Verity Sense by a firmware upgrade in a miraculous way. I also could not find any evidence, that the longer battery life of the Verity Sense is accomplished by a hardware change (larger battery) which makes it better compared to the Polar OH1, 1 or by a miraculous software update, which keeps the accuracy of the Polar OH1. Some people believe in this miraculous software update, but I do not trust it.
- DC Rainmaker February 11, 2022 at 11:10 am #247 The unit has been out for a year now. An entire internet body’s worth of people have found the accuracy of the Polar Vertiy Sense the same as the Polar OH1 series – equally as accurate. Batteries and components get more efficient over time with new versions, it doesn’t require a “larger battery” to get more battery power. This isn’t “miraculous” as you say, it’s simple technology advancements. The same advancement that lets you type this message on a phone or computer that’s smaller than a decade ago, despite being a hundred times more powerful. Reply
February 11, 2022 at 4:47 pm #248
These statements can neither be proven nor disproved for the Verity Sense by Polar outsiders.
February 11, 2022 at 11:33 pm #249
Or was the firmware update from Polar especially designed from Polar for DC Rainmaker, so that the difference to Polar OH1 cannot be seen by eye in Garmin Connect?
- DC Rainmaker February 12, 2022 at 4:35 am #250 Sorry, was there a sale on tin foil I missed? I’m running low. Reply
February 13, 2022 at 12:58 am #251
I don t know, but maybe the Verity Sense is on sale soon, when there are no clear answers from Polar. Polar strongly increased the battery life with the last firmware update of the Verity Sense. Was this accomplished by reducing the sampling rate, which reduces the accuracy?
- DC Rainmaker February 13, 2022 at 5:43 am #252 The last firmware update was last June (which included that bump in battery life). Countless people, including myself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing. In any case, you stated last spring you owned two Verity Sense devices. Have you documented any actual real-world changes yourself with the firmware last June? I mean, certainly, if you had seen issues you’d have mentioned it by now, right? Reply
- Peter Gamma February 13, 2022 at 8:56 am #253 There are two great qualitative accuracy studies by DC Rainmaker and 5K Runner where they compared the accuracy of the Polar OH1 to a chest strap in Garmin connect by eye. There are two great studies for the Verity Sense by the same authors. There are scientific studies about the Polar OH1 and the Verity Sense by Rob ter Horst on his youtube channel the «The Quantified Scientist». There are several quantitative and statistical scientific studies about the accuracy of commercially available heart rate monitors. I published a list of papers on my personal website: link to petergamma.org Ray, you say, countless people, including yourself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing after the update. This does not answer the question whether the sampling rate of the Verity Sense was reduced by Polar with that the accuracy. I did not do any accuracy testing yet. I could not find any quantitative and statistical papers about the accuracy of the Verity Sense before or after the update by Polar yet. Choose the product which fits best for your needs yourself. Reply
- DC Rainmaker February 13, 2022 at 9:05 am #254 What is your precise definition of “sampling rate”? Reply
- Peter Gamma February 14, 2022 at 2:42 am #255 The number of heart rate measurements or data points in a unit of time. Reply
- DC Rainmaker February 14, 2022 at 4:28 am #256 Then, in that case, you already know the answer. The Polar Verity Sense transmits once per second, just as it did before with the OH1. As myself and others have demonstrated, there’s been no change in the accuracy of the unit pre and post-June firmware. You can also validate this yourself within a few seconds. Again, I ask, given you have two of these – have you actually seen any differences, and if so, have you documented them? Finally, I don’t know what you’re referring to regarding Garmin Connect here. Nobody is using Garmin Connect to do anything here (related to accuracy or otherwise). Reply
February 14, 2022 at 6:50 pm #257
The Polar Verity Sense transmits once per second, as you say. But this does not mean, that eventually the underying transmission has changed. Polar has doubled the battery life of the Verity Sense by a firmware update. Without changing the sampling rate? Is this a physical miracle? Or has Polar developed new algorythms for which the can apply for the next Nobel Price? I cannot imagine another way than reducing the sampling rate to do this, which causes a reduction of accuracy. You say you saw zero difference in Garmin Connect. An Australian research group has demonstrated, that the Polar OH1 is a high-quality sensor, which can be used instead of research grade ECG device. The paper is on the link I have posted. But when Polar reduces the sampling rate of the sensor (eventually in a hidden way), this could mean that the value of this sensor is strongly reduced, and eventually cannot be used for high-quality research applications anymore, but only for data analysis in Garmin Connect. I currently don t have the time nor the equipment to do a high-quality research grade test. That’s not the job of a physiologist like I am anyway. There are other people who can do this better than me.
- DC Rainmaker February 14, 2022 at 7:11 pm #258 Yeah, I don’t know what to say at this point. I think I’ve tried to explain, repeatedly, that optimizations in algorithms are everyday things in technology, and have been for decades on every device you use. It’s not just about optical sensors, it’s also about communications chipsets by 3rd party vendors, ways things write memory, how long the unit takes to go into standby mode, the power draw for communications chipsets, and countless other components. There’s nothing Nobel-prize-winning about any of this. This happens every single day by almost every single company in computing: Code and component optimizations. Every day of the week, companies spend time doing this. At this point, it seems you’re very set on making up problems/issues that simply don’t exist, with no evidence that it exists (as in, not even a single tiny line-item of evidence). All for reasons I frankly don’t understand. And that’s fine if that’s what you want to do on the internet. The problem is, I have to keep spending time refuting this (on this post and others here), because someone will invariably come along and think you’re talking sense – when you’re not. I’ve just gotten tired of your misinformation here. (Also, again, I have no idea why you keep saying “Garmin Connect” in this conversation – nobody, absolutely nobody, has mentioned, invoked, substantiated, considered, employed, utilized, beaten, or otherwise discussed it in the context of the Verity Sense or any other Polar product, here – least of all, me.) Reply
- Peter Gamma February 15, 2022 at 9:56 pm #259 There have already been published three scientific validation papers about the accuracy of the Polar OH1. I have published the list of publications on my personal website: link to petergamma.org I could not find a scientific validation paper for the Verity Sense yet. For research applications, use the Polar OH1 instead of the Verity Sense. There are more accuracy data available for this sensor. Scientific accuracy studies are time consuming. Polar, keep selling the Polar OH1. High scools, universities and research institutions are grateful for that. Source: DC Rainmaker: Polar Verity Sense (Optical HR Sensor Band) In-Depth Review https://www.dcrainmaker.com/2021/02/polar-verity-sense-optical-hr-sensor-band-in-depth-review.html 20.2.22 Me personally, until there are convincing numerical and statistical validation data about the accuracy of the Verity Sense available, I will not use the Verity Sense anymore.
- vincent
February 11, 2022 at 10:06 am #244
Do you think its worth it to upgrade if I already have an OH1? The longer battery life is nice, but other than that I’m pretty happy with OH1.
- Jakob Thusgaard February 11, 2022 at 10:11 am #245 I wouldn’t upgrade if I had the OH1. Reply
February 11, 2022 at 10:53 am #246
I stay with the Polar OH1, until there is a scientific validation of the Verity Sense, which the Polar OH1 already has (it says, that the accuracy of the Polar OH1 is near to an ECG device). Polar prolounges the battery life of the Verity Sense by a firmware upgrade in a miraculous way. I also could not find any evidence, that the longer battery life of the Verity Sense is accomplished by a hardware change (larger battery) which makes it better compared to the Polar OH1, 1 or by a miraculous software update, which keeps the accuracy of the Polar OH1. Some people believe in this miraculous software update, but I do not trust it.
- DC Rainmaker February 11, 2022 at 11:10 am #247 The unit has been out for a year now. An entire internet body’s worth of people have found the accuracy of the Polar Vertiy Sense the same as the Polar OH1 series – equally as accurate. Batteries and components get more efficient over time with new versions, it doesn’t require a “larger battery” to get more battery power. This isn’t “miraculous” as you say, it’s simple technology advancements. The same advancement that lets you type this message on a phone or computer that’s smaller than a decade ago, despite being a hundred times more powerful. Reply
February 11, 2022 at 4:47 pm #248
These statements can neither be proven nor disproved for the Verity Sense by Polar outsiders.
February 11, 2022 at 11:33 pm #249
Or was the firmware update from Polar especially designed from Polar for DC Rainmaker, so that the difference to Polar OH1 cannot be seen by eye in Garmin Connect?
- DC Rainmaker February 12, 2022 at 4:35 am #250 Sorry, was there a sale on tin foil I missed? I’m running low. Reply
February 13, 2022 at 12:58 am #251
I don t know, but maybe the Verity Sense is on sale soon, when there are no clear answers from Polar. Polar strongly increased the battery life with the last firmware update of the Verity Sense. Was this accomplished by reducing the sampling rate, which reduces the accuracy?
- DC Rainmaker February 13, 2022 at 5:43 am #252 The last firmware update was last June (which included that bump in battery life). Countless people, including myself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing. In any case, you stated last spring you owned two Verity Sense devices. Have you documented any actual real-world changes yourself with the firmware last June? I mean, certainly, if you had seen issues you’d have mentioned it by now, right? Reply
- Peter Gamma February 13, 2022 at 8:56 am #253 There are two great qualitative accuracy studies by DC Rainmaker and 5K Runner where they compared the accuracy of the Polar OH1 to a chest strap in Garmin connect by eye. There are two great studies for the Verity Sense by the same authors. There are scientific studies about the Polar OH1 and the Verity Sense by Rob ter Horst on his youtube channel the «The Quantified Scientist». There are several quantitative and statistical scientific studies about the accuracy of commercially available heart rate monitors. I published a list of papers on my personal website: link to petergamma.org Ray, you say, countless people, including yourself and many other trusted reviewers that know what they’re doing, have tested this numerous times and seen zero difference in accuracy testing after the update. This does not answer the question whether the sampling rate of the Verity Sense was reduced by Polar with that the accuracy. I did not do any accuracy testing yet. I could not find any quantitative and statistical papers about the accuracy of the Verity Sense before or after the update by Polar yet. Choose the product which fits best for your needs yourself. Reply
- DC Rainmaker February 13, 2022 at 9:05 am #254 What is your precise definition of “sampling rate”? Reply
- Peter Gamma February 14, 2022 at 2:42 am #255 The number of heart rate measurements or data points in a unit of time. Reply
- DC Rainmaker February 14, 2022 at 4:28 am #256 Then, in that case, you already know the answer. The Polar Verity Sense transmits once per second, just as it did before with the OH1. As myself and others have demonstrated, there’s been no change in the accuracy of the unit pre and post-June firmware. You can also validate this yourself within a few seconds. Again, I ask, given you have two of these – have you actually seen any differences, and if so, have you documented them? Finally, I don’t know what you’re referring to regarding Garmin Connect here. Nobody is using Garmin Connect to do anything here (related to accuracy or otherwise). Reply
February 14, 2022 at 6:50 pm #257
The Polar Verity Sense transmits once per second, as you say. But this does not mean, that eventually the underying transmission has changed. Polar has doubled the battery life of the Verity Sense by a firmware update. Without changing the sampling rate? Is this a physical miracle? Or has Polar developed new algorythms for which the can apply for the next Nobel Price? I cannot imagine another way than reducing the sampling rate to do this, which causes a reduction of accuracy. You say you saw zero difference in Garmin Connect. An Australian research group has demonstrated, that the Polar OH1 is a high-quality sensor, which can be used instead of research grade ECG device. The paper is on the link I have posted. But when Polar reduces the sampling rate of the sensor (eventually in a hidden way), this could mean that the value of this sensor is strongly reduced, and eventually cannot be used for high-quality research applications anymore, but only for data analysis in Garmin Connect. I currently don t have the time nor the equipment to do a high-quality research grade test. That’s not the job of a physiologist like I am anyway. There are other people who can do this better than me.
- DC Rainmaker February 14, 2022 at 7:11 pm #258 Yeah, I don’t know what to say at this point. I think I’ve tried to explain, repeatedly, that optimizations in algorithms are everyday things in technology, and have been for decades on every device you use. It’s not just about optical sensors, it’s also about communications chipsets by 3rd party vendors, ways things write memory, how long the unit takes to go into standby mode, the power draw for communications chipsets, and countless other components. There’s nothing Nobel-prize-winning about any of this. This happens every single day by almost every single company in computing: Code and component optimizations. Every day of the week, companies spend time doing this. At this point, it seems you’re very set on making up problems/issues that simply don’t exist, with no evidence that it exists (as in, not even a single tiny line-item of evidence). All for reasons I frankly don’t understand. And that’s fine if that’s what you want to do on the internet. The problem is, I have to keep spending time refuting this (on this post and others here), because someone will invariably come along and think you’re talking sense – when you’re not. I’ve just gotten tired of your misinformation here. (Also, again, I have no idea why you keep saying “Garmin Connect” in this conversation – nobody, absolutely nobody, has mentioned, invoked, substantiated, considered, employed, utilized, beaten, or otherwise discussed it in the context of the Verity Sense or any other Polar product, here – least of all, me.) Reply
- Peter Gamma February 15, 2022 at 9:56 pm #259 There have already been published three scientific validation papers about the accuracy of the Polar OH1. I have published the list of publications on my personal website: link to petergamma.org I could not find a scientific validation paper for the Verity Sense yet. For research applications, use the Polar OH1 instead of the Verity Sense. There are more accuracy data available for this sensor. Scientific accuracy studies are time consuming. Polar, keep selling the Polar OH1. High scools, universities and research institutions are grateful for that.
- Reprinted from DC Rainmaker: Polar Verity Sense (Optical HR Sensor Band) In-Depth Review https://www.dcrainmaker.com/2021/02/polar-verity-sense-optical-hr-sensor-band-in-depth-review.html
- 20.2.22 .
Me personally, until there are convincing numerical and statistical validation data about the accuracy of the Verity Sense available, I will not use the Verity Sense anymore.
23.3.22 17:16
I wrote in the DC Rainmaker blog, that I miss a Polar OH24 which runs more than 24 hrs. Then Polar made an update of the Verity Sensor to run it more than 24 hrs. Did Polar this, since they did not want to develop a third product Polar OH24?
A lot of question are open in meditation research. Which parameters are essential? How accurate the sensor has to be? As long as there are no validation data available, choose the sensor which is the best validated, if you can.