When will we have a new OHRM from Polar which is as accurate or more accurate than the Apple watch?

Is the construction principle of the Polar OHRMs since the Polar OH1 not superior to wrist based devices such as Apple watches? Is it not only logical that non-wrist based OHRMs should be more accurate than wrist based OHRMS? The wrist is not an optimal placement for a OHRM. Polar is an experienced developer of …