Nr.	Heart rate monitor	Testing protocol	Accuracy (min)	Accuracy (max)	Reference consumer grade chest strap	Scientific paper
1	Apple Watch 6	not discussed in this table	> 95		Polar H10	[90.9.2]
2	Equivital EQ02+ Life Monitor	not discussed in this table	we estimate > 95		Polar H10	[90.9.4]
3	Polar OH1	not discussed in this table	95		Polar H10	[90.9.3]
4	Polar OH1	not discussed in this table	93.99		Polar H10	[90.9.1]
5	Polar Verity Sense	not discussed in this table	93.17		Polar H10	[90.9.1]
6	Polar Vantage V	not discussed in this table	91.2	97.56	Polar H10	[90.9.2]
7	Fitbit Sense	not discussed in this table	89.24	95.86	Polar H10	[90.9.2]
8	Fitbit Charge 3	not discussed in this table	80		Polar H10	[90.9.3]

• Selection of papers