H10 vs OH1

5 of 7 tracked specs changed between 2017-08 and 2017-10; launch price moved from $79 to $89.

What changed: weight (sensor only), form, battery, connectivity, signature.

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	H102017-10	OH12017-08
Launch price	$89	$79
Weight (sensor only)	21 g	5 g
Form	Chest strap	Optical armband
Battery	Coin cell, ~400 h	up to 12 h
Connectivity	Bluetooth + ANT+ + Gymlink	Bluetooth + ANT+
Onboard memory	One session	—
Swim-proof	Yes	Yes
Signature	The reviewer benchmark strap	Polar's first armband

Battery figures are launch-day claims.

As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.