Good but not great, does the job, strap is too damn small (M-XXL size!!!)
Good quality, does the job, very accurate. However, as far as Smart Bluetooth there are better, higher value/quality offerings from Garmin, Topeak, etc.
Battery durability, regardless of brand is fairly low with the Polar H10. Don't know why that is but compared to the H1 or even the H7 durability is not as good so plan on buying the 2025 batteries more often. I do think the H10 is slightly more accurate and quicker than any other Polar HR sensor.
And then, there is the issue with the strap size, it is a medium at best. Yes, I'm a fat dude, chest size 44 in. and I wear this at max, feels very snug. On hot days when I gasp for breath it feels very restrictive. It's OK during the winter or fall.
Verified purchase: YesCondition: Pre-owned