Rank #4 in Best Heart Rate Monitors 2026: 10 Ranked, Three Spec Sheets Wrong
Polar H10 XS–S Heart Rate Sensor
Price and rating as shown on Amazon when we collected them. Both change.
The Polar H10 sits at number four in this guide. It is a chest strap heart rate sensor at £62.49, rated 4.2 out of 5 across 1,799 ratings, and its spec table gives the sensor type as "Chest Strap" — in a list where two other chest straps are labelled "Optical", this is the label that matches the object it describes.
The same listing then disagrees with itself about fit. The Item Highlight says "Fits 54–66 cm chest", while the first bullet gives the XS–S strap as 62–74 cm, with M–XXL listed at 75–115 cm and XXXL at 116–155 cm sold separately. That is two different ranges for the same strap, starting 8 cm apart. The rating is the number that stays consistent: 66% of the 1,799 ratings are five star, but 15% are one or two star. Everything on this page is taken from the Amazon listing, not from any testing we have carried out.
How those 1,799 ratings break down
An average hides its own shape. This is the spread behind the 4.2 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £62.49 |
|---|---|
| Rating | 4.2 out of 5 from 1,799 ratings |
| Rating spread | 66% five star, 11% four star, 8% three star, 4% two star, 11% one star |
| Sensor Type | Chest Strap |
| Item Highlight | Fits 54–66 cm chest, ECG/EKG accuracy, HRV tracking, Waterproof |
| Strap sizes (bullet list) | XS–S 62–74 cm; M–XXL 75–115 cm; XXXL 116–155 cm (sold separately) |
| Connectivity | Bluetooth, ANT+ or 5 kHz; supports dual Bluetooth and ANT+ connections |
| Battery Average Life | 400 hours, CR 2025 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Great chest strap heart rate monitor, I find this is far better at reliable, artifact free HRV measurement than any of the Garmin straps I have used in the past and much more comfortable too and feels like the strap will last longer. Just be aware of the strap sizes - The S size is for teeny tiny children and wouldn't even come close to fitting round me even though I'm an S t-shirt, so I had to buy the correct strap seperately.”
Verified purchase“HR band works really well and is extremely accurate along side my Garmin and it syncs wellIdeal to use for multiple sports, had this product for a number of years and haven't changed the battery yet.Priced well compared to many competitors”
What it is up against
The rivals it was ranked against in Best Heart Rate Monitors 2026: 10 Ranked, Three Spec Sheets Wrong.
Questions people ask
Which chest size does this version fit?
This is the XS–S version, given in the listing as 62–74 cm. The same listing also lists M–XXL at 75–115 cm and XXXL at 116–155 cm, sold separately.
Why does the listing show a different chest range in the Item Highlight?
It does — the Item Highlight says "Fits 54–66 cm chest" while the bullet for this XS–S strap says 62–74 cm. Both figures appear on the same Polar H10 listing.
What can the Polar H10 connect to?
The listing says Bluetooth, ANT+ or 5 kHz, to smartwatches, fitness apps such as Peloton, Strava and Nike, or gym equipment, and that it supports dual Bluetooth and ANT+ connections at the same time.
Can I use it without a phone or watch?
Yes. The listing states there is internal memory for one training session without a phone or watch.
Is the Polar H10 waterproof?
The listing describes it as waterproof up to 30 m and names swimming among the sports it suits.
How long does the battery last?
The listing gives a CR 2025 battery with an average life of 400 hours, and notes the strap should be replaced roughly every 6 months for best performance.
Comments
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