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Best heart rate monitors to buy right now
A chest strap is still the most accurate way to track heart rate during hard intervals, because a wrist sensor lags when your effort changes fast. Pick an armband if you find straps uncomfortable; it is close behind and easier to wear.
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Best for most people
1. Polar H10
Chest strap · 30m · ECG · Bluetooth, ANT+, 5 kHz
The chest strap to buy for accurate training heart rate: ECG-based sensing, Bluetooth and ANT+ at the same time, and memory for one session without a phone. It pairs with Strava, Peloton and gym kit. Polar advises replacing the strap about every 6 months for best accuracy, so allow for that.
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Best for Garmin owners
2. Garmin HRM-200
Heart rate and HRV · Chest strap · 3ATM · Up to 1 year, replaceable
The natural pick if you already wear a Garmin watch or use a Garmin cycle computer: it sends heart rate and HRV straight to them, the battery lasts up to a year and the strap is machine washable. It comes in two strap sizes and this listing is the M-XL, so check your chest first.
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Best budget
3. CooSpo H6
Zwift, Peloton, Wahoo and more · Chest strap · Bluetooth 4.0, ANT+
A fraction of the Polar's price for the same basic job: live heart rate to your phone, watch, bike computer or gym machine over Bluetooth and ANT+. For Zwift or Peloton sessions it does what most people need. The listing makes no ECG or HRV claims, so data-heavy users should pay up for the Polar.
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Best armband
4. Polar Verity Sense
Optical armband · Upper or lower arm, goggle clip · Bluetooth (2 at once), ANT+
For anyone who hates chest straps: an optical sensor worn on the upper or lower arm, or clipped to swimming goggles. It can record a session itself and sync to your phone afterwards. Optical sensing reads from the skin rather than the heart's electrical signal, so the H10 is still the more precise choice for intervals.
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Easiest to pair
5. CooSpo IP67 Chest Strap
Chest strap · IP67 · 45g · Bluetooth 4.0, ANT+
A second budget chest strap, with LED lights and beep tones that confirm it is connected and reading, which saves guesswork at the start of a class. IP67 covers sweat and rain. The strap runs 25 to 36 inches, so smaller or larger chests need a replacement strap bought separately.
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Best rechargeable
6. Wahoo TICKR FIT
Armband · Up to 30 hours, USB rechargeable · Bluetooth, ANT+
An armband alternative to the Verity Sense with a USB-rechargeable battery and an LED that shows connection status. It works with the Wahoo app and third-party training apps. Up to 30 hours per charge means regular recharging, and it sells the least of these six in the UK.
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How we rank
Ordered by how well each sells in its Amazon UK category, what the listing confirms (fit, materials, sizes, features), and price. We have not handled these products: the write-ups rest on what each listing states. Prices and stock are checked daily.
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