Polar H10 Heart Rate Monitor Chest Strap Review UK 2026 — Worth It?

Quick Verdict

For accurate heart rate data during exercise, no wrist-based tracker competes with a chest strap ECG monitor. The Polar H10 is the benchmark — ECG-quality accuracy, dual wireless connectivity, and compatibility with every piece of sports tech you own.

ECG Accuracy

Wrist-based optical heart rate sensors are accurate at rest and during steady-state cardio, but lag behind during intervals, HIIT, and rapid HR changes. A chest strap using electrodes reads the electrical signal of each heartbeat directly — the same principle as medical ECG. For interval training, spin classes, or zone-specific training, chest strap accuracy is essential.

Connectivity

Bluetooth and ANT+ simultaneously. Connect to your Garmin watch AND your gym's spin bike display at the same time. Zwift receives HR via ANT+, your phone receives via Bluetooth — simultaneously. This dual connectivity is the key advantage over competing straps.

Built-in Memory

Single session storage means you can swim or train without your phone and sync later. The 200-sample memory stores one complete training session in RR interval data.

Who Should Buy This?

Athletes doing HR zone training, HIIT, cycling, or swimming who need accurate data. Also used clinically for cardiac rehab — widely trusted by sports scientists and coaches.