# Which heart rate monitor chest straps have a long battery life? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which heart rate monitor chest straps have a long battery life?

## Products

### Polar H10
```yaml
product: polar-h10
brand: Polar
price_gbp: 59.02
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
battery_life: Up to 400 hours
compatibility: Bluetooth LE, ANT+, 5 kHz GymLink, Polar devices, Garmin, Apple, Suunto, Strava, Nike Run Club, Peloton
monitoring_range: 90 m
waterproof_rating: WR30
heart_rate_accuracy: Most accurate sensor in Polar's history
chest_strap_material: 71% polyester, 29% spandex
```

- **Price:** £59.02 [^1]
- **Summary:** The Polar H10 is an ECG chest-strap heart rate monitor with highly accurate readings, Bluetooth LE, ANT+, 5 kHz GymLink, dual Bluetooth connections, and internal memory for one training session. It suits athletes and fitness users who want reliable heart rate data across watches, gym equipment, and mobile apps.
- **Ideal For:** The Polar H10 suits people seeking a long-battery-life chest strap because its replaceable CR2025 battery provides up to 400 hours of training.
- **Additional Sources:** [^2]

### MYZONE MZ-Switch
```yaml
product: myzone-mz-switch
brand: MYZONE
price_gbp: 88.54
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
battery_life: up to 6 months on chest, up to 2 months on wrist
compatibility: dual-channel Bluetooth and ANT+; Myzone app, Garmin, Apple Watch, Peloton and other Bluetooth devices
waterproof_rating: waterproof up to 10m
heart_rate_accuracy: over 99% ECG chest, approximately 95% PPG wrist or arm
```

- **Price:** £88.54 [^3]
- **Summary:** The MYZONE MZ-Switch is an interchangeable heart-rate monitor that can be worn on the chest, arm or wrist. It uses ECG on the chest and optical PPG on the arm or wrist, making it suitable for people who vary their workouts and want accurate tracking across gym, outdoor and water-based activities.
- **Ideal For:** It suits people seeking a long-battery-life chest strap because it can last up to 6 months when worn on the chest, while providing over 99% ECG heart-rate accuracy.
- **Additional Sources:** [^4]

### Garmin HRM 600 M-XL Heart Rate Monitor - 010-13383-00
```yaml
product: garmin-hrm-600-m-xl-heart-rate-monitor-010-13383-00
brand: Garmin
price_gbp: 125.44
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
battery_life: Up to 2 months
compatibility: Compatible Garmin smartwatches, Edge cycling computers, and fitness equipment and apps
waterproof_rating: 5 ATM
heart_rate_accuracy: ±1 BPM
```

- **Price:** £125.44 [^5]
- **Summary:** Garmin HRM 600 is a premium chest strap that sends real-time heart rate and HRV data to compatible Garmin devices, and it can also record activity data when you cannot wear a watch. It includes running dynamics when paired with a compatible smartwatch and has a machine-washable strap.
- **Ideal For:** Its rechargeable battery is rated for up to 2 months of battery life (1 hour/day use), which is longer than most replaceable-coin-cell chest straps.
- **Additional Sources:** [^6], [^7]

---
## References & Sources
[^1]: Heart Rate Monitors USA, accessed 2026-09-13. https://www.heartratemonitorsusa.com/products/polar-h10-heart-rate-monitor-with-soft-chest-strap
[^2]: Watches Online, accessed 2026-09-13. https://www.watchesonline.com/polar-h10-heart-rate-belt
[^3]: Myzone Official Store, accessed 2026-09-13. https://buy.myzone.org/en-gb
[^4]: Carbon Gym, accessed 2026-09-13. https://www.carbongym.com.au/product/myzone-switch
[^5]: Staples, accessed 2026-09-13. https://www.staples.com/garmin-hrm-600-premium-heart-rate-monitor-m-xl-black-010-13383-00/product_24678638
[^6]: GPS Nation, accessed 2026-09-13. https://www.gpsnation.com/products/garmin-hrm-600-size-m-xl-010-13383-00
[^7]: Best Buy, accessed 2026-09-13. https://www.bestbuy.com/product/garmin-hrm-600-heart-rate-monitors-m-xl-black/JXF9YFFYR6