# What are the best cycling computers with heart rate monitoring? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the best cycling computers with heart rate monitoring?

## Products

### Wahoo ELEMNT BOLT 3 GPS Bike Computer
```yaml
product: wahoo-elemnt-bolt-3-gps-bike-computer
brand: Wahoo
price_gbp: 258.31
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 84 g
resolution: 480 x 720 pixels
screen_size: 2.3 in
battery_life: Up to 20 hours
gps_accuracy: Dual-band GPS
waterproof_rating: IPX7
heart_rate_monitor: Compatible with external heart rate monitors via Bluetooth and ANT+
smartphone_compatibility: iPhone and Android smartphones via the Wahoo app
```

- **Price:** £258.31 [^1]
- **Summary:** The Wahoo ELEMNT BOLT 3 is a compact, lightweight cycling computer with a 2.3 in high-resolution color display, dual-band GPS, smart navigation, and up to 20 hours of battery life. It suits road cyclists, racers, and performance-focused riders who want reliable ride data and compatibility with external sensors and training apps.
- **Ideal For:** It suits cyclists seeking heart rate monitoring because it supports external heart rate monitors through Bluetooth and ANT+, while providing heart-rate data fields, a 2.3 in display, dual-band GPS, and up to 20 hours of battery life.
- **Additional Sources:** [^2], [^3]

### Hammerhead Karoo SKU 00.3018.396.001
```yaml
product: hammerhead-karoo-sku-00-3018-396-001
brand: Hammerhead
price_gbp: 387.47
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 118 g
resolution: 480 x 800 pixels
screen_size: 3.2in
battery_life: 15+ hours
gps_accuracy: High accuracy multi-band GNSS
waterproof_rating: IP67
heart_rate_monitor: External monitors via ANT+ and Bluetooth
smartphone_compatibility: Bluetooth and Wi-Fi smartphones
```

- **Price:** £387.47 [^4]
- **Summary:** The Hammerhead Karoo has a bright 3.2in touchscreen, detailed 480 x 800 pixel display, multi-band GNSS, and IP67 water resistance. Its 15+ hour battery and support for external heart rate sensors make it suitable for training, navigation, and long road or off-road rides.
- **Ideal For:** This suits cyclists seeking heart rate monitoring because it supports external heart rate monitors through ANT+ and Bluetooth while providing accurate multi-band GNSS, a high-resolution touchscreen, and 15+ hours of battery life.
- **Additional Sources:** [^5], [^6]

---
## References & Sources
[^1]: Wahoo Fitness, accessed 2026-09-13. https://www.wahoofitness.com/devices/bike-computers/elemnt-bolt-buy
[^2]: REI, accessed 2026-09-13. https://www.rei.com/product/255892/wahoo-fitness-elemnt-bolt-3-gps-cycling-computer
[^3]: Landry's Bicycles, accessed 2026-09-13. https://www.landrys.com/products/wahoo-fitness-elemnt-bolt-3-gps-cycling-computer
[^4]: BikeTiresDirect, accessed 2026-09-13. https://www.biketiresdirect.com/product/hammerhead-karoo-v3-gps-computer
[^5]: R&A Cycles, accessed 2026-09-13. https://racycles.com/products/hammerhead-karoo-gps-bike-computer
[^6]: Mike's Bikes, accessed 2026-09-13. https://mikesbikes.com/products/hammerhead-karoo-gps-bike-computer