# What are the quietest cycling computers available in the market? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the quietest cycling computers available in the market?

## Products

### Sigma ROX 11.1 EVO
```yaml
product: sigma-rox-11-1-evo
brand: Sigma
price_gbp: 90.93
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
gps: GPS, GLONASS, Galileo
weight: 55 g
resolution: 128 x 160 pixels
waterproof: IP67
screen_size: 1.77 in
battery_life: 18 hours
connectivity: ANT+, BLE
```

- **Price:** £90.93 [^1]
- **Summary:** The Sigma ROX 11.1 EVO is a compact cycling computer with a colour display, track navigation, structured workouts, crash alerts and support for e-bikes and external sensors. It suits cyclists who want extensive training and navigation features in a lightweight device without full on-device maps.
- **Ideal For:** It suits people seeking quiet cycling computers because its five-button operation has no touchscreen or audible fan, while its compact 55 g design, 1.77 in display and up to 18-hour battery support unobtrusive training and navigation.
- **Additional Sources:** [^2], [^3]

---
## References & Sources
[^1]: SIGMA, accessed 2026-09-13. https://sigma.bike/product/rox-11-1/
[^2]: Rose Bikes, accessed 2026-09-13. https://www.rosebikes.it/p/sigma-rox-111-evo-gps-bike-computer-2701070
[^3]: Alltricks, accessed 2026-09-13. https://www.alltricks.com/F-11915-compteurs-velo/P-2031955-sigma_rox_11_1_evo_hr_set_gps_computer_black