Sigma ROX 4.0 vs Wahoo ELEMNT Bolt V2
Comparison 2026 — Bike Computers
VS
Our verdict
Based on our weighted scoring, the Wahoo ELEMNT Bolt V2 edges out the Sigma ROX 4.0 with an overall score of 88/100 against 76/100. It scores particularly well on features (90/100) and ease of use (90/100), making it the better all-round pick in Bike Computers.
The Sigma ROX 4.0 remains a sensible alternative if price is your main concern — it lands at €69.99 versus €279.99.
Features winner
Wahoo ELEMNT Bolt V2
20% higher than its rival
Value winner
Sigma ROX 4.0
20% better value for money
Specifications
| Specification | Sigma ROX 4.0 | Wahoo ELEMNT Bolt V2 |
|---|---|---|
| Price | €69.99+300% | €279.99 |
| Rating | ★4.2 (1,450) | ★4.4 (2,340) |
| Overall | 76/100 | 88/100+16% |
| Features | ||
| Type | GPS fietscomputer | GPS fietscomputer |
| GPS | GPS, GLONASS, Galileo | Dual-band GNSS |
| Navigation | Tracknavigatie | Turn-by-turn |
| Sensors | — | ANT+, Bluetooth |
| Display | ||
| Screen | 2.4 inch monochroom+9% | 2.2 inch kleur |
| Resolution | — | 240 × 320 px |
| Battery | ||
| Battery life | 25 uur | — |
| Properties | ||
| Weight | 51 g+33% | 68 g |
| Waterproof rating | IPX7 | IPX7 |
| Battery & connectivity | ||
| Battery life | — | 15 uur |
| Connectivity | — | WiFi, Bluetooth, ANT+ |
Pros and cons
Sigma ROX 4.0
Pros
- Sharp price for a GPS bike computer with navigation
- 25 hours of battery life — one of the longest in its class
- Pairs with heart rate straps and speed sensors via ANT+/Bluetooth
- Simple three-button operation
Cons
- No map display — only track navigation with arrows
- Black-and-white screen, less clear than color displays
Wahoo ELEMNT Bolt V2
Pros
- Aerodynamic profile — wind-tunnel tested and streamlined
- Simplest setup on the market: everything through the smartphone app
- Dual-band GPS for reliable navigation
- Live Track: share your location in real time with family
Cons
- Less training analysis than Garmin without a Wahoo SYSTM subscription
- Smaller screen than the Garmin Edge 540