# Sigma ROX 12.1 Evo: specs and price

**Price (US):** $379.95 at sigma.bike (MSRP, basic set (device + mount)), as of 2026-06-27. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 18 bike computers we track it is #10 cheapest of 18; category median $365.
**Brand:** Sigma
**Released:** 2023-06
**Deskmark:** Bronze Deskmark — pay-blind category standing 29/100, #14 of 18 in class (independent, computed from sourced data, never for sale).
**Price tracked since:** June 2026

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $379.95 |
| Brand | Sigma |
| Released | 2023-06 |
| Display size (in) | 3.0 in |
| Touchscreen | Yes |
| Battery life hours | 14 |
| Preloaded maps | Yes |
| Multiband gnss | No |
| Connectivity | ANT+, Bluetooth, Wi-Fi |
| Weight (g) | 112 |

## Where it stands

At $380, the Sigma ROX 12.1 Evo is #10 cheapest of the 18 bike computers we track, where the median is $365. On the spec sheet, its display size of 3.0 in is above the median of the 18, its battery life hours of 14 is below the median of the 18, and its weight of 112 g is above the median of the 17. By release date, it is among the newer of the 17 we date.

## What reviewers say

Only one whitelisted tester (BikeRadar) published a hands-on review of this exact model. BikeRadar rated it 2/5, praising easy route-following and rich training data but panning meagre battery life (10h with a heart rate monitor only; 4.5h navigating with sensors), a rain-triggered touchscreen, cheap build and an uncompetitive £379.95 price. (Based on 1 review, 1 lab-tested, 2023-10-05.)

Praised: Easy-to-follow turn-by-turn navigation and clear routing; Data-rich training metrics with a capable companion app.
Flagged: Meagre battery life, far below the claimed 14 hours; Touchscreen misbehaves in rain, skipping pages and changing settings; Uncompetitive £379.95 price versus Garmin/Wahoo rivals; Cheap-feeling build, oversensitive side buttons and shrill alert tones; Lacks live tracking and a climbing feature.
Disagreement: Single-source, so no cross-source comparison is possible. Internally, BikeRadar concedes that navigation is the device's strongest feature yet says its poor battery life leaves that benefit short-lived.
Sources: BikeRadar (2023-10-05, bikeradar.com)

## Frequently asked questions

**What do reviewers say about the Sigma ROX 12.1 Evo?**

Only one whitelisted tester (BikeRadar) published a hands-on review of this exact model. BikeRadar rated it 2/5, praising easy route-following and rich training data but panning meagre battery life (10h with a heart rate monitor only; 4.5h navigating with sensors), a rain-triggered touchscreen, cheap build and an uncompetitive £379.95 price. Praised: Easy-to-follow turn-by-turn navigation and clear routing; Data-rich training metrics with a capable companion app. Flagged: Meagre battery life, far below the claimed 14 hours; Touchscreen misbehaves in rain, skipping pages and changing settings; Uncompetitive £379.95 price versus Garmin/Wahoo rivals; Cheap-feeling build, oversensitive side buttons and shrill alert tones; Lacks live tracking and a climbing feature. (From 1 tester review, 1 lab-tested.)

**How much does the Sigma ROX 12.1 Evo cost?**

The Sigma ROX 12.1 Evo has a US price of $379.95 (MSRP, basic set (device + mount)), as of 2026-06-19.

**How does the Sigma ROX 12.1 Evo compare on price?**

At $380, the Sigma ROX 12.1 Evo is #10 cheapest of the 18 bike computers we track, where the median is $365.

**When was the Sigma ROX 12.1 Evo released?**

The Sigma ROX 12.1 Evo was released 2023-06.

**What are the Sigma ROX 12.1 Evo's key specs?**

Sigma ROX 12.1 Evo (Sigma): display size in 3.0 in, touchscreen Yes, battery life hours 14, preloaded maps Yes, multiband gnss No. Full sourced spec sheet verified 2026-06-19.

Source: https://sigma.bike/product/rox-12-1-evo/ (sigma.bike, accessed 2026-06-19)
Corroboration: https://www.bikeradar.com/reviews/training/gps-computers/gps-devices/sigma-rox-12-1-evo-bike-computer-review (accessed 2026-06-19)
Canonical: https://frontdeskreview.com/product/bike-computers/sigma-rox-12-1-evo/
Cite: Per The Front Desk Review, the Sigma ROX 12.1 Evo price of record was $379.95 as of 2026-06-19 — https://frontdeskreview.com/product/bike-computers/sigma-rox-12-1-evo/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl