Coros Dura 2 Solar: 120 hours on paper, 499 euros at the till

Sorting out the cables in the tent in the evening: the torch, mobile phone and cycle computer all need power. Coros launched its first cycle computer, the Dura 1, in June 2024. It offered up to 120 hours of ride time, and every hour of solar charging provided up to two hours of additional runtime. The Dura 2 Solar retains these features. It has a larger display, a carbon and aluminium casing, and a new climb detection feature.

First impressions

We used the Coros Dura 2 on our bike for around five hours. Of that, 2.5 hours – or 60 kilometres – were spent on a gravel race. That’s not enough to form a definitive opinion. But it’s enough for a first impression:

• Display: easy to read
• Instructions: The touchscreen works surprisingly well in wet conditions; to use voice control, press the left side button for about a second. Saying “Start road cycling” takes you to where you can start your road cycling session. It’s unclear what other commands are available.
• Feel and weight: Thanks to the stepped design on the back, the device fits comfortably in the hand; weighing 99.9 grams (our own measurement), the sat-nav is light
• Navigation: Routes were synchronised within seconds during the first test; I took two wrong turns on the first ride; as I got used to the interface of the device, which was still unfamiliar to me, things went more and more smoothly

Our assessment

The long battery life and solar charging are nothing new for the Coros Dura. What is new, however, is the larger display, the layout of the display and solar panel, the device design and the user interface. The first Dura had a 2.7-inch display; the new model has a 3.5-inch display. It also featured a side-mounted rotary dial, like the Coros watches. The Dura 2 Solar features a touchscreen, two buttons on the side, two buttons on the solar panel and voice control. Garmin unveiled the Edge 1060 with voice control on Tuesday (799.99 euros). You activate it there by saying ‘Okay Garmin’; on the Dura 2, you do so using a button.

Suitable for bikepacking trips, ultracycling races and people who want to recharge less often.

​In terms of price, the sat-nav is 260 euros more expensive than the first Dura (549 versus 289 euros, both including a mount).

Coros quotes a battery life of up to 120 hours, but does not specify a GPS mode. Garmin states that for the Edge 850 up to 36 hours in power-saving mode, Wahoo for the Roam 3 Up to 25 hours. According to Garmin, the new Edge 1060 lasts up to 60 hours in power-saving mode, or 20 hours with intensive use. On paper, the Dura 2 Solar therefore comes out on top. Our first five hours, with four connected sensors, GPS set to medium mode and plenty of trial and error, used up around 20 per cent of the battery. That’s more than expected. Based on our experience with Coros devices, we’d expect more in everyday use.

​Whether the larger display, touchscreen and voice control justify the €260 surcharge depends on how the battery life holds up in everyday use. We’ll find that out in our in-depth review.

Figures, data, facts

• Battery life: up to 120 hours
• Solar shop: up to 2 hours’ extra running time for every hour of sunshine
• Display: 3.5-inch, SHARP Memory-in-Pixel, touchscreen (previous model: 2.7-inch)
• Instructions: Touchscreen, buttons, voice control
• Weight: 99.9 grams (on the TOUR scales)
• Material: Housing made of carbon fibre and anodised aluminium
• Navigation: Offline route recalculation, automatic ascent detection, live tracking
• Compatibility: The Coros app can be linked to Strava, TrainingPeaks, Intervals.icu and more
• Launch date: 3 November 2026
• Price of the device only: from 499 euros
• ​Price of sat-nav including mount: 549 euros
• Standard aluminium bracket: 79 euros
• Aluminium front-mounted bracket: 79 euros

The Coros Dura 2 Solar in detail

Battery and solar: The battery life is said to be up to 120 hours, and sunlight is said to provide two hours of running time for every hour of riding. The display and solar panel have also swapped positions compared with the first Dura, meaning the display is now more within the rider’s field of vision, allowing the rider to keep their eyes further ahead.

Navigation: If you stray from the route, the device will recalculate it without an internet connection. This is helpful on gravel routes where there’s no mobile network coverage. A new feature is the climb detection function. It shows you what lies ahead, even without a pre-loaded route. Others can follow your ride via live tracking.

Safety: The live tracking function is also a safety feature. Thanks to fall detection and safety alarms, emergency contacts can be notified should the worst happen. Pressing and holding the right-hand side button for seven seconds also triggers the alarm. To notify emergency contacts, a smartphone must be connected and have a signal.

Design and operation: The casing is made from carbon fibre and anodised aluminium. The Memory-in-Pixel display is easy to read and saves power. You can control it via touch, buttons or voice commands.

Training: Your rides are automatically synced to the Coros app. There, you’ll find new fitness metrics for cycling. With a Coros watch or heart rate sensor, you’ll also get additional data on training, fitness and recovery. You can plan routes directly in the app, or download a GPX file from your preferred route-planning tool and open it in the Coros app. Strava, TrainingPeaks, Intervals.icu and other apps can be linked. There’s an interface through which you can grant AI models access to your training and health data. This can be used for analysis and planning.