COROS DURA 2 Adds Larger Screen and Solar Charging
COROS will put the DURA 2 on sale from November 3, 2026, according to Montre Cardio GPS. This is not a minor refresh of the original DURA. The cycling computer gets an entirely different body, a much larger transflective display, touchscreen controls, a speaker and microphone, while holding onto the formula that made the first model interesting: long battery life with solar charging. For endurance cyclists who already train with a COROS watch, this looks like the brand’s most convincing bike-side companion yet.
Bigger screen, unusual controls
The 42 x 78 mm display measures 8.9 cm diagonally, a 60% increase over the DURA, and its 336 x 620-pixel resolution should make mapping far less cramped. It is still a transflective panel, meaning it reflects ambient light for strong daylight visibility, while automatic backlighting handles darker conditions. Montre Cardio GPS says the screen was consistently readable in testing. At 99 g, the DURA 2 is also far lighter than the 161 g Edge 1050 cited in the review.
COROS has replaced the original dial with a touchscreen, two physical buttons and a pressure-operated touch area built into the solar panel below the screen. Pinch-to-zoom on maps is a welcome, properly modern addition. The screen reportedly works with thin gloves and does not mistake heavy raindrops for taps, though operation degrades when it gets very wet. The lower solar touch buttons sound less polished: they require a firm press and do not respond across their entire surface. Still, this is a more ambitious interface than the usual computer-with-buttons template.
Navigation, training and battery endurance
The DURA 2 uses dual-frequency multi-GNSS, a barometric altimeter, compass and temperature sensor. Its automatic mode switches satellite settings based on signal quality, according to the source. It supports Bluetooth and ANT+ sensors, including power meters, heart rate monitors and smart trainers, and can show external accessory battery levels. Riders using a COROS GPS watch can have heart rate data pulled from the watch automatically, a useful bit of ecosystem integration for triathletes. If you are weighing that wider setup, our [COROS Pace 4 Pro guide](/en/articles/coros-pace-series-upgrade-guide-2026-09-25) covers the watch side.
Battery claims remain the headline: 120 hours in multi-GNSS mode and 70 hours in dual-frequency multi-GNSS, before solar contribution. COROS claims one hour at 75,000 lux adds two hours of runtime. Real roads are less clean than a lab test. Montre Cardio GPS recorded a small net battery gain during a 1 hour 20 minute September ride, though without route following, and sensibly cautions that body shadow, trees and sun angle all affect solar yield. Even so, retaining the original DURA’s endurance despite the bigger screen is an impressive result.
Mapping is stored locally in 32 GB of memory, with capacity for maps and 200 hours of recording. Route guidance includes spoken turn prompts, and rerouting no longer needs an internet connection, but it still requires the paired smartphone with the COROS app open. Climbs can trigger Climb Alerts even without following a route, though the review found this uncertain on short climbs. COROS also brings structured workouts, training plans, Strava Live Segments, nutrition alerts, media and action-camera controls, LiveTrack, fall detection and an audible anti-theft alarm. The very loud double-tap bike bell sounds like the kind of small feature riders may use more than expected.
There are real gaps. Voice control was largely unsuccessful in the review, with only one tested command working reliably. GPS tracks showed a tendency to round corners. There is no custom sport profile, so commuters cannot create a dedicated ride type, and loading or changing a route mid-ride requires pausing the recording in practice. Map point-of-interest prioritisation also appears weak when looking for water. Worst of all for a computer with a microphone and speaker, phone calls could not be made successfully with the tester’s iPhone.
The DURA 2 is for long-distance riders and COROS-watch owners who want serious mapping and training tools without treating charging as a weekly ritual. It is not perfect navigation hardware yet. But versus the original DURA, the larger display and more capable interface make it a far more complete cycling computer, while the integrated COROS watch connection gives triathletes a reason to look beyond Garmin.
