The ultimate training and adventure companion with an ultra-slim profile and unmatched battery life.
The Coros Dura 2 Solar GPS bike computer is designed for cyclists seeking performance and refined design. Combining exceptional battery life, a 3.5-inch display, detailed mapping, and an ultra-lightweight build, it’s the bike computer that helps you train smarter and ride farther than ever before.
Unmatched battery life
A single charge provides 120 hours of ride time, not including solar charging. On the sunniest days, the monocrystalline solar panel adds up to 2 hours of additional battery life for every hour of sunlight. This means you can ride for a long time without recharging your Coros Dura 2 Solar.
A large 3.5-inch Memory-in-Pixel display
The Dura 2 Solar features a display that is 30% larger and has a pixel density 17% higher than the Coros Dura 1. Its display is optimized for outdoor use in direct sunlight, with an anti-glare coating.
Carbon-Fiber Construction
The Coros Dura 2 Solar is ultra-lightweight, weighing just 99 grams. This is made possible by a combination of aluminum alloy and carbon fiber. These materials were chosen for their strength-to-weight ratio.
Voice Controls
With its wind-resistant microphone and powerful speaker, the Coros Dura 2 Solar lets you start routes, end rides, recalculate your route, skip tracks, and hear turn-by-turn voice prompts—even on the noisiest streets and during the windiest descents. When your hands need to stay on the handlebars, your voice and the speaker take care of the rest.
Coros Training System
In the Coros app and Training Hub, you can set new goals, track your progress, and get in-depth analysis of your cycling level, training performance, and overall aerobic fitness. To sync a training plan or session to the Dura 2 Solar, you can take an FTP test or adjust it manually to set your training zones.
Designed to be personalized
Whether you’re riding on the road, on gravel, mountain biking, or even competing in a triathlon, the Dura 2 Solar is your ideal companion. Its navigation features provide precise guidance, enhanced by instant route recalculation, easy return-to-start functionality, and automatic management of multisport transitions. When it comes to training, the device offers advanced performance tracking through comprehensive metrics (FTP, VO2max, training load, fitness level) as well as structured workouts and pace and nutrition alerts to optimize your effort. Connectivity ensures fast synchronization with third-party apps (Strava, Komoot, TrainingPeaks) and allows you to pair up to 15 BLE/ANT+ sensors simultaneously (speed sensors, pressure sensors, Shimano digital shifters, SRAM AXS, Campagnolo). Finally, safety is enhanced by fall detection with automatic emergency alerts, as well as real-time weather notifications to anticipate changing conditions and Live Track monitoring.
Highlights of the Coros Dura 2 Solar:
- Bold, premium design: a woven carbon fiber base with an ultra-slim profile and a tapered aluminum alloy frame combine to create an elegant design, offering the distinctive feel of high-end materials.
- Ultra-lightweight: Just 99 g.
- 3.5-inch display: The ultra-responsive ceramic glass touchscreen gives you total control, even when wearing gloves or in the rain.
- Solar charging: 120 hours of battery life on a single charge, plus 1 to 2 hours of extra battery life from the sun for every hour you’re on the bike.
- Voice control: Easily start and end your rides, add points of interest, control your media player, change routes, and much more.
- Fast and detailed maps: street names, trails, and points of interest; automatic climb detection; offline route recalculation; turn-by-turn navigation.
In the box:
- Coros Dura 2 Solar Black GPS Bike Computer: BDURA2_SOL_BLK.
- USB-C cable.
- Wrist strap.
- Documentation.
Dura 2 Solar Details:
General
- Dimensions: 117 x 58 x 17 mm (without stand).
- Weight: 99 g.
- Screen size: 3.5 inches.
- Screen resolution: 336 x 620.
- Screen type: SHARP MIP.
- Screen material: tempered mineral glass.
- Bezel material: high-strength aluminum alloy with anodized finish.
- Case material: carbon fiber.
- Solar module material: tempered mineral glass with a high-strength polymer base.
- Controls: 2 mechanical buttons, 2 haptic buttons, touchscreen (swipe and tap interactions).
- Voice controls: Quick start of activities / changing settings / voice search for navigation to a destination (coming soon).
- Water and dust resistance: IP67.
- Operating temperature: -20℃ ~ 60℃.
- Storage temperature: -30℃ ~ 70℃.
- Charging temperature: USB-C charging 0 °C – 50 °C / solar charging 0 °C – 60 °C.
- Charging time: 2 hours 30 minutes to 4 hours, depending on the ambient temperature.
- Charging type: USB-C.
- Satellite systems: GPS, GLONASS, Galileo, Beidou, QZSS.
- GNSS chip: all satellites – dual-frequency (L1 + L5).
- Storage: 32 GB.
- Wireless protocol: Bluetooth 5.4 and ANT+.
- Multiple connections: Can pair with up to 15 sensors simultaneously.
- Electronic shifting compatibility: Shimano, SRAM, Campagnolo.
Battery Life
- All-system precision mode: 120 hours (without solar charging).
- Max dual-frequency mode: 70 hours (without solar charging).
- Solar battery: 2 hours of additional battery life for every hour spent in the saddle.
Navigation
- Landscape maps (with street names): comprehensive road maps that clearly display the names of streets, roads, and major thoroughfares to help you navigate in the city or on the road.
- Topographic (Topo) maps: maps showing terrain elevation, elevation changes, and contour lines.
- Downloadable world maps: Free maps that can be downloaded to the device for 100% offline use.
- Ascent details with or without a route: analysis of the slope profile and remaining elevation gain on a climb, whether you’re following a route or not.
- Turn-by-turn: Navigation alerts telling you when and where to turn as you approach each intersection.
- Navigation to a destination / Points of Interest (POI): Follow a predefined route or navigate to specific points of interest (stops, water sources, peaks).
- Connection to the COROS app for online navigation: search for, edit, or create routes directly in the COROS app and send them instantly to the device.
Sensors and Data
- Barometric altimeter.
- Accelerometer.
- Gyroscope.
- Digital compass.
- Temperature sensor.
- Microphone.
- Speaker.
- Music.
Training features
- EvoLab: recovery, fatigue, training load, VO₂ max, threshold zones, and other metrics.
- Performance assessment: determination of threshold power, maximum power, fitness level, VO₂ max, and training zones.
- Activity alerts: cadence, speed, distance, heart rate, power.
- Nutrition alerts.
- Interval training.
- Recovery time assessment.
- Pre-planned, personalized, and imported workouts.
- Heart rate.
- Left/right power.
- Time spent sitting/standing.
- Camera control: compatible with select GoPro, DJI, and Insta360 cameras.
- Media player.
- Customizable button actions: start, skip, and cancel laps.
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