| Display | 1.5" AMOLED, 480 x 480, 323 PPI, tempered glass | 1.2-inch always-on transflective touchscreen with mineral glass and a night mode |
|---|
| Case | 46 x 46 x 10.6 mm, aluminum alloy middle frame, fiber-reinforced polymer bottom shell, 35 g without strap | — |
|---|
| Battery | Up to 14 days typical use (up to 5 days with always-on display), 475 mAh | Up to 15 days of regular use; up to 38 hours of full GPS (standard GPS mode) |
|---|
| Water Resistance | 5 ATM | 5 ATM |
|---|
| GPS | Dual-band GPS, 6 satellite systems, offline maps | — |
|---|
| Sensors | BioTracker 5.0 PPG (8PD + 2LED), BIA bioelectric impedance, accelerometer, gyroscope, geomagnetic, barometric, ambient light, temperature | Optical heart rate and SpO2 sensor (5 LEDs, 4 photodetectors), barometric altimeter |
|---|
| Connectivity | Wi-Fi 2.4GHz, Bluetooth 5.0, Bluetooth phone calls | Bluetooth; syncs with Strava, Nike Run Club, Apple Health and Health Connect; notifications, Find My Phone, GoPro and Insta360 control |
|---|
| Storage | Music storage up to 2.2GB | — |
|---|
| OS | Zepp OS 3.0 at launch (later Zepp OS 3.5 / 4) | — |
|---|
| Compatibility | Android 7.0+, iOS 14.0+ | — |
|---|
| Body | — | 11.7 mm thick; 30 g with nylon band; silicone and nylon band options; 20 mm quick-release bands |
|---|
| Positioning | — | GPS with optional dual-frequency mode, barometric altimeter, breadcrumb and turn-by-turn navigation |
|---|
| Sports | — | Run, bike, swim, strength and snow activity modes; training plans, workouts and COROS Training Hub |
|---|
| Music | — | Built-in audio support for music (per COROS) |
|---|
