| Display | 1.5" AMOLED, 480 x 480, 323 PPI, tempered glass | Always-On display; cover glass 4x more resistant to cracks than previous generation (Ion-X) |
|---|
| 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 18 hours; 15 minutes of fast charging adds up to 8 hours, about 80% in 45 minutes |
|---|
| Water Resistance | 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 | — |
|---|
| Connectivity | Wi-Fi 2.4GHz, Bluetooth 5.0, Bluetooth phone calls | 5G cellular models |
|---|
| Storage | Music storage up to 2.2GB | — |
|---|
| OS | Zepp OS 3.0 at launch (later Zepp OS 3.5 / 4) | watchOS 26 (requires iPhone 11 or later with iOS 26) |
|---|
| Compatibility | Android 7.0+, iOS 14.0+ | — |
|---|
| Case Size | — | 40mm / 44mm aluminium (midnight, starlight) |
|---|
| Chipset | — | Apple S10 |
|---|
| Health Sensors | — | Heart rate, wrist temperature sensing, sleep score, sleep apnea notifications, retrospective ovulation estimates |
|---|
