How Long Does Galaxy Watch 8 Battery Last?
The Galaxy Watch 8 battery lasts 24-36 hours depending on model size and usage. The 44mm model has a larger battery that extends run time compared to the 40mm model.
Battery by Model
| Model | Battery | Typical Life |
|---|---|---|
| 40mm | 300mAh | 24-30 hours |
| 44mm | 425mAh | 30-36 hours |
What Affects Battery Life
Features That Drain Battery Faster:
- Always-on display enabled
- Continuous GPS tracking
- LTE connectivity without phone nearby
- High screen brightness
- Frequent app usage
Features That Use Moderate Power:
- Continuous heart rate monitoring
- Sleep tracking overnight
- Regular notifications
- WiFi connectivity
Estimated Battery by Usage
- Light Usage: Up to 2 days (basic notifications, occasional glances)
- Normal Usage: 1-1.5 days (notifications, health tracking, regular app use)
- Heavy Usage: Under 1 day (GPS workouts, always-on display, frequent apps)
Extend Battery Life
Quick tips to get more from each charge:
- Disable Always-On Display: Adds 15-25% battery life
- Lower Brightness: Use auto-brightness or 50-70%
- Reduce Notifications: Filter to essential apps only
- Use Power Saving Mode: Limits features but extends battery significantly
- Turn Off WiFi: When not needed for standalone use
Charging Speed
- Full Charge: ~90 minutes (0-100%)
- Quick Charge: ~30 minutes provides 4-6 hours of use
Best Battery Model
If battery life is your priority, the 44mm model with its 425mAh battery provides 25-40% longer run time than the 40mm model.
See Also: Galaxy Watch 8 Battery Life Guide|How to Charge Galaxy Watch 8|Galaxy Watch 8 Specifications