How Long to Charge OnePlus Watch 3?
The OnePlus Watch 3 charges 0-100% in 60-90 minutes with 7.5W fast charging via magnetic dock.
Charging Times
| Level | Time | Result |
|---|---|---|
| 0-50% | ~30 min | 2-3 days Smart Mode |
| 0-80% | ~50-60 min | 3-4 days Smart Mode |
| 0-100% | 60-90 min | Full 4-5 days |
| 10-min quick | 10 min | 8-12 hours use |
Quick Charging Scenarios
- Morning rush: 10 minutes = full workday coverage
- Before workout: 15 minutes = 1-hour GPS tracking covered
- Mid-day top-up: 30 minutes = 60-70% gained
- Full charge: 60 minutes = 90-95% capacity
Charging Requirements
For optimal speed:
- Official
OnePlusmagnetic dock - 7.5W+ power adapter
- Room temperature charging
- Watch idle (not in active use)
Slower charging from:
- Computer USB (2.5-5W)
- Lower wattage adapters
- Hot or cold environments
- Active watch use while charging
Charging Stages
- Stage 1 (0-80%): Fast charging at full 7.5W
- Stage 2 (80-100%): Trickle charge for battery health
- Maintenance: Safe to leave on charger overnight
Fast Charge Advantage
The 631mAh battery charges faster than most competitors relative to capacity - despite being 2x larger than Pixel Watch 3, it charges in similar time.
See Also: How to Charge OnePlus Watch 3|How Long Does Battery Last|Watch Not Charging