At a Glance
- OnePlus Watch 3 delivers five days of normal-use battery life on a single charge.
- Dual-chip design splits Wear OS 5 duties from background tasks to stretch runtime.
- Price drops to $300 on Amazon in Emerald Titanium and Obsidian Titanium finishes.
- Why it matters: Wearers can travel for a week without hunting for a charger.
The OnePlus Watch 3 is challenging Apple and Google by solving the biggest smartwatch complaint-daily charging. News Of Fort Worth reports that the new model lasts up to five days in regular mode and can stretch to 16 days in power-saving mode, all while running full Wear OS 5.
How OnePlus Hit Five-Day Battery Life
Most smartwatches squeeze roughly a day of use from standard lithium-ion packs. OnePlus swapped in a higher-density 631-mAh silicon-carbon cell without bulking up the chassis. The company then added a second low-power chip, the BES2800, to juggle background tasks while the Qualcomm processor focuses on Wear OS features.
Key specs:
- 631-mAh silicon-carbon battery
- Dual-OS architecture
- 1.5-inch AMOLED display
- 45-mm case size
What You Still Get (and What You Don’t)
Despite the marathon battery, the watch keeps mainstream features intact:
- Fitness and sleep tracking
- Built-in GPS for navigation
- Phone calls and texting
- Heart-rate monitoring
- Fall detection
The electrocardiogram hardware is present, but OnePlus did not pursue FDA clearance for the U.S. or Health Canada approval, so that function stays dormant in North America.
Real-World Performance
Derrick M. Collins wore the watch and noted “no stuttering or lag” during daily use. The 1.5-inch AMOLED screen may feel large for slender wrists, yet it matches the footprint of many popular 45-mm analog watches. Whether checking notifications or tracking a run, the interface keeps pace with first-party rivals, according to the hands-on review.
Price Cut and Where to Buy
Amazon has temporarily cut the OnePlus Watch 3 to $300 in both color options:
| Colorway | Sale Price | Battery Life (Normal) | Battery Life (Power Save) |
|---|---|---|---|
| Emerald Titanium | $300 | 5 days | 16 days |
| Obsidian Titanium | $300 | 5 days | 16 days |
The deal applies to the U.S. store and includes standard Prime shipping.
How It Stacks Up
Battery life comparison (manufacturer claims):
- Apple Watch Series 9: ~18 hours
- Pixel Watch 2: ~24 hours
- OnePlus Watch 3: 5 days (up to 16 in power-save)
Wear OS 5 means the OnePlus Watch 3 supports Google Play apps, Google Pay, and Google Assistant, matching the Pixel Watch feature-for-feature outside of ECG.
Key Takeaways
- OnePlus uses silicon-carbon tech and dual processors to smash the battery-life ceiling.
- Five-day runtime eliminates nightly charging for most users.
- $300 sale price undercuts flagship watches while keeping core smart features.
- ECG sits unused in North America, but heart-rate, sleep, and fall detection work normally.
Travelers, endurance athletes, or anyone tired of daily plug-ins now have a Wear OS option that can run almost a full work week-or an entire vacation-without reaching for a cable.
