🗓 Released Apr 10, 2025
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Cycle Advice
CautionFirst-generation product — no release history to base predictions on
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Deals Advice
neutralNo upcoming deals on the radar
First-generation product — no release history to base predictions on
No upcoming deals on the radar
| Model | Battery | GPS | Key Sensors | Best For |
|---|---|---|---|---|
| OnePlus Watch 3 (46mm) | 5 days / 16 days saver | Yes (dual-band) | ECG, SpO2, skin temp, HR | Maximum battery and full Wear OS experience. |
| OnePlus Watch 3 43mm | 2.5 days / 7 days saver | Yes (dual-band) | ECG, SpO2, skin temp, HR | Compact fit for smaller wrists. |
OnePlus Watch 3 launched in the US in April 2025 running Wear OS 5 on a Snapdragon W5 Gen 1 chip. Dual-engine architecture (Snapdragon + BES2800 co-processor) delivers up to 5 days of battery in Smart Mode and 16 days in Power Saver — significantly longer than most Wear OS competitors. ECG, SpO2, skin temperature, HRV, and dual-frequency GPS are all built in. At $329 it undercuts the Pixel Watch and Samsung Galaxy Watch while matching them on key specs. A compact 43mm variant followed in summer 2025.
The dual-engine Snapdragon W5 + BES2800 co-processor architecture delivers up to 5 days in Smart Mode — 2–3× longer than most Wear OS rivals. A 10-minute charge provides a full day of use.
L1 + L5 dual-band GPS gives running and cycling route accuracy typically found only on $500+ sports watches — accurate to within metres even in urban canyons.
Google Maps turn-by-turn navigation, Google Wallet contactless payment, and Play Store app access — plus Google Health Connect integration for the full Android wearables ecosystem.
Android users who want full Wear OS 5 — Google Maps, Google Wallet, Play Store — with longer-than-average battery life without paying premium Galaxy Watch or Pixel Watch prices. Not for iPhone users: OnePlus Watch 3 does not support iOS.
No — OnePlus Watch 3 runs Wear OS and requires Android 9.0 or later. It is not compatible with iPhone. iPhone users should consider the Apple Watch instead.
OnePlus Watch 3 ($329) offers better battery life (5 days vs ~2 days for Galaxy Watch 8) and dual-band GPS at a lower price. Galaxy Watch 8 has blood pressure monitoring, body composition analysis, and tighter Samsung ecosystem integration. Choose OnePlus for battery life and value; choose Galaxy Watch for the full Samsung health suite.
Up to 5 days in Smart Mode (typical Wear OS usage with notifications, always-on off) or up to 16 days in Power Saver Mode. With always-on display enabled, battery drops to approximately 3 days. A 10-minute fast charge adds a full day of use.
Yes — the 1.5-inch LTPO AMOLED display supports always-on mode. Enabling AOD reduces battery life by approximately 2 days, from roughly 5 days to 3 days in Smart Mode.
OnePlus Watch 3 ($329) has significantly better battery life than the Pixel Watch and costs less. Pixel Watch offers deeper Fitbit health coaching and tighter Google ecosystem integration. If battery life is your priority, OnePlus Watch 3 wins clearly. If you want the best Fitbit health coaching on Wear OS, Pixel Watch is the stronger pick.
Yes — OnePlus launched a 43mm compact variant in summer 2025 at $329 for users with smaller wrists. The 43mm has the same Wear OS 5 software and sensors but shorter battery life (approximately 2.5 days in Smart Mode vs 5 days for the standard 46mm model).