OnePlus Watch 3
Wear OS 5 with Snapdragon W5 + BES2800 dual chips — 5-day smart battery and 16-day power-saver.
The OnePlus Watch 3 (2025) is a smartwatch with a list price of $329 in our database. It is rated for about 5 days per charge, weighs 49 g with a 47 mm case and an AMOLED display, and includes built-in GPS, ECG, blood-oxygen (SpO₂), on-device music and swim tracking. It works with Android only.
Specs last updated
Specifications
What it is good at
- Bright, vivid AMOLED display.
Best for
Features
Who should skip it
- You use an iPhone — it needs an Android phone for full features.
- You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).
Where it ranks #1 in our quiz
The OnePlus Watch 3 is the top pick for these standard profiles. Each page shows the full scoring breakdown.
Frequently asked questions
How long does the OnePlus Watch 3 battery last?
The manufacturer rates it at about 5 days per charge. Always-on display, constant GPS and cellular use shorten that. Among the 30 smartwatches in our database it beats about 50% on rated battery life.
Does the OnePlus Watch 3 work with iPhone and Android?
It works with Android only. It does not pair fully with an iPhone.
Can I swim with the OnePlus Watch 3?
5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving. It also has a swim-tracking mode.
How much does the OnePlus Watch 3 cost?
Our database lists $329 (May 2026). That is a list price, not today's price, so check the Amazon listing before you buy.
Who should not buy the OnePlus Watch 3?
It is a poor fit if any of these apply. You use an iPhone — it needs an Android phone for full features. You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).