OnePlus Watch 3

Quick Facts

Item	Details
Launch Year	2025
Case Material	Stainless Steel
Available Sizes	46mm
Display	1.5-inch LTPO AMOLED, Sapphire Crystal, up to 2,200 nits
Processor	Qualcomm Snapdragon W5 Gen 1 + BES2800BP MCU
Connectivity	Bluetooth
Battery Life	Up to 5 days (Smart Mode), up to 16 days (Power Saver Mode)
Water Resistance	5ATM + IP68 + MIL-STD-810H
Health Features	Heart Rate, Blood Oxygen (SpO₂), ECG, Wrist Temperature, Sleep Tracking, Stress Monitoring, 60-second Health Check
Storage	2GB RAM + 32GB Storage
Weight	Approx. 49.7g (without strap)
Compatibility	Android 9.0 or later

Overview

The OnePlus Watch 3 is OnePlus’ latest flagship smartwatch, combining Wear OS 5, premium materials and outstanding battery life. Built with a stainless steel case and Sapphire Crystal glass, it delivers flagship performance, comprehensive health tracking and seamless integration with Android devices.

Powered by the Snapdragon W5 Gen 1 processor and BES2800BP co-processor, it features a bright 1.5-inch LTPO AMOLED display, dual-frequency GPS, up to 5 days of battery life in Smart Mode, up to 16 days in Power Saver Mode and 5ATM water resistance. When buying a used OnePlus Watch 3, check the battery condition, display, buttons, charging contacts and Google account status before making your purchase.

Key Highlights

1. Exceptional Battery Life

The dual-engine architecture delivers class-leading battery life while maintaining the full Wear OS experience.

Why it matters

Up to 5 days in Smart Mode
Up to 16 days in Power Saver Mode
Less frequent charging

2. Premium Build Quality

The stainless steel case and Sapphire Crystal glass provide durability and a premium appearance.

Why it matters

Scratch-resistant display
Premium materials
Comfortable for everyday wear

3. Advanced Health Monitoring

Monitor your health with OnePlus’ latest wellness and fitness features.

Why it matters

ECG and Blood Oxygen monitoring
Wrist temperature tracking
60-second Health Check

Key Features Explained

Feature	Specification	Why It Matters
Display	1.5-inch LTPO AMOLED with Sapphire Crystal	Bright, smooth and highly durable
Processor	Snapdragon W5 Gen 1 + BES2800BP MCU	Fast Wear OS performance with excellent battery efficiency
Battery Life	Up to 5 days (16 days Power Saver Mode)	Excellent battery life for everyday use
Charging	VOOC Fast Charging	Around 10 minutes of charging provides approximately one day of use
Water Resistance	5ATM + IP68 + MIL-STD-810H	Suitable for swimming and everyday outdoor activities
GPS	Dual-Frequency GPS	Accurate navigation and workout tracking
Connectivity	Bluetooth	Seamlessly connects with Android smartphones
Health Features	Heart Rate, ECG, SpO₂, Temperature, Sleep Tracking, 60-second Health Check	Comprehensive health monitoring
Compatibility	Android 9.0 or later	Supports Wear OS and Google services

Bluetooth Connectivity

The OnePlus Watch 3 connects to your smartphone via Bluetooth.

Once connected, you can:

Receive calls and notifications
Reply to supported messages
Control music playback
Use Google Maps navigation
Download apps from Google Play

The OnePlus Watch 3 supports Bluetooth calling but does not support standalone eSIM connectivity.

Compare the Related Models

Feature	OnePlus Watch 2	OnePlus Watch 3	OPPO Watch X2	Samsung Galaxy Watch8
Launch Year	2024	2025	2025	2025
Display	1.43” AMOLED	1.5” LTPO AMOLED	1.5” LTPO AMOLED	Super AMOLED
Processor	Snapdragon W5 Gen 1	Snapdragon W5 Gen 1	Snapdragon W5 Gen 1	Exynos W1000
Battery Life	Up to 100 hrs	Up to 5 days	Up to 5 days	Up to 40 hrs
Storage	32GB	32GB	32GB	32GB
Water Resistance	5ATM + IP68	5ATM + IP68	5ATM + IP68	5ATM + IP68
GPS	Dual-Frequency GPS	Dual-Frequency GPS	Dual-Frequency GPS	Dual-Frequency GPS
Connectivity	Bluetooth	Bluetooth	Bluetooth	Bluetooth / LTE

Which OnePlus Watch Should You Choose?

Model	Recommended For
OnePlus Watch 3	Buyers who want OnePlus’ latest smartwatch with improved health tracking and battery life.
OnePlus Watch 2	Buyers looking for excellent value with similar Wear OS features.
OPPO Watch X2	Buyers who prefer OPPO’s smartwatch ecosystem with similar hardware.
Samsung Galaxy Watch8	Buyers who want LTE connectivity and Samsung Galaxy AI features.

Alternatives to OnePlus Watch 3

If you’re comparing before buying, you may also want to check these related SellUp Marketplace pages:

Common Questions

Is the OnePlus Watch 3 worth buying?

Yes. The OnePlus Watch 3 is OnePlus’ most advanced smartwatch, offering excellent battery life, Wear OS 5, premium build quality and comprehensive health tracking. It is an excellent choice for Android users looking for a flagship smartwatch.

What is the difference between the OnePlus Watch 3 and OnePlus Watch 2?

The OnePlus Watch 3 features a larger and brighter LTPO AMOLED display, improved health sensors, longer battery life in Power Saver Mode and updated Wear OS software while retaining the excellent performance and battery efficiency of the OnePlus Watch 2.

Is the OnePlus Watch 3 waterproof?

The OnePlus Watch 3 is rated 5ATM + IP68 and meets MIL-STD-810H durability standards. It is suitable for swimming, showers and everyday outdoor activities but is not intended for scuba diving or high-pressure water sports.

Should I buy the OnePlus Watch 3 or Samsung Galaxy Watch8?

Choose the OnePlus Watch 3 if you prioritise battery life, Wear OS and a clean Android experience. Choose the Samsung Galaxy Watch8 if you use a Samsung Galaxy phone and want Galaxy AI features with deeper ecosystem integration.

Why Buy the OnePlus Watch 3?

The OnePlus Watch 3 combines premium craftsmanship, Wear OS 5, outstanding battery life and advanced health tracking into OnePlus’ best smartwatch to date. With Google apps, dual-frequency GPS and multi-day battery life, it is an excellent choice for Android users looking for a premium everyday smartwatch. Compare OnePlus Watch 3 listings on SellUp Marketplace to find the condition and price that best suit your budget.