OnePlus Watch 4
Quick details
Released
April 2026
Dimensions
47.4 x 47.4 x 11.0 mm
Operating system
OxygenOS Watch 8 + Wear OS 6
Display 1.5 inch LTPO OLED
Battery life up to 5 days in smart mode
Water resistance 5 ATM; IP68; IP69; MIL-STD-810H
GPS Yes
Sensors Accelerometer, gyroscope, optical heart rate, SpO2, ECG, wrist temperature, geomagnetic, ambient light, barometer, dual-band L1+L5 GNSS
Technical specifications
General
Release date 2026-04-28
Product type Smartwatch
Physical size 47.4 x 47.4 x 11.0 mm
Weight 43 g without strap; 68 g with strap
Material Titanium alloy case, PA with fiberglass bottom case, sapphire crystal, fluororubber strap
Water resistance 5 ATM; IP68; IP69; MIL-STD-810H
Color options Midnight Titanium, Evergreen Titanium
Display type LTPO OLED
Display size 1.5 inch
Display resolution 466 x 466 pixels, 310 PPI
Display brightness Up to 3,000 nits
Display protection Sapphire crystal
Battery Rechargeable battery; 646 mAh typical (632 mAh rated)
Battery life Up to 5 days smart mode, 3 days heavy use, 16 days power saver
Charging Charging base with USB-C cable
Charging time About 75 minutes maximum
Sensors
GNSS type Built-in dual-band GNSS
GPS Yes
GALILEO Yes
GLONASS Yes
QZSS Yes
Beidou Yes
Accelerometer Yes
Gyroscope Yes
Barometric altimeter Yes
Compass Yes
Geomagnetic Yes
Ambient light sensor Yes
Optical heart rate Yes
Electrical heart rate Yes
SpO2 Yes
Temperature Yes
Galvanic skin response No
Microphone Yes
Speakers Yes
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors Yes
Sports tracking Yes (100+ sports modes)
Sleep Yes
Heart rate Yes
HRV Yes
Stress Yes
Blood oxygen Yes
Respiration rate Yes
Skin temperature Yes
ECG Yes (regional availability)
Blood pressure No
Body composition No
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Hyperglycemia risk assessment No
Arterial stiffness detection Yes
Pulse wave arrhythmia analysis No
Daily smart features
Smartphone compatibility Android 9.0+ with GMS 23.45.23+; no iOS or Android Go support
Operating system at launch OxygenOS Watch 8 + Wear OS 6
Processor Qualcomm Snapdragon W5 + BES2800
RAM 2 GB
Storage 32 GB
Bluetooth Yes (5.2)
Wi-Fi Yes (2.4/5 GHz)
NFC / connected pay Yes (Google Wallet)
UWB No
Cellular No
Smartphone notifications Yes
Bluetooth calling Yes
Smartphone music control Yes
On-board music storage Yes
Voice assistant Gemini / Google Assistant
Links
These technical specs are correct to the best of our knowledge at the time of publishing.
