OnePlusNewSmartwatch

OnePlus Watch 4

Name: OnePlus Watch 4
Brand: OnePlus

OnePlus Watch 4 is a smartwatch released in April 2026. Key specs: case size 47 mm, screen size 1.5″, AMOLED / OLED display, battery life (smartwatch mode) 5 days.

7.4Score

Display7.5

Health tracking8.5

Sports & outdoor3.1

Smart features5.7

Build & durability5.9

price range$215–265Reference price converted from EUR

Full specifications

Released: April 2026
Type: Smartwatch
Brand: OnePlus
Popularity: #462 of 891
Series: OnePlus Watch · 4 generations

47 mmCase size

1.5″Screen size

YesAMOLED / OLED display

5 daysBattery life (smartwatch mode)

5 ATMWater resistance

43 gWeight

YesNFC payments

Spec guide

How it ranks among smartwatches of 2026

Spec guide

Screen size · 1.5″Top 35%Battery life (smartwatch mode) · 5 daysBottom 16%Water resistance · 5 ATMBottom 39%Weight · 43 gTop 39%

Compared with smartwatches released in 2026. Bars show the share of models it beats.

compared with other smartwatches

Why is Watch 4 a good choice?

Peak brightness: 3,000 nitsbetter than 84% of smartwatches

Weak points

Water resistance: 5 ATMworse than 89% of smartwatches

In rankings

#21Brightest watch screens #30Best smartwatches from $200 to $400

Specifications

Full specifications

Design & durability

Case size: 47 mm
Weight: 43 g
Thickness: 11 mm
Height: 47.4 mm
Width: 47.4 mm
Case material: Titanium
Sapphire crystal: Yes
Lens / cover glass: Sapphire crystal glass
Strap material: Fluorelastomer
Water resistance: 5 ATM
Ingress protection: IP68
Water resistance (IPx): IPx8
Water rating (maker): 50 m / 5 bar / 5 ATM
Military-grade (MIL-STD-810): Yes
Colours: Midnight Titanium, Evergreen Titanium

Display

Screen size: 1.5″
Display technology: AMOLED
Panel: LTPO AMOLED
AMOLED / OLED display: Yes
Always-on display: Yes
Touchscreen: Yes
Resolution (width): 466 px
Resolution (height): 466 px
Pixel density: 310 ppi
Peak brightness: 3,000 nits
LTPO display: Yes
Refresh rate: 60 Hz

Battery

Battery life (smartwatch mode): 5 days
Battery capacity: 646 mAh
Battery type: Si/C
Wireless charging: No

Health sensors

Optical heart rate: Yes
Blood oxygen (SpO2): Yes
ECG: Yes
Skin temperature: Yes
Temperature sensor: Yes
Sleep tracking: Yes
Sensors: Accelerometer, gyro, barometer, compass, heart rate, SpO2, thermometer (skin temperature)