Apple Watch Ultra 4

Name: Apple Watch Ultra 4
Brand: Apple

Apple Watch Ultra 4 is a smartwatch released in September 2026. Key specs: case size 49 mm, screen size 1.98″, AMOLED / OLED display, battery life (smartwatch mode) 2.1 days.

7.9Score

Display9.3

Battery life4.8

Health tracking8.2

Sports & outdoor3.1

Smart features7.9

Build & durability9.4

price range$850–1,050Reference price converted from EUR

Full specifications

Released: September 2026
Type: Smartwatch
Brand: Apple
Popularity: #382 of 796
Series: Apple Watch Ultra · 3 generations
Model numbers: A3579

49 mmCase size

1.98″Screen size

YesAMOLED / OLED display

2.1 daysBattery life (smartwatch mode)

10 ATMWater resistance

63 gWeight

YesNFC payments

Spec guide

How it ranks among smartwatches of 2026

Spec guide

Screen size · 1.98″Top 6%Battery life (smartwatch mode) · 2.1 daysBottom 5%Water resistance · 10 ATMTop 17%Weight · 63 gBottom 32%

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

compared with other smartwatches

Why is Watch Ultra 4 a good choice?

Water resistance: 10 ATMbetter than 96% of smartwatches

Screen size: 1.98″better than 93% of smartwatches

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

Storage: 64 GBbetter than 91% of smartwatches

Weak points

Weight: 63 gworse than 81% of smartwatches

Battery life (smartwatch mode): 2.1 daysworse than 84% of smartwatches

In rankings

#17Brightest watch screens #27Watches with the biggest screens #20Toughest watches #7Best Apple smartwatches

Specifications

Full specifications

Design & durability

Case size: 49 mm
Weight: 63 g
Thickness: 12 mm
Height: 49 mm
Width: 44 mm
Case material: Titanium
Sapphire crystal: Yes
Lens / cover glass: Sapphire crystal
Water resistance: 10 ATM
Ingress protection: IP6X
Water rating (maker): 100 m
Military-grade (MIL-STD-810): Yes
Colours: Natural, Black

Display

Screen size: 1.98″
Display technology: OLED
Panel: Retina LTPO3 OLED
AMOLED / OLED display: Yes
Always-on display: Yes
Touchscreen: Yes
Resolution (width): 422 px
Resolution (height): 514 px
Pixel density: 326 ppi
Peak brightness: 3,000 nits
LTPO display: Yes
Refresh rate: 60 Hz

Battery

Battery life (smartwatch mode): 2.1 days
Battery life (hours): 50 h
Battery capacity: 631 mAh
Battery type: Li-Ion
Wireless charging: Yes
Charged in 30 min: 53%

Health sensors

Optical heart rate: Yes
Blood oxygen (SpO2): Yes
ECG: Yes
Skin temperature: Yes
Temperature sensor: Yes
HRV tracking: Yes
Sleep tracking: Yes
Sensors: Accelerometer, gyro, always-on heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)