Apple · Apple Watch

Watch Ultra 3

Released September 2025

The Apple Watch Ultra 3 is Apple's 2025 49 mm titanium sports and adventure watch, suited to iPhone owners who run, hike or dive and want dual-frequency GPS, satellite SOS and close to two days of battery life.

Type
Smart and sports
Sizes
49 mm
Movement
–
Power reserve
–
Display
LTPO OLED
Battery
42 h
Water
100 m
GPS
Dual-band
Weight
61.6 g

What reviewers say

Reviewers agree it is an excellent adventure and everyday watch, with a larger display, very long battery life and accurate fitness tracking. The main reservation is that it is a small upgrade: The Verge doubted most people would notice the 5G and satellite additions, and TechRadar noted older Ultras also get the new health and fitness features.

From techradar.com and theverge.com

Display

Case sizes
49 mm
Panel
LTPO OLED
Peak brightness
3,000 nits
Always-on display
Yes
Display detail
Always-On Retina display with wide-angle OLEDs and LTPO3; 1Hz refresh; 422 x 514 pixels at 326 ppi; 1,245 sq mm display area; 1 nit minimum brightness; Night Mode for Ultra watch faces
Screen protection
Flat sapphire crystal front

Health and fitness

ECG
Yes
Blood oxygen
Yes
Skin temperature
Yes
Sleep apnoea alerts
Yes
High blood pressure alerts
Yes
Body composition
No
Fall detection
Yes
Crash detection
Yes
GPS
Dual-band (L1 and L5)
Water resistance
100 m
Sensors
Electrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor; depth gauge to 40 m; water temperature sensor; compass; always-on altimeter (–500 m to 9,000 m); high-g accelerometer; high dynamic range gyroscope; ambient light sensor
Health features
ECG app; Blood Oxygen app; hypertension notifications; sleep apnoea notifications; irregular rhythm notifications; high and low heart rate notifications; Vitals app; sleep stages and sleep score; wrist temperature; Cycle Tracking with retrospective ovulation estimates; Medications; Mindfulness with state of mind tracking; Noise
Fitness features
Customisable Action button with Precision Start; custom workouts; Training Load and Workout Effort; customisable heart rate zones; VO2 max; Race Route; Pacer; stride length, ground contact time, cadence, power and vertical oscillation; multisport workouts; offline maps with custom route creation; elevation alerts; Backtrack; swimming with water temperature; recreational diving to 40 m with third-party dive computer apps; cycling with power meters; GymKit
Safety features
Emergency SOS and Find My via satellite; Emergency SOS; international emergency calling; Siren; Crash Detection; Fall Detection; Last Emergency Call Availability Waypoint; torch; noise monitoring; Backtrack

Battery and connections

Battery life (maker's claim)
Up to 42 hours
In low-power mode
Up to 3 days
Mobile data option
Yes
Works with
iPhone
Chip
S10
Storage
64 GB
Battery life detail
Up to 42 hours of normal use; up to 72 hours in Low Power Mode
Charging
Fast charging to 80% in about 45 minutes; 15 minutes for up to 12 hours of normal use; 5 minutes for up to 8 hours of sleep tracking
Connectivity
GPS + Cellular only (model A3281) with 5G RedCap and LTE; satellite connectivity; Wi-Fi 4 (802.11n) at 2.4GHz and 5GHz; Bluetooth 5.3; second-generation Ultra Wideband chip; NFC for Apple Pay; L1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou)

Design

Weight (lightest version)
61.6 g
Software
watchOS
Case materials
Grade 5 titanium case (100% recycled titanium) with ceramic and sapphire crystal back; water resistant to 100 m (ISO 22810:2010); EN13319 recreational diving to 40 m; IP6X dust resistant; tested to MIL-STD 810H
Size
49 x 44 x 12 mm; 61.6 g (natural) or 61.8 g (black)
Bands
Fits 130–210 mm wrists
Colours
Natural or Black titanium
In the box
Apple Watch Ultra 3, strap, Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)

Pros and cons

Pros

  • Up to 42 hours of normal use and 72 hours in Low Power Mode
  • Dual-frequency (L1 and L5) GPS and Emergency SOS and Find My via satellite
  • 3,000-nit display under a flat sapphire front; 100 m water resistance and EN13319 dive certification to 40 m

Cons

  • One size only, 49 mm and 61.6 g
  • Replaced by Ultra 4 in September 2026, which lasts up to 50 hours
  • Works only with an iPhone

Closest rivals

Model
TypeSizesMovementPower reserveDisplayBatteryWaterGPSWeightReleased
Smart and sports49 mm––LTPO OLED50 h100 mDual-band63 gSept 2026
Smart and sports49 mm––LTPO OLED36 h100 mDual-band61.4 gSept 2023
Smart and sports49 mm––LTPO OLED36 h100 mDual-band61.3 gSept 2022

Newer model: Watch Ultra 4.

Sources

  1. support.apple.com/en-gb/125095
  2. apple.com/uk/watch/compare
  3. apple.com/uk/newsroom/2025/09/introducing-apple-watch-ultra-3
  4. apple.com/uk/watchos/feature-availability

Photo: Apple Newsroom — Images-of-Apple-Watch-Ultra-3-250909/Apple-Watch-Ultra-3-hero-250909.jpg

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