Mobile / Smartwatches

AppleOutdoor smartwatch

Watch Ultra 4

Released 18 September 2026.3 Last checked 23 October 2026.

Case size: 49mm
Platform: watchOS
Display type: LTPO OLED
Battery life: 50h

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At a glance

Water resistance
10ATM1
Higher than 75% of other smartwatches.

All specs

SourceCalculatedHide missing

General

Series: Apple Watch Ultra3
Model numbers: A3579, A35804
GTIN / EAN: Not available
Announced: 9 September 20263
Status: Available5
Predecessor: Apple Watch Ultra 3 14 15
Successor: Not available
Launch price (US): $7993
Launch price (EU): €89911
Markets: AU, CA, FR, DE, IN, JP, AE, GB, US, CN3
Colours: Natural, Black1
Segment: Outdoor3
OS updates promised: Not available
Security updates until: Not available

Case

Front and side, drawn to scale.

Case size: 49mm1
Case shape: Rectangular1
Case material: Titanium1
Case material (as published): Titanium case, Grade 51
Back: Ceramic back4
Case dimensions: Height49Width44Thickness12mm(1.9 × 1.7 × 0.5 in)1
Weight (case only): 63g(2.2 oz)1
Weight with strap: Not available

Durability

Water resistance: 10ATM1
Water resistance standard: ISO 22810:20101
Dust and water rating: IP6X1
Dive rating: EN 133191
Max dive depth: 40m1
MIL-STD-810: Yes1
MIL-STD-810 tests: altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, shock and vibration1
Operating temperature: Min0Max35°C1

Display

Display type: LTPO OLED1
Display type (as published): Always-On Retina display with wide-angle OLEDs and LTPO31
Screen size: 1.98in(5 cm)7
Resolution: 422 × 514px1
Pixel density: 326ppi1
Display area: 1,245mm²1
Touchscreen: Yes2
Max refresh rate: Not available
Min refresh rate: 1Hz1
Peak brightness: 3,000nits1
Minimum brightness: 1nit1
Always-on display: Yes1
Display cover: Sapphire1
Display cover (as published): Flat sapphire crystal1

Platform

Platform: watchOS1
OS at launch: watchOS 273
Software: Not available
Latest OS: watchOS 27.0.112
Works with: iOS5
Phone requirement: iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later1
App store: Yes9
Voice assistants: Siri1
Chipset: Apple S111
Process: Not available
CPU cores: 21
CPU configuration: Not available
Max CPU clock: Not available
GPU: Not available
Low-power coprocessor: Not available

Memory

RAM: 4GB8
Storage: 64GB1

Health sensors

Heart rate sensor: Always-on optical heart sensor1
ECG capability: Yes1
Blood oxygen sensing: Yes1
Skin temperature sensing: Yes1
Blood pressure feature: Hypertension notifications1
Body composition sensor: Not available
Skin conductance (EDA): Not available
Medical clearances: Not available

Motion and environment sensors

Accelerometer: Yes1
Accelerometer range: Not available
Gyroscope: Yes1
Barometric altimeter: Yes1
Compass: Yes1
Ambient light sensor: Yes1
Depth gauge: Yes1
Depth gauge range: 40m1
Water temperature sensor: Yes1

Health and fitness

Health features: Continuous heart rate, Heart rate alerts, Irregular rhythm notifications, ECG app, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Sleep apnea notifications, Readiness score, Cycle tracking, Temperature-based ovulation, Hypertension notifications, Noise monitoring1
Fitness features: VO2 max, Training load, Running dynamics, Running power, Pool swim, Open water swim, Interval workouts, Route navigation, Trackback1
Sport profiles: Not available
Dive modes: Not available
External sensors: Power meter1

Safety

Fall detection: Yes1
Car crash detection: Yes1
Emergency SOS: Yes1
Emergency siren: Not available
Live location sharing: Not available
Dedicated LED flashlight: Not available

Positioning

Positioning: GPS (dual-frequency), Galileo, QZSS, BeiDou1
Dual-band GNSS: Yes1
Offline maps: Yes1

Connectivity

Bluetooth: Not available
Bluetooth version: 5.31
Wi-Fi: Not available
Wi-Fi standard: Wi-Fi 41
Wi-Fi bands: 2.4 GHz, 5 GHz1
Cellular: Yes1
Network: LTE, 5G1
4G bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71, 38, 39, 40, 41, 531
5G bands: n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71, n38, n40, n41, n531
NFC: Yes2
Contactless payments: Yes1
Payment services: Apple Pay1
Ultra-wideband: Yes1
Satellite: Emergency SOS, Messaging1
ANT+: Not available

Audio

Speaker: Yes1
Microphones: 31
Calls on the watch: Cellular or phone2
Music on the watch: Yes1

Controls

Buttons: 21
Named operating buttons: Action button, Side button1
Crown: Rotating haptic1
Rotating bezel: Not available
Gestures: Single tap, Double tap, Wrist flick1

Battery and charging

Battery capacity: Not available
Claimed battery life: Mode With solar Hours (h)
Smartwatch No 50
Low power No 84
GPS No 18
Extended GPS workout No 25
Max battery GPS No 45
Source1
Smartwatch mode (claimed): 50h
AOD battery life (up to): Not available
GPS mode (claimed): 18h
Solar charging: Not available
Charging method: Magnetic puck1
Charging guidance: Not available
Max charging power (watch): Not available
Fast charging: Yes1
Quick charge claim: Charge time15 minUse time18 h1
Charge 0 to 80% (claimed): 45min1
Full charge time (claimed): 75min10

Mode	With solar	Hours (h)
Smartwatch	No	50
Low power	No	84
GPS	No	18
Extended GPS workout	No	25
Max battery GPS	No	45

Measured

Peak brightness (measured): Not available
Battery life (measured): Not available
Battery tests (measured): Not available
Full charge time (measured): 105min13

Strap

Lug width: Not available
Quick-release strap: Not available
Strap system: Not available
Strap material: Not available
Strap: Not available
Strap sizes: Wrist (min) (mm) Wrist (max) (mm)
130 210
Source1

Wrist (min) (mm)	Wrist (max) (mm)
130	210

Regulatory

We could not find any of these 4 fields. Show them

FCC ID: Not available
SAR limb (US): Not available
SAR limb (EU): Not available
Other certifications: Not available

In the box

In the box: Apple Watch Ultra 4, Band, Apple Watch Magnetic Fast Charger to USB-C Cable (1m)1
Power adapter in box: No1

Warranty

Manufacturer warranty (source market): 1year6

Compare with

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Variants

Each variant lists only what differs from the specs above.

Model number	Markets	Colours	Weight (case only)
A3579	Not available	Natural	63 g
A3579	Not available	Black	63.1 g
A3580	CN	Natural	63 g
A3580	CN	Black	63.1 g

Sources

We read 15 sources for this smartwatch. The numbers match the markers in the sheet.

Maker product pageapple.com/apple-watch-ultra-4/specs
Read 30 September 2026Backs 82 fields
Maker product pageapple.com/apple-watch-ultra-4
Read 30 September 2026Backs 4 fields
Press releaseapple.com/newsroom/2026/09/apple-unveils-apple-watch-ultra-4
Read 30 September 2026Backs 7 fields
Maker product pagesupport.apple.com/en-us/108056
Read 8 October 2026Backs 3 fields
Maker product pageapple.com/shop/buy-watch/apple-watch-ultra
Read 30 September 2026Backs 2 fields
Maker product pageapple.com/legal/warranty/products/warranty-us.html
Read 30 September 2026Backs 1 field
Spec databasegsmarena.com/apple_watch_ultra_4-14935.php
Read 30 September 2026Backs 1 field
Press articlemacrumors.com/2026/09/10/apple-watch-series-12-ultra-4-increased-ram
Read 30 September 2026Backs 1 field
Owner's manualsupport.apple.com/en-gb/guide/watch/welcome/27/watchos/27
Read 30 September 2026Backs 2 fields
Maker product pageapple.com/uk/watch/battery
Read 30 September 2026Backs 1 field
Press releaseimages.apple.com/de/newsroom/2026/09/apple-unveils-apple-watch-ultra-4
Read 30 September 2026Backs 1 field
Maker product pagesupport.apple.com/en-us/100100
Read 30 September 2026Backs 1 field
Reviewgigazine.net/gsc_news/en/20260927-apple-watch-ultra-4-review
Read 8 October 2026Backs 1 field
Reviewtechradar.com/health-fitness/smartwatches/apple-watch-ultra-4-vs-apple-watch-ultra-3-whats-changed-and-should-you-upgrade
Read 23 October 2026Backs 1 field
Press articlemacrumors.com/2026/09/16/apple-watch-ultra-3-vs-ultra-4
Read 23 October 2026Backs 1 field

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PredecessorApple Watch Ultra 3