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Apple Watch Ultra 4 Cellular 49mm Black Tit./Translucent Black Ocean Band
Network
| Technology | GSM / HSPA / LTE / 5G - GPS + Cellular / 5G NR FDD and TDD + LTE + UMTS / Cellular & Wi-Fi / 5G |
|---|---|
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - eSIM |
| 3G Bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International HSDPA 850 / 900 / 2100 / UMTS |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71 - International 1, 3, 5, 8, 28, 40, 41 - Regional bands LTE Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 32, 38, 40, 41, 42, 66, 71 |
| 5G Bands | 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA - International 1, 3, 5, 8, 28, 40, 78 SA/NSA - 5G NR FDD, 5G NR TDD, 5G RedCap |
| Speed | HSPA, LTE, 5G - 5G RedCap and LTE, UMTS |
| SIM | eSIM only / eSIM / Cellular or Wi-Fi Only Cellular & Wi-Fi / SIM Card Type eSIM only |
| Satellite | Yes - Emergency SOS via satellite, Messages via satellite, Find My via satellite - 2 years included - Exclusive to Ultra 3 and later |
Body
| Dimensions | 49 x 44 x 14.4 mm (1.93 x 1.73 x 0.57 in) / Depth 0.472 inches / Height 1.929 Inches Width 1.732 Inches / 49mm case 49 x 44 x 14.4mm |
|---|---|
| Weight | 63.1 Grams / 61.8 g / 2.23 Ounces / 63.1g / 61.8g titanium case |
| Build | Titanium frame, sapphire front, ceramic back / Titanium case, Silicone ocean band / Titanium case with sapphire front crystal / Materials Titanium case, Silicone ocean band |
| SIM | eSIM IP6X certified + MIL-STD 810H Water resistant 100m (swim, snorkel, scuba, high-speed water sports) under ISO 22810:2010 EN13319 recreational scuba diving to 40m (~1m accuracy) / Depth gauge to 40 metres with +/-1m accuracy / Depth gauge to 40 meters Water temperature sensor Water resistance 100 m (328 Ft / 328 Ft Maximum Depth) Dust resistance IP6X under IEC 60529 Tested to MIL-STD 810H standard Maximum Operating Ambient Temperature 55°C Minimum -20°C Max Altitude Operating 9000m Corrosion resistant titanium Drop resistant MIL-STD-810H compliant * does not guarantee ruggedness but MIL-STD 810H tested |
| Case Material | Titanium - Black Titanium Case / Natural Titanium also available / Material Titanium / Smart Watch Case Material Titanium |
| Case Color | Black - Supplier Colour Black Titanium / True Color Black / Colour Black / Black Titanium / Natural Titanium option |
| Band Material | Ocean Band - Fluoroelastomer / Silicone Ocean Band / Fluoroelastomer / Smart Watch Band Material Ocean Band / Material Watch Band Fluoroelastomer |
| Band Color | Translucent Black / Black / Band Colour Black / Smart Watch Band Color Translucent Black |
| Band Type | Ocean Band - Translucent Black Ocean Band / Stretchy rubber strap with titanium buckle and adjustable loop / Fits 130-210mm wrists |
| Band Size | One Size Fits Most - One size adjustable / 130-210mm wrists / Ocean Band |
Display
| Type | LTPO3 OLED, Always-On Retina display with wide-angle OLEDs and LTPO3, 1Hz refresh, 1 nit minimum brightness, 3000 nits peak brightness / OLED / Always-On Retina display with wide-angle OLEDs and LTPO3 / Wide-angle OLED and LTPO3 / Always-On Retina |
|---|---|
| Size | 1.92 inches, 2.0 inches quoted / 49mm / 422 x 514 pixels, 1245mm2 display area / 422x514px |
| Resolution | 422 x 514 pixels (~326 ppi density) / 422 x 514 / Display Resolution 422 x 514px, 1,245mm2 display area / 422 x 514px |
| Protection | Sapphire Crystal / Smart Watch Screen Material Sapphire Crystal / Flat sapphire front crystal / Ceramic Shield 2 / Super durable crack-resistant sapphire crystal display |
Platform
| OS | watchOS 27 / watchOS - Operating System watchOS / Operating System Compatibility watchOS / Watch OS / watchOS 27, Siri AI, Audio Intelligence |
|---|---|
| Chipset | Apple S11 SiP / S11 chip with 64-bit dual-core processor, 4-core Neural Engine, W3 wireless chip / S11 / Processor S11 chip with 64 bit dual core processor, 4 core Neural Engine, Audio Intelligence / Processor model S11 |
| CPU | Octa-core? Dual-core 64-bit + W3 / Dual-core 64-bit / 64-bit dual-core processor |
| GPU | PowerVR - 4-core Neural Engine |
Memory
| Card Slot | No - Not expandable |
|---|---|
| Internal | 64GB / 64 gigabytes / Capacity 64GB / Storage Capacity 64GB / Built-in Storage Yes / Built-in Storage 64GB |
Main Camera
| Single | No |
|---|
Selfie Camera
| Single | No |
|---|
Sound
| Loudspeaker | Yes, Dual speakers / Three-microphone array with beamforming and wind noise mitigation, Dual speakers, Media playback, Siren / Dual speakers / 86-decibel siren |
|---|---|
| 3.5mm Jack | No Media playback, Siren, Three-microphone array |
| Microphone | Three-microphone array with beamforming and wind noise mitigation / Built-In Microphone Yes |
Comms
| WLAN | Wi-Fi 802.11 b/g/n dual-band 2.4GHz and 5GHz / Wi-Fi 4 (802.11n) 2.4GHz and 5GHz / Support for 2.4GHz and 5GHz WiFi, WiFi 4 (802.11n) / Wi-Fi 4 (802.11n) |
|---|---|
| Bluetooth | 5.3, A2DP, LE / Bluetooth v5.3 / Bluetooth 5.3 / Bluetooth, Wi-Fi / Wireless Technology Bluetooth, Wi-Fi |
| Positioning | GPS, GLONASS, BDS, GALILEO / Precision dual-frequency GPS L1 and L5 - GPS, Galileo, QZSS and BeiDou / Precision dual-frequency GPS (GPS, Galileo, QZSS and BeiDou) / Dual-frequency GPS most accurate GPS in a sports watch |
| NFC | Yes / NFC Apple Pay / Apple Pay |
| Infrared Port | No |
| Radio | No |
| USB | No - Magnetic Fast Charger to USB-C Cable (1m) |
| Other | Second-generation Ultra Wideband chip / Ultra Wideband (UWB) Second-gen / Ultra Wideband (UWB) / Second-generation Ultra Wideband chip |
Features
| Sensors | 3rd gen Electrical Heart, Always-on Optical Heart, Blood Oxygen, Temperature, Compass, Always-on altimeter, High-g accelerometer up to 32 g, High-dynamic-range gyroscope, Ambient light, Depth gauge to 40 metres, Water temperature / Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen / Barometric Altimeter Yes, Blood Oxygen Yes, Electrocardiogram (ECG) Yes, Temperature Sensors Yes, Fall Detection Yes, Accelerometer Yes, Gyroscope Yes |
|---|---|
| Safety | Emergency SOS, International emergency calling, Emergency SOS via satellite, Messages via satellite, Find My via satellite, Siren 86dB audible up to 180m, Fall Detection, Crash Detection, Last Emergency Call Availability Waypoint, Flashlight, Backtrack, Noise Monitoring, Check In, Audio Intelligence |
| Controls | Digital Crown, Action button programmable, Side button, Double tap and wrist flick gestures, Apple Intelligence and Siri AI, Ceramic Shield 2 |
| Health | Vitals app, Blood Oxygen app, ECG app, Recovery HRV, Advanced Cycle Tracking, Medications, Noise, Sleep, Mindfulness app with state-of-mind tracking, Readiness, Readiness score, Training Load, Custom Workouts, Heart Rate Zones, Pacer, Multi-day battery |
Battery
| Type | Li-Ion 564 mAh - Non-removable / 564 mAh / Lithium Ion 1 Non-Universal Lithium Ion Required Installed |
|---|---|
| Charging | Magnetic Fast Charger to USB-C Cable (1m) / Up to 80% charge in about 45 minutes? Up to 80% in about 30 minutes / Up to 80% charge in about 30 minutes / Fast-charge 15 minutes for up to 18 hours use / Fast charging |
| Battery Life | Up to 50 hours normal use? 36 hours normal use / 72 hours Low Power Mode / Up to 36 hours normal use, up to 72 hours low power mode, up to 45 hours Max Extended Workout / Up to 50 hours Usage Time / 2+ Day Battery Life / Maximum Battery Charge Life 18 Hours variant listing but real 36h / Up to 45 hours Max Extended Workout tracking |
Our Tests
| Performance | Apple S11 + 4-core Neural Engine, W3 wireless chip, U2 Ultra Wideband |
|---|---|
| Display | 3000 nits peak brightness (measured) / Peak Brightness 3000 Nits / 1 nit minimum / Always-On Retina / 3000 Nits / Display Resolution 422 x 514px |
| Loudspeaker | Dual speakers + Siren |
| Battery | Active use score 36h normal / 72h low power / 50h usage time official listing |
| Announcement | Announced September 9, 2026 / Released September 18, 2026 / Street Date September 18, 2026 / Model Number MJAY4X/A / MJAY4LS/A / Model MJAY4LS/A / Model MJAY4X/A |
Eu Label
| In Box | Apple Watch Ultra 4, Translucent Black Ocean Band, Apple Watch Magnetic Fast Charger to USB-C Cable (1m) / Whats In The Box Apple Watch Ultra 4 Band Apple Watch Magnetic Fast Charger to USB-C Cable (1m) |
|---|---|
| Price | - |
| Compatibility | Compatible Phones iPhone 11 / iPhone SE 2nd Gen or later with iOS 27 / Operating System Compatibility Apple iOS / Requires iPhone 11 or later with iOS 27 |
Identifiers
| MPN | MJAY4ET/A |
|---|---|
| GTIN / EAN / UPC | 195951217062 |
