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Apple Watch Ultra 4 49mm Black (Black Milanese Strap L)
Network
| Technology | GPS + Cellular |
|---|---|
| 5G Technology | 5G RedCap |
| 5G Bands | FDD 5G NR: n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71 TDD 5G NR: n38, n40, n41, n53 |
| 4G Bands | FDD LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71 TDD LTE: 38, 39, 40, 41, 53 |
| International Roaming | Supported |
| Satellite Connectivity | Satellite communications for Emergency SOS, Messages and Find My |
Body
| Dimensions | 49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in) |
|---|---|
| Weight | 63.1 g |
| Build | Grade 5 titanium case, Black finish, flat sapphire crystal display |
| Case Material | Grade 5 titanium |
| Case Finish | Black |
| Wrist Compatibility | 130–210 mm |
| Controls | Customizable Action button, Digital Crown with haptic feedback, side button, single tap, double tap and wrist flick gestures |
| Hardware | Microphone, speaker, Health Sensing System, Siren/Speaker, GPS/cellular/satellite antennas, Digital Crown, depth gauge, water temperature sensor and altimeter |
| Band | Black Milanese Strap, L as specified in the product title |
Display
| Type | Always-On Retina display, wide-angle OLED, LTPO3 |
|---|---|
| Size | 49mm case, 1245 sq mm display area |
| Resolution | 422 x 514 pixels |
| Pixel Density | 326 ppi |
| Refresh Rate | 1Hz |
| Brightness | 3000 nits peak, 1 nit minimum |
| Protection | Flat sapphire crystal display |
| Night Mode | Supported for Modular Ultra, Wayfinder and Orienteering watch faces |
Platform
| OS | watchOS |
|---|---|
| Chipset | Apple S11 SiP |
| CPU | 64-bit dual-core processor |
| Neural Engine | 4-core Neural Engine |
| AI | Apple Intelligence and Siri AI |
| Audio Intelligence | Live Rewind, Siri Recap, Shazam and Sound Recognition |
Memory
| Internal | 64GB |
|---|---|
| Card Slot | No |
Health Sensors
| Electrical Heart Sensor | Third-generation electrical heart sensor |
|---|---|
| Optical Heart Sensor | Always-on optical heart sensor |
| Blood Oxygen Sensor | Yes |
| Temperature Sensor | Yes |
| Depth Gauge | Yes |
| Water Temperature Sensor | Yes |
| Accelerometer | High-g accelerometer |
| Gyroscope | High dynamic range gyroscope |
| Altimeter | Always-on altimeter |
| Compass | Yes |
| Ambient Light Sensor | Yes |
Health and Wellness
| Readiness | Readiness app |
|---|---|
| Vitals | Heart rate, respiratory rate, wrist temperature, blood oxygen, sleep duration and heart rate variability (HRV) |
| Blood Oxygen | Blood Oxygen app |
| ECG | ECG app |
| Heart Rate | Heart Rate app with high and low heart rate notifications |
| Recovery HRV | Supported |
| Irregular Rhythm Notifications | Supported |
| Cycle Tracking | Advanced Cycle Tracking with fertile window estimates, retrospective ovulation estimates and perimenopause and menopause support |
| Sleep Tracking | Sleep stages, sleep score and sleep apnea notifications |
| Hypertension Notifications | Supported |
| Medications | Medications app |
| Mindfulness | Mindfulness app with state of mind tracking |
| Noise Monitoring | Noise app |
Fitness
| Workout Tracking | Custom workouts, customizable Workout Views, Training Load and workout effort tracking |
|---|---|
| Running | VO2 max, Race Route, Pacer, Precision Start, cadence, stride length, ground contact time, vertical oscillation, running power and automatic track detection |
| Hiking | Compass bearing, incline, elevation, coordinates, custom waypoints, Backtrack, offline maps and elevation alerts |
| Cycling | Speed, elevation, distance, Bluetooth power meters, Functional Threshold Power, cadence, Live Activity, heart rate zones and power zones |
| Swimming | Pool and open-water swimming, splits, automatic sets, SWOLF, stroke count, water temperature, pace, distance, heart rate and laps |
| Diving | Recreational scuba diving to 40m, Dive Computer app, automatic launch at 1m, depth duration, GPS entry/exit points, depth gauge and water temperature |
| Other Workouts | Skiing, snowboarding, outdoor rowing, paddling, golf, walking, elliptical, rower, stair stepper, HIIT, yoga, functional strength training, dance, Pilates, tai chi, wheelchair, kickboxing and multisport |
Comms
| WLAN | Wi-Fi 4 (802.11n), 2.4GHz and 5GHz |
|---|---|
| Bluetooth | Bluetooth 5.3 |
| Positioning | Precision dual-frequency GPS, GPS, Galileo, QZSS and BeiDou |
| NFC | Yes, Apple Pay |
| Ultra Wideband | Second-generation Ultra Wideband chip |
| Cellular | 5G RedCap and LTE |
| Satellite | Satellite communications for Emergency SOS, Messages and Find My |
| GymKit | Supported |
Sound
| Loudspeaker | Dual speakers |
|---|---|
| Microphone | Three-microphone array with beamforming and wind noise mitigation |
| Siren | Built-in siren |
| Media Playback | Supported |
Features
| Sensors | Third-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, temperature sensor, depth gauge, water temperature sensor, compass, always-on altimeter, high-g accelerometer, high dynamic range gyroscope, ambient light sensor |
|---|---|
| Action Button | Customizable physical Action button |
| Digital Crown | Digital Crown with haptic feedback |
| Gestures | Single tap, double tap and wrist flick |
| Siri | Siri powered by Apple Intelligence |
| Flashlight | Built-in flashlight |
| Find My | Supported, including satellite connectivity features |
Battery
| Type | Built-in rechargeable lithium-ion battery |
|---|---|
| Normal Use | Up to 50 hours |
| Low Power Mode | Up to 84 hours |
| Outdoor Workout | Up to 18 hours |
| Extended Workout | Up to 25 hours |
| Max Extended Workout | Up to 45 hours |
| Charging | Fast-charge capable |
| Fast Charging | Up to 80% charge in about 45 minutes |
| 15-Minute Charge | Up to 18 hours of normal use |
| 5-Minute Charge | Up to 10 hours of sleep tracking |
| Charger | Apple Watch Magnetic Fast Charger to USB-C Cable (1m) |
Safety
| Emergency SOS | Supported, including satellite communications |
|---|---|
| International Emergency Calling | Supported |
| Fall Detection | Supported |
| Crash Detection | Supported |
| Siren | Built-in siren |
| Flashlight | Supported |
| Backtrack | Supported |
| Check In | Supported |
| Last Emergency Call Availability Waypoint | Supported |
Durability
| Water Resistance | 100 metres under ISO 22810:2010; suitable for swimming, snorkeling, scuba diving and high-speed water sports |
|---|---|
| Dust Resistance | IP6X |
| Diving | EN13319 recreational scuba diving to 40 metres (±1 metre accuracy) |
| Military Standard | MIL-STD-810H tested for selected subsections including altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, shock and vibration |
| On-Wrist Operating Temperature | -20° to 55° C |
| Operating Temperature | 0° to 35° C |
| Dive Operating Temperature | 0° to 40° C |
| Storage Temperature | -20° to 45° C |
| Humidity | 5% to 90% non-condensing |
| Operating Altitude | -500 to 9000 metres |
Materials and Sustainability
| Recycled Content | 45% recycled content |
|---|---|
| Case | 100% recycled titanium |
| Battery | 100% recycled cobalt and 95% recycled lithium |
| Taptic Engine | 100% recycled copper wire and recycled tungsten; 80% recycled steel in battery enclosure and Taptic Engine components |
| Printed Circuit Boards | 100% recycled gold plating and tin solder |
| Packaging | 100% fiber-based packaging |
| Manufacturing Energy | 100% manufacturing electricity sourced from renewable electricity |
Compatibility
| iPhone Compatibility | iPhone 11 or later, including iPhone SE (2nd generation or later) |
|---|---|
| Required iOS | iOS 27 or later |
General
| Product | Apple Watch Ultra 4 |
|---|---|
| Generation | 4th generation |
| Year Introduced | 2026 |
| Case Size | 49mm |
| Case Color | Black |
| Case Material | Grade 5 titanium |
| Model Type | GPS + Cellular |
| Requested Strap | Black Milanese Strap L |
In the Box
| Watch | Apple Watch Ultra 4 |
|---|---|
| Band | Black Milanese Strap, L as specified in the product listing |
| Charger | Apple Watch Magnetic Fast Charger to USB-C Cable (1m) |
Identifiers
| MPN | MJAX4QR/A |
|---|---|
| GTIN / EAN / UPC | 195951216959 |
