Watch Ultra 4 GPS + Cellular 49mm Titanium Case Titanium Milanese Loop M

The longest battery life of any Apple Watch. Now with up to 45 hours of Max Extended Workout tracking. All-new Health Sensing System delivers the most accurate heart rate sensing in a wearable. A new personal readiness score tells you whether to rest or put yourself to the test. More frequent heart rate variability, or HRV, readings help provide insights on stress and recovery. In the redesigned Health app, learn which habits are influencing your Health Age and how to improve them. Make every day more effortless with Siri AI.4 And seamless with Audio Intelligence, powered by the S11 chip. Apple Watch Ultra 4 features built‑in satellite communications that help you stay connected and safe off the grid. A battery you. can’t outrun.. Display. Display type. Digital. Display resolution. 422 x 514 pixels. Touchscreen. Yes. Display technology marketing name. Retina. Display technology. OLED. Display area. 1245 mm². Display brightness (min). 1 cd/m². Display brightness. 3000 cd/m². Minimum refresh rate. 1 Hz. Pixel density. 326 ppi. Always-on display. Yes. Colour display. Yes. Rounded display corners. Yes. Watch glass type. Sapphire. Processor. Neural processor unit (NPU). Apple Neural Engine (ANE). Neural processor unit (NPU) cores. 4. Performance. Built-in microphone. Yes. Built-in speaker(s). Yes. Built-in camera. No. FM radio. No. Mobile operating systems supported. iOS. Operating system installed. watchOS 27. Flash memory. 64 GB. Processor manufacturer. Apple. Processor model. S11. Processor cores. 2. 64-bit computing. Yes. Crash detection. Yes. Fall detection. Yes. Health Sensing System. Yes. Check In function. Yes. Built-in flashlight. Yes. Audio Intelligence. Live Rewind, Siri Recap, Sound Recognition, Shazam. Backtrack. Yes. Noise monitoring. Yes. Design. Market positioning. Smartwatch. Watch case size. 49 mm. Watch case colour. Titanium. Watch case material. Titanium. Band colour. Titanium. Band material. Titanium. Band size. M. Wrist size range. 155 - 185 mm. Shape. Rectangular. Magnetic charging connector. Yes. International Protection (IP) code. IP6X. Removable strap. Yes. Protection features. Dust resistant, Water resistant, Waterproof. Waterproof up to. 100 m. Features. Accessibility features. Accessibility Shortcut, AssistiveTouch, Audio Volume Balance, Auto Transcription, Auto-Answer Calls, Bold Text, Button Click Speed, Color Filters, Hourly Chimes, Increase Contrast, Live Listen, Live Speech, Mono Audio, On/Off Labels, Personal Voice, RTT Support, Reduce Motion, Reduce Transparency, Taptic Time, Text Size, Touch Accommodations, Type to Siri, VoiceOver, Zoom, Sound Recognition, Voice Isolation. Heart rate monitor. Yes. Heart rate sensor type. Electrical, Optical. Heart rate measuring. Automatic, Manual. Blood oxygen sensor. Yes. Depth gauge sensor. Yes. Sleep apnea detection. Yes. Distance travelled. Yes. Pedometer. Yes. Accelerometer. Yes. Gyroscope. Yes. Activity tracker. Yes. Multisport mode. Yes. Quality of sleep. Yes. Hypertension notifications. Yes. Irregular rhythm notifications. Yes. Double tap gesture. Yes. SOS alert function. Yes. Personal info management (PIM). SOS. Apple Intelligence. Yes. Running dynamics. Yes. Virtual pacer function. Yes. Water temperature sensor. Yes. Haptic feedback. Yes. Refurbished. No. Workout tracking. Yes. Virtual assistant. Apple Siri. Recommended activity. Cooldown, Cycling, Dance, Elliptical, Golf, HIIT, Hiking, Kickboxing, Outdoor rowing, Paddling, Pilates, Running, Skiing, Snowboarding, Stair stepper, Swimming, Tai Chi, Walking, Wheelchair, Yoga, Rowing, Core training, Diving. Skin temperature sensor. Yes. Electronic compass. Yes. Ambient light sensor. Yes. Altimeter. Yes. Military standard. MIL-STD-810H. Compatible products. iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later. Network. Mobile network connection. Yes. Mobile network generation. 5G. 4G standard. LTE-TDD & LTE-FDD. 5G standard. Sub6 TDD, Sub6 FDD, NR. GPS (satellite). Yes. BeiDou. Yes. Galileo. Yes. Quasi-Zenith Satellite System (QZSS). Yes. Ports & interfaces. USB port. No. Wi-Fi. Yes. Wi-Fi standards. Wi-Fi 4 (802.11n). Bluetooth. Yes. Bluetooth version. 5.3. Bluetooth Low Energy (BLE). Yes. Near Field Communication (NFC). Yes. Headphone connectivity. Bluetooth. Power. Battery type. Built-in battery. Battery technology. Lithium-Ion (Li-Ion). Battery life (max). 50 h. Battery life (power save mode). 84 h. Fast charging. Yes. Wireless charging. Yes. Operational conditions. Operating temperature (T-T). 0 - 35 °C. Storage temperature (T-T). -20 - 45 °C. Operating relative humidity (H-H). 5 - 90%. Operating altitude. -500 - 9000 m. General. Product series. Ultra 4. Product family. Watch. Weight & dimensions. Width. 44 mm. Depth. 49 mm. Thickness. 1.2 cm. Weight. 63 g. Packaging data. Package width. 214 mm. Package depth. 118 mm. Package height. 38 mm. Package weight. 448 g. Packaging content. Cables included. Magnetic Fast Charger to USB‑C