Versus Engine
Apple Watch Ultra 3 vs Apple Watch Ultra 4
Specs, price and the one trade-off that actually decides it — Apple Watch Ultra 3 against Apple Watch Ultra 4, side by side.
Cheaper to start
Tie
Both start at a similar price.
Rated higher
Apple Watch Ultra 3
9.3 vs 0.0 on our design scale.
Standout
Apple Watch Ultra 3
49mm Titanium case
Apple Watch Ultra 3
Apple's rugged watch at $799 — the outdoor answer, refined rather than reinvented.
Where it wins, where it doesn't
Pros
- Brightest, most durable Apple Watch
- Excellent multi-day battery life
- Deep integration with iOS
- Dual-frequency GPS
- High dynamic range gyroscope
- Customizable Action button
- Second-generation Ultra Wideband chip
- Support for Apple Watch For Your Kids
Cons
- Too large for smaller wrists
- Only works with iPhones
- Expensive compared to standard series
- Limited accessibility for non-iPhone users
Specifications
- ChipS10 chip with 64-bit dual-core processor 4-core Neural Engine 64GB capacity
- Connectivity / GPSL1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
- Connectivity / SatelliteL1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
- Low Power ModeUp to 72 hours in Low Power Mode
- Always-on altimeterAlways-on altimeter
- AudioThree-microphone array with beamforming and wind noise mitigation Dual speakers
- Battery / Extended Workout—
- Battery / Fast Charge—
- Battery / Max Extended Workout—
- Battery / Normal Use—
- BlackBlack
- Blood Oxygen appBlood Oxygen app
- Built-in accessibility featuresBuilt-in accessibility features supporting vision, mobility, hearing, and cognitive disabilities
- Built-in rechargeable lithium-ion batteryBuilt-in rechargeable lithium-ion battery
- Case Material—
- Charge timeUp to 80% charge in about 45 minutes
- Connectivity / 5GSupports RedCap for 5G FDD-5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71) TDD-5G NR (Bands n38, n40, n41, n53)
- Connectivity / Apple PayApple Pay
- Connectivity / Apple Watch For Your KidsSupport for Apple Watch For Your Kids
- Connectivity / BluetoothBluetooth 5.3
- Connectivity / Cellular—
- Connectivity / GymKitGymKit
- Connectivity / International roamingInternational roaming
- Connectivity / LTEFDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71) TDD-LTE (Bands 38, 39, 40, 41, 53)
- Connectivity / Ultra WidebandSecond-generation Ultra Wideband chip
- Connectivity / Wi-FiSupport for 2.4GHz and 5GHz Wi-Fi networks Wi-Fi 4 (802.11n)
- ControlsCustomizable Action button, Digital Crown with haptic feedback, Side button, Double tap and wrist flick gestures
- Customizable Action buttonCustomizable Action button
- Cycle Tracking app with retrospective ovulation estimatesCycle Tracking app with retrospective ovulation estimates
- DisplayAlways-On Retina display with wide-angle OLEDs and LTPO3 1Hz refresh Active area (422 by 514 pixels, 326 pixels per inch) Flat sapphire crystal display Up to 3000 nits peak brightness 1 nit minimum brightness Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)
- Dust resistanceDust resistance IP6X under IEC 60529
- ECG appECG app
- EN13319 recreational scuba divingEN13319 recreational scuba diving to 40m (±1m accuracy)
- Environmental Requirements / Dive operating temperature32° to 104° F (0° to 40° C)
- Environmental Requirements / Non-operating storage temperature−4° to 113° F (−20° to 45° C)
- Environmental Requirements / On-wrist operating temperature−4° to 130° F (−20° to 55° C)
- Environmental Requirements / Operating altitude−1600 feet to 29,500 feet (−500m to 9000m)
- Environmental Requirements / Operating temperature32° to 95° F (0° to 35° C)
- Environmental Requirements / Relative humidity5% to 90% noncondensing
- Fast-charge capableFast-charge capable
- FDD–5G NRFDD–5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71)
- FDD–LTEFDD–LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71)
- Features includeVoiceOver, Zoom, On/Off Labels, Reduce Transparency, Increase Contrast, Color Filters, Text Size, Bold Text, Reduce Motion, Hourly Chimes, AssistiveTouch, Button Click Speed, Touch Accommodations, Auto-Answer Calls, Type to Siri, RTT Support, Audio Volume Balance, Audio Transcription, Live Speech, Accessibility Shortcut, Mono Audio, Taptic Time, Personal Voice, Live Listen
- Fits wrists130–210mm
- Hardware and Buttons / Action buttonCustomizable Action button
- Hardware and Buttons / Digital CrownDigital Crown with haptic feedback
- Hardware and Buttons / MicrophoneThree-microphone array with beamforming and wind noise mitigation
- Hardware and Buttons / Side buttonSide button
- Hardware and Buttons / SpeakerDual speakers
- Health / Heart Rate—
- Health / Heart Sensors—
- Health / HRV—
- Heart Rate appHeart Rate app
- High and low heart rate notificationsHigh and low heart rate notifications
- High dynamic range gyroscopeHigh dynamic range gyroscope
- High-g accelerometerHigh-g accelerometer
- Hypertension notificationsHypertension notifications
- Irregular rhythm notificationsIrregular rhythm notifications
- key_features49mm Titanium case, Always-On Retina display (3000 nits), S10 SiP, Dual-frequency GPS
- L1 and L5 precision dual-frequency GPSL1 and L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
- Material and FinishTitanium case, Grade 5 Natural, Black
- Mindfulness app with state of mind trackingMindfulness app with state of mind tracking
- Multiday battery lifeMultiday battery life, up to 42 hours of normal use
- Noise appNoise app
- Operating SystemwatchOS
- Power and Battery LifeMultiday battery life, up to 42 hours of normal use Up to 72 hours in Low Power Mode Built-in rechargeable lithium-ion battery Fast-charge capable Up to 80% charge in about 45 minutes 15 minutes for up to 12 hours of normal use 5 minutes for up to 8 hours of sleep tracking
- Resolution422 by 514 pixels
- SafetySatellite connectivity (Emergency SOS, Messages, Find My) Emergency SOS International emergency calling Siren Flashlight Crash Detection Fall Detection Last Emergency Call Availability Waypoint Noise monitoring Backtrack
- Second-generation Ultra Wideband chipSecond-generation Ultra Wideband chip
- Sensors / AccelerometerHigh-g accelerometer
- Sensors / AltimeterAlways-on altimeter
- Sensors / Ambient light sensorAmbient light sensor
- Sensors / Blood oxygen sensorBlood oxygen sensor
- Sensors / CompassCompass
- Sensors / Depth gaugeDepth gauge
- Sensors / Electrical heart sensorElectrical heart sensor
- Sensors / GyroscopeHigh dynamic range gyroscope
- Sensors / Optical heart sensorThird-generation optical heart sensor
- Sensors / Temperature sensorTemperature sensor
- Sensors / Water temperature sensorWater temperature sensor
- Siri with on‐device processingSiri with on‐device processing
- Size and Weight / Depth12mm
- Size and Weight / Display Area422 by 514 pixels 1245 sq mm display area
- Size and Weight / Height49mm
- Size and Weight / Weight (black)61.8 grams
- Size and Weight / Weight (natural)61.6 grams
- Size and Weight / Width44mm
- Size and Weight / Wrist Size130–210mm wrists
- Sleep apnea notificationsSleep apnea notifications
- Sleep app including sleep stagesSleep app including sleep stages
- Sleep scoreSleep score
- Software—
- Support for 2.4GHz and 5GHz Wi-Fi networksSupport for 2.4GHz and 5GHz Wi-Fi networks
- Support for Apple Watch For Your KidsSupport for Apple Watch For Your Kids
- Supports RedCap for 5GSupports RedCap for 5G
- TDD–5G NRTDD–5G NR (Bands n38, n40, n41, n53)
- TDD–LTETDD–LTE (Bands 38, 39, 40, 41, 53)
- Tested to MIL-STD 810HTested to MIL-STD 810H against subsections for altitude, high temperature, low temperature, temperature shock, immersion, freeze with thaw, ice and freezing rain, and shock and vibration
- Third-generation optical heart sensorThird-generation optical heart sensor
- watchOSwatchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
- Water resistanceWater resistance 100m (swim, snorkel, scuba, high-speed water sports) under ISO standard 22810:2010
- Year introduced2025
Apple Watch Ultra 4
Apple's outdoor and endurance flagship watch, built around the S11 chip and up to 84 hours of battery life in Low Power Mode.
Specifications
- ChipApple S11
- Connectivity / GPSOn-device GPS, Apple's most accurate yet in a sports watch
- Connectivity / SatelliteSatellite communications
- Low Power ModeUp to 84 hours
- Always-on altimeter—
- Audio—
- Battery / Extended WorkoutUp to 25 hours with full GPS and heart rate
- Battery / Fast Charge15 minutes adds up to 18 hours
- Battery / Max Extended WorkoutUp to 45 hours for outdoor activity tracking
- Battery / Normal UseMore than 2 days, up to 50 hours
- Black—
- Blood Oxygen app—
- Built-in accessibility features—
- Built-in rechargeable lithium-ion battery—
- Case MaterialNatural or black titanium, 100% recycled titanium in the case, 45% recycled content overall
- Charge time—
- Connectivity / 5G—
- Connectivity / Apple Pay—
- Connectivity / Apple Watch For Your Kids—
- Connectivity / Bluetooth—
- Connectivity / CellularCellular capable
- Connectivity / GymKit—
- Connectivity / International roaming—
- Connectivity / LTE—
- Connectivity / Ultra Wideband—
- Connectivity / Wi-Fi—
- Controls—
- Customizable Action button—
- Cycle Tracking app with retrospective ovulation estimates—
- Display—
- Dust resistance—
- ECG app—
- EN13319 recreational scuba diving—
- Environmental Requirements / Dive operating temperature—
- Environmental Requirements / Non-operating storage temperature—
- Environmental Requirements / On-wrist operating temperature—
- Environmental Requirements / Operating altitude—
- Environmental Requirements / Operating temperature—
- Environmental Requirements / Relative humidity—
- Fast-charge capable—
- FDD–5G NR—
- FDD–LTE—
- Features include—
- Fits wrists—
- Hardware and Buttons / Action button—
- Hardware and Buttons / Digital Crown—
- Hardware and Buttons / Microphone—
- Hardware and Buttons / Side button—
- Hardware and Buttons / Speaker—
- Health / Heart RateContinuous measurement every 5 seconds, all day
- Health / Heart SensorsOptical (larger, power-efficient green LEDs) and electrical heart sensors
- Health / HRVMeasured up to 24x more often than the previous generation
- Heart Rate app—
- High and low heart rate notifications—
- High dynamic range gyroscope—
- High-g accelerometer—
- Hypertension notifications—
- Irregular rhythm notifications—
- key_features—
- L1 and L5 precision dual-frequency GPS—
- Material and Finish—
- Mindfulness app with state of mind tracking—
- Multiday battery life—
- Noise app—
- Operating System—
- Power and Battery Life—
- Resolution—
- Safety—
- Second-generation Ultra Wideband chip—
- Sensors / Accelerometer—
- Sensors / Altimeter—
- Sensors / Ambient light sensor—
- Sensors / Blood oxygen sensor—
- Sensors / Compass—
- Sensors / Depth gauge—
- Sensors / Electrical heart sensor—
- Sensors / Gyroscope—
- Sensors / Optical heart sensor—
- Sensors / Temperature sensor—
- Sensors / Water temperature sensor—
- Siri with on‐device processing—
- Size and Weight / Depth—
- Size and Weight / Display Area—
- Size and Weight / Height—
- Size and Weight / Weight (black)—
- Size and Weight / Weight (natural)—
- Size and Weight / Width—
- Size and Weight / Wrist Size—
- Sleep apnea notifications—
- Sleep app including sleep stages—
- Sleep score—
- SoftwarewatchOS 27
- Support for 2.4GHz and 5GHz Wi-Fi networks—
- Support for Apple Watch For Your Kids—
- Supports RedCap for 5G—
- TDD–5G NR—
- TDD–LTE—
- Tested to MIL-STD 810H—
- Third-generation optical heart sensor—
- watchOS—
- Water resistance—
- Year introduced—