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Apple Watch Ultra 4 vs Apple Watch Ultra 2 comparison

 Compare Apple Watch Ultra 4
Apple Watch Ultra 4
Compare Apple Watch Ultra 2
Apple Watch Ultra 2
key specs
Display Size49mm49mm
Dial ShapeRectangleRectangle
Display TypeOLED RetinaOLED Retina
Ideal ForUnisexUnisex
Compatible OS-iOS
general
BrandAppleApple
ModelWatch Ultra 4Watch Ultra 2
Release dateSeptember 9, 2026September 12, 2023
Dial ShapeRectangleRectangle
UsageRegular, SportsFitness & Outdoor
Ideal ForUnisexUnisex
Model Name-Watch Ultra 2
Size-Large
Touchscreen-Yes
Water Resistant-Yes
Water Resistance Depth-100m
product details
SensorHealth Sensing System, optical and electrical heart sensors, blood oxygen sensor, temperature sensor, depth gauge, water temperature sensor, compass, always-on altimeter, high-g accelerometer, gyroscope, ambient light sensorCompass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor
Battery TypeRechargeable lithium-ionLithium Ion
Battery Lifeup to 50 hours36 Hours
Charger TypeMagnetic charging port-
Rechargeable BatteryYesYes
Maximum Operating Altitude-9000
Compatible Device-iOS
Notification-Yes
connectivity features
Call FunctionYesYes
BluetoothYesYes
Wi-FiYesYes
GPSYesYes
Call Features-International Emergency Calling
Other Connectivity Features-Emergency SOS
platform and storage features
Operating SystemwatchOS 27watchOS 10
Processor NameApple S11 chipS9 SiP
Internal Memory64GB-
Compatible Operating System-iOS
camera and display features
Display Resolution422 × 514-
Display Size49mm49mm
Display TypeOLED RetinaOLED Retina
Scratch ResistantSapphire crystal-
Other Display Features3000 nits peak brightness, 1 nit minimum brightness, 1Hz refresh rate, 326ppi, Night ModeLTPO OLED Always-On Retina display
Backlight Display-Yes
fitness and watch functions
Step CountYesYes
Calorie CountYesYes
Heart Rate MonitorYesYes
AltimeterYesYes
CompassYesYes
CalendarYesYes
Alarm ClockYesYes
ChronographYes-
Date & Time DisplayYesYes
LanguageEnglishEnglish
Number of Buttons3-
Other Fitness FeaturesReadiness score, HRV, heart rate zones, Training Load, Workout Effort, VO2 max, custom workouts, race route, Pacer, cadence, stride length, running power, multisport workouts, cycling metrics, swimming metrics, diving, depth gauge, water temperature, GPS, elevation tracking, Backtrack and offline mapsBlood Oxgen Sensor, ECG sensor
audio and video features
SpeakerYesYes
Gesture ControlYes-
MicrophoneYesYes
Voice ControlSiri AI-
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