Apple Watch SE 3 vs Apple Watch Ultra 2 comparison

Compare Apple Watch SE 3
Compare Apple Watch Ultra 2
key specs
Display Size40mm49mm
Compatible OSiOS 26iOS
Dial ShapeSquareRectangle
Display TypeOLED RetinaOLED Retina
Ideal ForUnisexUnisex
general
BrandAppleApple
ModelWatch SE 3Watch Ultra 2
Release dateSeptember 9, 2025September 12, 2023
Model NameWatch SE 3Watch Ultra 2
Dial ColourStarlight, Midnight-
Dial ShapeSquareRectangle
SizeRegularLarge
TouchscreenYesYes
Interchangeable StrapYes-
Water ResistantWR50Yes
Water Resistance Depth50100m
Dial MaterialAluminum-
Ideal ForUnisexUnisex
Usage-Fitness & Outdoor
dimensions
Width34-
Height40-
Thickness10.7-
Weight (g)26.30-
product details
Compatible DeviceiPhone 11 and aboveiOS
Battery LifeUp to 24 hours36 Hours
Charger TypeWireless-
Maximum Operating Altitude-9000
Sensor-Compass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor
Notification-Yes
Battery Type-Lithium Ion
Rechargeable Battery-Yes
connectivity features
Call FunctionYesYes
BluetoothYesYes
Bluetooth Version5.4-
Wi-FiYesYes
GPSYesYes
Messaging SupportYes-
Call Features-International Emergency Calling
Other Connectivity Features-Emergency SOS
platform and storage features
Operating SystemwatchOS 26watchOS 10
Compatible Operating SystemiOS 26iOS
Processor NameApple S10S9 SiP
Internal Memory64GB-
camera and display features
Display Size40mm49mm
Display TypeOLED RetinaOLED Retina
Backlight Display-Yes
Other Display Features-LTPO OLED Always-On Retina display
fitness and watch functions
Step CountYesYes
Calorie CountYesYes
CompassYesYes
CalendarYesYes
Alarm ClockYesYes
Date & Time DisplayYesYes
Heart Rate Monitor-Yes
Altimeter-Yes
Language-English
Other Fitness Features-Blood Oxgen Sensor, ECG sensor
audio and video features
SpeakerYesYes
Gesture ControlYes-
MicrophoneYesYes
Voice ControlYes-

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