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Top specifications
eSIM compatibility
No
Heart rate sensor
Yes
Usage time
Up to 18 hours
Device warranty
24 months
Design
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Interchangeable strap
Yes
Sapphire crystal glass
Yes
Battery
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Usage time
Up to 18 hours
Removable battery
No
Body
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Dimensions (mm)
41mm: 41x35x10.7
45mm: 45x38x10.7
Weight (g)
41mm - Aluminum: 32
Stainless Steel: 42.3
Titanium: 37.0
45mm - Aluminum: 38.8
Stainless Steel: 51.5
Titanium: 45.1
Connectivity
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Wi-Fi
Yes
Bluetooth
Yes
Display
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Display type
Retina display
Network
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VoLTE (4G calling in UK)
Yes
VoLTE Roaming (4G calling abroad)
Yes
Messaging
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Text messages
Yes
Platform
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Operating system
watchOS 8
Sensors
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Accelerometer
Yes
Digital compass
Yes
Gyroscope
Yes
Ambient light sensor
Yes
Heart rate sensor
Yes
Memory
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Device memory
32GB
Features
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Speaker and microphone
Yes
App notifications
Yes
Messages & calls
Yes
Siri
Yes
Apple Pay
Yes
Navigation
Yes
Activity app
Yes
eSIM compatibility
No
Water resistant
Yes
Warranty
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Device warranty
24 months
Face features
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Weather
Yes
World clock
Yes
Alarm
Yes
Custom faces
Yes
Calendar
Yes
Stopwatch
Yes
Timer
Yes
Control method
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Digital crown
Yes
Side button
Yes
Touchscreen
Yes