Top specifications
eSIM compatibility
No
Heart rate sensor
Yes - 3rd Gen
Usage time
Standard: Up to 18 hours
Low Power Mode: Up to 36 hours
15 minutes for up to 8 hours of normal use
8 minutes for up to 8 hours of sleep tracking
Low Power Mode: Up to 36 hours
15 minutes for up to 8 hours of normal use
8 minutes for up to 8 hours of sleep tracking
Device warranty
24 months
Design
Interchangeable strap
Yes
Battery
Usage time
Standard: Up to 18 hours
Low Power Mode: Up to 36 hours
15 minutes for up to 8 hours of normal use
8 minutes for up to 8 hours of sleep tracking
Low Power Mode: Up to 36 hours
15 minutes for up to 8 hours of normal use
8 minutes for up to 8 hours of sleep tracking
Removable battery
No
Fast charge
Yes
Body
Weight (g)
Aluminium (42mm): 30
Titanium (42mm): 34.4
Aluminium (46mm): 36.4
Titanium (46mm): 41.7
Titanium (42mm): 34.4
Aluminium (46mm): 36.4
Titanium (46mm): 41.7
Dimensions (mm)
42mm: 42x36x9.7 (HxWxD)
46mm: 46x39x9.7 (HxWxD)
46mm: 46x39x9.7 (HxWxD)
Water resistant
Yes - up to 50m
Swimproof
Swimproof
Dust resistant
Yes - IP6X
Connectivity
Wi-Fi
Yes - 4
Bluetooth
Yes - 5.3
Processor
Model
S10 SiP with 64‑bit dual-core processor
Display
Brightness
Up to 2000 nits
1 nit minimum brightness
1 nit minimum brightness
Display type
Always-On Retina LTPO3
Edge‑to‑edge
Edge‑to‑edge
Screen resolution
42mm: 446x374
46mm: 496x416
46mm: 496x416
Network
VoLTE (4G calling in UK)
No
Sensors
Accelerometer
Yes - High-g
Digital compass
Yes
Gyroscope
Yes
Ambient light sensor
Yes
Heart rate sensor
Yes - 3rd Gen
Memory
Device memory
64GB
Features
Voice controls
Yes - Siri
Gesture controls
Double tap
Speaker and microphone
Yes
Special features
4-core Neural Engine
Second-generation Ultra Wideband chip
Carbon-neutral combinations
Second-generation Ultra Wideband chip
Carbon-neutral combinations
App notifications
Yes
Apple Pay
Yes
Navigation
Yes
Activity app
Yes
eSIM compatibility
No
General features
Cycle Tracking
Temperature sensing
Emergency SOS
Fall and Crash Detection
Sleep tracking
Mental wellbeing support
Noise monitoring
Backtrack
GymKit
Temperature sensing
Emergency SOS
Fall and Crash Detection
Sleep tracking
Mental wellbeing support
Noise monitoring
Backtrack
GymKit
Warranty
Device warranty
24 months
Face features
Custom faces
Yes
World clock
Yes
Weather
Yes
Timer
Yes
Stopwatch
Yes
Calendar
Yes
Control method
Digital crown
Yes - with haptic feedback
Side button
Yes
Touchscreen
Yes
Software
Operating system
watchOS 11