4.4 cm case
4.0 cm case
977mm²
display area
759mm²
display area
4.2 cm case
3.8 cm case
740mm²
display area
563mm²
display area
10.7mm thin
11.4mm thin
Electrical heart sensor
Second-generation
optical heart sensor
Optical heart sensor
Always-On Retina display
Compass
Fall detection
64-bit dual-core S5 processor
Up to 2x faster than S3 processor
Dual-core S3 processor
Digital Crown with haptic feedback
Digital Crown
GPS + Cellular
GPS
Apple Watch Nike is available in silver and
space grey aluminium.
GPS + Cellular
GPS
Apple Watch Nike iis available in space grey aluminium.
GPS, GLONASS, Galileo and QZSS
GPS, GLONASS, Galileo and QZSS
Compass
Barometric altimeter
Barometric altimeter
Water resistant
50 metres1
Water resistant
50 metres1
Electrical heart sensor
Second-generation optical heart sensor
Optical heart sensor
International emergency calling2 and
Emergency SOS
Emergency SOS
Emergency SOS
Accelerometer
up to 32 G-forces
Accelerometer
up to 16 G-forces
Gyroscope
Gyroscope
Ambient light sensor
Ambient light sensor
Speaker
50% louder
Speaker
Microphone
Microphone
GymKit
GymKit
Capacity 32GB
GPS + Cellular
Capacity 16GB
GPS + Cellular
Capacity 32GB
GPS
Capacity 8GB
GPS
Ceramic and sapphire crystal back
GPS + Cellular
Ceramic and sapphire crystal back (center)
GPS + Cellular
GPS
Composite back
GPS
4.4 cm
368x448 pixels
977mm² display area
Over 30% larger display than Series 3
368x448 pixels
977mm² display area
Over 30% larger display than Series 3
4.2 cm
312x390 pixels
740mm² display area
312x390 pixels
740mm² display area
4.0 cm
368x448 pixels
977mm² display area
Over 30% larger display than Series 3
368x448 pixels
977mm² display area
Over 30% larger display than Series 3
3.8 cm
272x340 pixels
563mm2 display area
272x340 pixels
563mm2 display area
LTPO OLED Always-On Retina display
with Force Touch
1000 nits brightness
with Force Touch
1000 nits brightness
OLED Retina display with Force Touch
1000 nits brightness
1000 nits brightness
S5 with 64-bit dual-core processor
Up to 2x faster processor
Up to 2x faster processor
S3 with dual-core processor
W3
Apple wireless chip
Apple wireless chip
W2
Apple wireless chip
Apple wireless chip
LTE and UMTS³
GPS + Cellular models
GPS + Cellular models
LTE and UMTS³
GPS + Cellular models
GPS + Cellular models
Wi-Fi
802.11b/g/n 2.4GHz
802.11b/g/n 2.4GHz
Wi-Fi
802.11b/g/n 2.4GHz
802.11b/g/n 2.4GHz
Bluetooth 5.0
Bluetooth 4.2
Built-in rechargeable lithium-ion battery
Up to 18 hours⁴
Up to 18 hours⁴
Built-in rechargeable lithium-ion battery
Up to 18 hours⁵
Up to 18 hours⁵
Magnetic charging cable
Magnetic charging cable
USB power adapter
USB power adapter
GPS + Cellular model only
GPS + Cellular model only
