Apple Watch Series 4 (GPS) 44mm – Space Grey Aluminium Case with Black Sport Loop

Band fits 145- to 220-millimetre wrists
S4 with 64-bit dual-core processor
W3 Apple wireless chip
watchOS 5
Barometric altimeter
16GB capacity
Optical heart sensor
Electrical heart sensor
Built-in GPS, GLONASS, Galileo and QZSS
Improved accelerometer up to 32g-forces
Improved gyroscope
Ambient light sensor
LTPO OLED Retina display with Force Touch (1,000 nits)
Digital Crown with haptic feedback
Louder speaker
Ion-X strengthened glass
Sapphire crystal and ceramic back
Wi-Fi (802.11b/g/n 2.4GHz)
Bluetooth 5.0
Built-in rechargeable lithium-ion battery
Up to 18 hours of battery life
Water resistance to 50 metres
Space Grey aluminium case

Processor: 64-bit dual-core S4 processor
Electrical heart sensor: Yes
Second-generation optical heart sensor: Yes
Fall detection: Yes
Digital Crown with haptic feedback: Yes

Finish: Aluminium – Space Grey

Display: 368 by 448 pixels; 977-sq-mm display area
LTPO OLED Retina display with Force Touch: 1,000 nits brightness

S4 with 64-bit dual-core processor: Up to 2× faster processor
W3: Apple wireless chip

Wi-Fi: 802.11b/g/n 2.4GHz
Bluetooth: 5.0

Built-in rechargeable lithium-ion battery: Up to 18 hours
Magnetic charging cable: Yes
USB power adapter: Yes

Included: Space Grey Aluminium Case, Sport Loop, 1m Magnetic Charging Cable, 5W USB Power Adapter

Model: MR8U2ZA/A