Apple Watch Series 4

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Specifications

Physical specifications

Dimensions 44 x 38 x 10.7 mm
Weight 48 g
IP rating (protection against dust and water) N/A, (water resistant up to 50 m)

Screen and keys

Screen type LTPO OLED touch screen, 16 million colours
Screen size 1.78 inches
Resolution 448 x 368 pixels

Picture, video and sound

Music player Yes
FM radio No
Speaker Mono

SIM

SIM type eSIM

Processor

Chipset Apple S4
CPU Dual-Core
GPU PowerVR

Memory

Storage 16 GB
RAM 1 GB RAM

Network

2G network Yes
3G network Yes
4G network Yes
5G network No

Connectivity

Bluetooth 5.0, A2DP, LE
Wi-Fi 802.11 b/g/n, 2.4 GHz
NFC Yes
GPS Yes

Sensors

Accelerometer Yes
Gyroscope Yes
Compass No
Barometer Yes
Heart rate sensor Yes

Battery

Battery type Non-removable Li-Ion battery
Standby time Up to 18 hours

Operating system

Operating system watchOS 5

Security

Fingerprint sensor No
Iris scanner No