Apple Watch Series 4 GPS & Cellular 44mm

44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in) Dimensions

Stainless Steel frame; all-ceramic/sapphire crystal back Build

Electronic SIM card (Apple e-SIM)

50m waterproof

– ECG certified 

LTPO AMOLED capacitive touchscreen, 16M colors 

1.78 inches, 10.0 cm (~60.0% screen-to-body ratio) Size

448 x 368 pixels (~326 PPI density) Resolution

Sapphire crystal glass Protection

3D Touch display

– 1000 nits

watch OS 5.0 Operating System

Apple S4 Chipset

Dual-core Processor

16 GB Internal Storage

Wi-Fi 802.11 b/g/n

5.0, A2DP, LE Bluetooth

Yes, with A-GPS, GLONASS, GALILEO, QZSS GPS

Audio player

– Photo viewer

– Siri natural language commands and dictation (talking mode)

Non-removable Li-Ion battery