Apple Watch Series 4 Specs and Features
Basic
Model No.
Watch Series 4 (Series 4 (GPS + Cellular) requires an iPhone 6/iOS 12 (or later)
Availability
Available. Released 2018, September
OS
watchOS 5.0, upgradable to 5.2.1
SIM
Electronic SIM card (Apple e-SIM)
Network
2G
GSM 850 / 900 / 1800 / 1900
3G
HSDPA 850 / 900 / 2100 / 800 - Europe, Australia HSDPA 850 / 1700(AWS) / 1900 / 800 - USA, LATAM, Canada HSDPA 2100 - China
4G
LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850) - Europe, Australia LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 13(700), 17(700), 18(800), 19(800), 25(1900), 26(850), 41(2500) - USA, LATAM, Canada LTE band 1
Body
Dimensions
44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in)
Material
Stainless Steel frame; all-ceramic/sapphire crystal back
Water Resistant
50m waterproof - ECG certified (USA only)
Color
Space Black, Silver, Gold
Display
Screen
1.78 inches, 10.0 cm2 (~60.0% screen-to-body ratio)
Type
LTPO OLED capacitive touchscreen, 16M colors
Resolution
448 x 368 pixels (~326 ppi density)
Protection
Sapphire crystal glass - 3D Touch display - 1000 nits
Camera
Memory
Hardware
Sensors
Heart Rate
Yesheart rate (2nd gen)
Comms
WLAN
Wi-Fi 802.11 b/g/n/ac, dual-band
GPS
Yes, with A-GPS, GLONASS, GALILEO, QZSS
Battery
Type
Non-Removable Li-ion Battery
Talk Time
Up to 18 h (mixed usage)
Others
Others Features
Audio player - Photo viewer - Siri natural language commands and dictation (talking mode)