Apple
Apple Watch Series 4 Aluminum
Experience cutting-edge technology with premium design and powerful performance.
📅 2018
🤖 watchOS 5.0, upgradable to watchOS 10.6.1
💾 16GB 1GB RAM
Network & Connectivity
2 G bands
GSM 850 / 900 / 1800 / 1900
3 G bands
HSDPA 850 / 900 / 2100 / 800 - Europe, Australia
4 G bands
1, 3, 5, 7, 8, 18, 19, 20, 26 - Europe, Australia
Speed
HSPA, LTE
Display & Screen
Size
1.78 inches
Resolution
448 x 368 pixels (~326 ppi density)
Protection
Ion-X strengthened glass
Type
Retina LTPO OLED, 1000 nits (peak)
Platform & Performance
Chipset
Apple S4
C P U
Dual-core
G P U
PowerVR
O S
watchOS 5.0, upgradable to watchOS 10.6.1
Memory & Storage
Internal
16GB 1GB RAM
Card slot
No
Main Camera
Modules
No
Battery & Charging
Charging
Wireless
Audio & Sound
3.5mm jack
No
Build & Design
Weight
36.7 g (1.31 oz)
Build
Glass front, ceramic/sapphire crystal back, aluminum frame
S I M
eSIM
Communication
Bluetooth
5.0, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, QZSS
N F C
Yes
Radio
No
U S B
No
W L A N
Wi-Fi 802.11 b/g/n
Launch Information
Status
Discontinued
Miscellaneous
Models
A1975, A1976, A2007, A2008, A1977, A1978