Apple Watch Series 4 40mm Cellular

Device Type: Apple Smartwatch
Launch Date: September 2018

Features

Software: watchOS 5.0, upgradable to 9.5
Storage: 16GB 1GB RAM
Hardware: Apple S4
Display: 1.57 inches, 394 x 324 pixels
Battery: 225 mAh
Other Features: ECG Certified, Ion X Strengthened Glass

Apple Watch Series 4 40mm Cellular Technical Specifications

Display

Size: 1.57 inches
394 x 324 pixels
Protection: Ion-X strengthened glass
Misc: Retina LTPO OLED, 1000 nits (peak) 394 x 324 pixels 3D Touch display

Hardware

CPU: Apple S4
Apple S4 Dual core
Internal Memory: 16GB 1GB RAM
GPU: PowerVR
Card Slot: No
SIM: eSIM

Software

Software: watchOS 5.0, upgradable to 9.5

Network

Network: GSM / HSPA / LTE
2G: GSM 850 / 900 / 1800 / 1900

3G: HSDPA

4G: LTE

Body

Dimensions: 40 x 34 x 10.7 mm
Weight: 40 g
Colour: Silver, Gold, Space Black
Misc: Glass front, ceramic/sapphire crystal back, stainless steel frame
50m water resistant
ECG certified (region dependent software application, hardware available on all models)

Connectivity

WiFi: Wi-Fi 802.11 b/g/n
Bluetooth: 5.0, A2DP, LE 
USB: No
NFC: Yes
Radio: No

Audio

Speaker: Loudspeaker
Audio Port: No 3.5mm jack

Rear Camera

Resolution: No

Maps

GPS, GLONASS, GALILEO, QZSS

Sensors

Accelerometer
Gyro
Heart Rate
Barometer 

Battery

Capacity: Li-Ion 225 mAh (0.86 Wh), non-removable
Misc: Wireless charging 

Other Features

Natural language commands and dictation (talking mode)
Models: A1975, A1976, A2007, A2008
Apple Watch Series 4    Retina LTPO OLED display    225mAh Battery    50m Water Resistant    ECG Certified   

Related Devices