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Apple Watch Series 4
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watchOS 5
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Popular topics
Charge battery
Activate your Apple Watch
Connect to a Wi-Fi network
Turn your Apple Watch on or off
How to
Specs
How to
Specs
How to
Getting started
Basic functions
Calls and contacts
Messaging
Apps
Connectivity
Getting started
Charge battery
Turn your Apple Watch on or off
Activate your Apple Watch
Use screen and keys on your Apple Watch
Select Siri settings
Use Siri
Extend battery life
Find your mobile phone
Restart your Apple Watch
Basic functions
Personalise the Apple Watch home screen
Turn silent mode on or off
Choose language
Use Do Not Disturb
Turn use of lock code on or off
Use Find My Apple Watch
Update Apple Watch software
Restore factory default settings
Calls and contacts
Call a phone number
Call a contact in your address book
Answer call
Messaging
Read iMessage
Read SMS
Read MMS
Read email
Apps
Install apps from App Store on your Apple Watch
Use health apps
Use music player
Use Apple Music
Connectivity
Set up mobile data on your Apple Watch
Turn flight mode on or off
Connect to a Wi-Fi network
Pair a Bluetooth device with your Apple Watch
Use GPS navigation
Specs
Dimensions
44 x 38 x 10.7 mm
Weight
48 g
Screen type
AMOLED
Screen size
1.78 inches
Resolution
448 x 368 pixels
Music player
Yes
FM radio
No
Storage
16 GB
RAM
1 GB RAM
2G network
Yes
3G network
Yes
4G network
Yes
NFC
Yes
GPS
Yes
Accelerometer
Yes
Gyroscope
Yes
Heart rate sensor
Yes
Standby time
Up to 18 hours
Operating system
watchOS 5
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Apple Watch Series 4
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