Night Shift
The Night Shift function aims to reduce the amount of blue light in your display after sundown, leading to improved sleep. Based on your device's clock and location, it automatically adjusts the display colours to the warmer end of the spectrum at sunset. Night Shift function is available with an update for iOS 9.3 and requires an iPhone 5S or later.
More Info
- Glossary of terms - mobile phones
- How to choose a mobile phone?
- How to back up or restore data on your phone
- How do I reset my phone to my factory settings?

