What does the color in the upper left corner of Apple mobile phone stand for?

When the time in the upper left corner of the iPhone is displayed as a blue bubble, it means that your iPhone is providing a personal hotspot, a mirror screen, or an application is currently using your location information.

Manage Personal Hotspots: Open iPhone Settings-Personal Hotspots, and you can set whether others are allowed to join. Or directly open the control center and press and hold the cellular data icon to manage whether personal hotspots can be found.

Functional characteristics

processor

IPhone series models have been equipped with Apple silicon self-developed chips since iPhone 4 (inclusive), which integrates processor core, GPU core, IO core and memory controller.

Mute key

The first generation of iPhone (first appeared in 2007).

The mute button of iPhone series products is located on the left side of the front of the device, which is a physical function switch designed by iPhone, allowing users to quickly switch between mute and ringtone.

Touch ID

IPhone 5s (debut: 20 13).

Touch ID is Apple's fingerprint identification technology. It first appeared on the iPhone 5s.

Touch ID is also used for the following models: iPhone SE, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus and iPhone SE.

Cancel this feature from subsequent models of iPhone X.