What does the green light on the back of the Apple Watch mean?

The green light on the back of the Apple Watch means the watch is measuring heart rate, and the green light will light up when measuring heart rate.

This green light can be turned off. Open Applewatch on your phone, click Privacy under "My Watch" after entering, click Sports and Fitness on the privacy interface, and turn off the heart rate switch under this option. That’s it. In normal state, it will measure the heart rate every 10 minutes, and the watch has built-in UBER. Moreover, the watch can directly unlock the room door, and the Passbook can be used as a boarding pass to watch videos, images, etc. remotely.

Applewatch can send Sketch, Tap, heartbeat, etc. to other Applewatch users through DigitalTouch. Every Monday Applewatch will suggest new exercise goals for users based on the previous week’s activity data.

Function of Apple Watch

When there is new information, Apple Watch will prompt you immediately. Users can view it directly and choose one from the preset content to reply, or they can write or speak by voice. Write new information by typing. In addition, Apple Watch also prepares some emojis. But this is only suitable for temporary situations. Sending and receiving information for a long time will not only be unable to hold the battery, but also pose a great challenge to vision.

It’s easy to miss a call when your phone is in your bag. With the Apple Watch, this won’t happen again. The name of the caller will be clearly displayed on the watch face, and you can choose to answer or hang up directly on the watch. However, it will be a bit strange to put the watch against your ear. You can choose to transfer the call to the iPhone before continuing.