MotoG5s encryption switch "on" but doesn't ask for pin on restart I've had encryption turned on on my MotoG5s since I bought it last year. It used to ask for a pin every time it was turned on and at every restart. 

Since updating to 7.x.x (currently on 7.1.1) it's never asked for this pin but the switch in settings says encryption is on. 

Do people think my phone is encrypted? How can I check?
An Android device can be encrypted without a PIN or password. 

In such a case and if the encryption is "hardware based" the data is just bound to your device. The advantage of an encryption without PIN/password is that it can be erased very quick by just throwing away the key. No need to overwrite the all the data. 

Therefore the question is not if or if not your device is encrypted - the question is what risk or attack do you expect the encryption to resist?

If you want to avoid other people to access your data when you loose your device you have to set a pin or password (not only because of the encryption). It will then also be used for the device encryption, making it harder for an attacker to access your data.