Hello,.

I'm using a nexus 4 with encryption (completely stock android 5.1), but with a short pin for easy accessibility. Now as far as i know, if a thief gets hold of my phone, they can easily bruteforce the pin and gain access to everything stored on my phone, rendering the encryption useless.

What is a good way to actually secure an android phone with encryption, without completely giving up on usability (like having to type a 10+ character password every time you want to check your messages)?

Also, is there a way to make the decryption password you have to enter when starting up the phone different from the pin used for screen unlock?