You can get really creative with an Android phone. Install LineageOS with only the minimum gapps you want. Lock down everything, remove the play store, add Ta

You can get really creative with an Android phone. Install LineageOS with only the minimum gapps you want. Lock down everything, remove the play store, add Tasker to make the UI black&white when using apps other than photos/camera install a launcher like nova to further customize what apps are visible/easily accessible. You can even completely remove Chrome but still install the web browser component so things like your e-mail app work but you can't easily browse the web. I did this for a while a couple years back to discourage myself from spending so much time on my phone. Worked great and I would have kept it up if it were not for my wife constantly complaining that I couldn't look anything up or use Yelp or Messenger or... :D