While there are a couple of pretty good Bluetooth and WiFi solutions out there, which keeps your Android smartphone protected while not connected to a Bluetooth device or WiFi nearby, these solutions disable the PIN or password entry on the smartphone while connected. That's pretty handy, let's say while you are in the car - connected to your hands-free kit, or at home - connected to your W-LAN. However, a very interesting utility - really useful for Pebble smartwatch users - is Pebble Locker. And since Pebble is shipping its Pebble Steel since this week to many new Pebble users, I don't want to forget to recommend this app for your convenience. Unlike other solutions, Pebble Locker is free - if you only use it with your Pebble smartwatch but it also offers general Bluetooth and WiFi options through an in-app purchase.