1. Google Maps
If you’re lost and without wifi or data, you can still use Google Maps. The system is available offline and allows you to select and download a specific area on the map which you can then browse later.
To create an offline map, press Search > Make this map area available offline. You can store up to six maps on your device.
2. Speed dial
Instead of just having a list of numbers on speed dial, Android lets you create icons for your most-dialled contacts and place them on your home screen. Press and hold an empty space on your home screen, and then press through to Shortcuts > Contact, and select the contact you want to add. Alternatively you can press down on a 'Favourite' contact and create a shortcut to the home page.
3. Lost phone
Not everyone is going to return a lost smartphone to its owner but if you want to increase your chances of having your phone returned to you, you can display your contact information on your password protected lock screen. Go to Settings > Security > Screen Security > Owner Info. Then just enter your name, email address or phone number to help a kind passer-by reunite you with your phone.