Gadgets are working machines that can be prone to wear and tear but the fact is if you apply certain measures they can live practically forever.
Label, secure them. Place your name and contact info and secure them inside a phone holder. Better yet attach a retractable holder that attaches it to your person.
Tracking system. In an interconnected world there’s an infinite number of ways you can track your device in case it gets lost. Remember the story of the dude thief who got caught after unwittingly uploading all his selfies on the Dropbox of the original owner?
Protect your device. Viruses, worms etc can ravage the OS of most of these gadgets. Prevent this by updating regularly.
Body armour. Apply a cellophane cover on the LCD screen, encase them in a casing. Should these casings break, your gadget can emerge from it good as new.