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See Smartphones and Tablets > iPhone

Protection:

According to a survey commissioned by T-Mobile, nearly half of all smartphone owners have had their phones lost, stolen or damaged. For smartphone owners who have damaged their phones, 37 percent scratched the screen, 29 percent spilled a drink on it, 29 percent dropped it down the stairs and 20 percent dropped it in the toilet (ewwwwww!) [source: Kelton Research Smartphone Protection Survey] From HowStuffWorks

Lost or Stolen:
Install an app which will track your phone or erase personal data remotely.

Damage:
Screen Protectors:
Screen protectors can protect from scratches, nicks or cracks.

Spigen Screen Protector GLAS.tR NANO SLIM Premium Tempered Glass | Spigen
  0.23mm thickness and surface hardness of 8~9H 3 times harder than PET film.
  PET - polyethylene terephthalate film, Mylar

InvisibleSHIELD by ZAGG
  Glass   HDX - 3 layer shatter protection News   Glass clear - smooth

See: The 7 Most Popular Types of Screen Protectors for Cell Phones | eBay
Sapphire glass and Graphene promise more durability than Gorilla Glass found on iPhone screens in 2014.

Cases:
See Smart Phone Cases in Products.

Some smart phones allow Wi-Fi hotspots.

Links:
Mobile Phones in products
Charging

last updated 12 Oct 2014