So I now have three mobiles, a UK company phone (4s), a JP company phone (5s) and a “Garake or Galapagos” phone for personal use.
The Garake phone is the typical Japanese phone, developed much like species in the Galapagos, completely undisturbed by outside technology and alien to anything outside the island. I have to say I am not fond of the Garake phone, but it is pretty neat that the Japanese show such self depreciating insight in naming the phone!
Expat in Tokyo 
Interesting to learn about the Garake phone! Something us outsiders would completely miss otherwise.