If you want everything Apple's iPhone can do except the "phone" part, the $400 cheaper 6th-gen iPod Touch is for you. It even has the iPhone 6's A8 chip, albeit running a tad slower. The iFixit team has taken the 4-inch device apart to view its guts and see whether Joe Shmoe could fix it with the right tools. Its findings? The Touch has a pretty nice camera for a music player, but lacks the iPhone's image stabilization and has a slightly slower f/2.4 iris. It's also missing the pricier sibling's touch sensor, but otherwise shares a surprising number of parts. And if it breaks? Unless you're prepared to heat, tweeze and pry, you'd best leave the fixing to Apple.

http://www.engadget.com/2015/07/20/ipod-touch-teardown/