iFixit Hero4 Session teardown: it's impossible to repair
The new GoPro Hero4 Session is an impressive waterproof camera capable of capturing 1440 video at up to 240 frames per second without the need for a waterproof case. It's also quite expensive, retailing for $400. But is the palm-sized action-cam really worth that much cash, what with its distinct lack of replaceable parts? iFixit recently disassembled one to find out.
The team quickly discovered that any sort of repair beyond the outer glass lens (for which GoPRo does sell replacement kits) is basically impossible thanks to the manufacturer's waterproofing efforts. That's a pain. The Session's battery, which is pretty small at 1000 mAh is likely going to need to be recharged more often than the Hero 3's power cell, thereby degrading faster and requiring replacement sooner. Except you can't replace it due to the waterproofed case.
As for optics, the iFixit team found that the Session sports the same f/2.8 lens as the standard Hero4, as well as what appears to be the same 1/3.2" sensor format that the old GoPro Hero employed. Overall, the Session proved to be nearly impossible to take apart and even harder to put back together again.
