Inside iPhone 6 and iPhone 6 plus

People at ifixit have successfully teared up iPhone 6

Lifting Up the screen with suction cup (source image ↗)

Here is a summary of how it went

Removing battery was not that easy. It took a little heat to force that out.

Removing battery (source image ↗)

The camera of iPhone 6

Camera of iPhone 6 (source image ↗)

Read it full here