Apple Watch Series 7 teardown reveals big screen changes, minor battery upgrade | AppleInsider
iFixit says that the Samsung Galaxy S7 is even tougher to repair than its predecessor - PhoneArena
How to Apply Custom-cut Battery Adhesive - iFixit Repair Guide
It is possible to replace the Samsung Galaxy S7 battery https://www.ifixit .com/Teardown/Samsung+Galaxy+S7+Edge… | Samsung galaxy s7, Samsung galaxy s7 edge, Samsung