iPhone SE teardown highlights:
• The Li-ion battery in the iPhone SE comes in at 3.82 V and 6.21 Whr. This offers a minor (but notable) power increase from the 5.92 Whr cell in the 5s. There was no detectable increase in physical size, so we suspect that the extra capacity comes from updated tech.
• We found silicone waterproof seals (à la iPhone 6s) on some—but mysteriously not all—of the logic board connectors.The front camera, volume controls, and rear camera connectors all get the fancy waterproof treatment, while the LCD, digitizer, battery, and Lightning connector cables go without.
• The hardest part of any repair is knowing what to do. Thanks to the similarities to the 5s and our repair guides, repairs on the SE are already excellently documented.