This pocket-sized phone is perfect prey for our most portable toolkit yet, the Essential Electronics Toolkit—everything you need, and nothing you don't.

Dust, busted—peeling up the charging coil reveals a powdery reminder that you should believe the scary warning text more than the "sweeper technology" marketing hype.

Meanwhile, the motherboard exhibits a psychedelic rainbow sheen—clear evidence of a hydrophobic nano-coating.

We see this coating and yet hear no claims from Samsung about repelling any water, unlike the Razr...