personal tech

Battery replacement gets the thumbs up, but it all hinges on dust. A conventional phone might be better bet for home repairers

Apple's iPhone Duo scores higher than its foldable rivals for repairability, but don't let dust get into its delicate workings.

iFixit teardown crew put a spudger and screwdriver to Apple's flagship phone and reached a provisional verdict: its repairable, up to a point, and the batteries can be replaced. The inner display and hinge, though, look daunting.

The foldable inner screen is the Duo's party trick, yet reports suggest it isn't going smoothly for every owner.…