Magnets for those modular clip-on accessories are neatly labeled. They'd be tough to replace, but that's okay—you're likely to be rocking a different phone by the time they start to wear out in 700 years or so.

Not much remains besides the fingerprint sensor, glued comfortably in place on the back—a location that comes with some drawbacks, but is quickly becoming the de facto smartphone standard. Well, sort of.