Adjustable Dumbbell

An adjustable dumbbell changes weight via a dial or pin mechanism, replacing a whole rack of fixed dumbbells in one footprint. We judge them on weight range, how fast and secure the changeover is, build quality, and price per pound of range — the honest value number, since a wide range at a fair per-pound cost is the point. They are a space-and-money efficient home-strength buy; the review sticks to the hardware and leaves training programming to general fitness information.