Xiaomi WalkingPad X21 Double-Fold Treadmill

The Xiaomi WalkingPad X21 Double-Fold Treadmill has a black aluminum frame that folds twice and stands upright for storage. A single speed dial controls start, speed up to 7.5 MPH and stop, the 47 by 18 inch deck uses an eight-layer cushion, and a quiet 1.25 HP brushless motor suits late sessions. App logging and Apple Watch heart-rate integration suit small apartments.

$1,199