Best high-security padlock: Abus Granit 37RK/80 SZP Premium Padlock The best padlocks keep your possessions safe in the same way the best bike locks do. That is, they’re great thief deterrents.

Our picks of the best smart door locks include those from Yale, Schlage, Aqara, August, and Level. We’ve got picks for the best retrofit lock, the best Apple Home Key lock, the best fingerprint ...