smart locks & keyless entry

A plain-English explainer of how smart locks work – the motor, credentials, Bluetooth, Wi-Fi and hubs, power, backup, and where their security really comes from.

A step-by-step fix for a smart lock that won’t connect to Wi-Fi – the 2.4GHz band issue, signal, batteries, router changes, bridge placement, and re-pairing.

A complete buyer’s guide to choosing the right smart lock – fit, unlock methods, Wi-Fi, security grade, backup, battery, and smart-home support, with picks.

A complete step-by-step guide to installing a smart lock yourself in 20-30 minutes – measuring, retrofit vs replacement, mounting, calibration, and fixing jams.

The fingerprint door locks worth buying in 2026, from a $50 lever set to eufy’s Wi-Fi models — with honest picks, prices, and a budget option under $100.