This is a research-based pick, not a hands-on one. We haven't personally tested this unit, so treat the specifics below as reported by the manufacturer and reviewers rather than firsthand testing.
Why this made the list
A lot of smart locks mean replacing the entire exterior deadbolt hardware, including the part that has to look good on the front door. This one keeps the existing exterior hardware and only replaces the interior mechanism, a real difference for anyone who likes their current door hardware.
What it actually does
The retrofit design fits behind the existing exterior deadbolt and thumb-turn, adding fingerprint recognition, a keypad, and Apple Home Key support without changing how the door looks from outside. A rechargeable battery powers the lock, and Matter over Thread support means it connects to Apple Home, Alexa, and SmartThings without being locked into a single ecosystem.
Who this is actually for
Anyone who wants keyless entry without replacing exterior door hardware they like, whether for aesthetic reasons or because the existing deadbolt matches other hardware on the house. Also a solid fit for anyone already invested in a specific smart home ecosystem, since Matter support keeps it flexible.
What to weigh before buying
- It's a retrofit, worth confirming compatibility with the specific existing deadbolt before buying.
- A rechargeable battery needs periodic charging, unlike a lock that runs on standard replaceable batteries.
- Matter over Thread requires a Thread border router for the full smart home integration, most modern smart speakers and hubs already include one.
The verdict
A smart way into keyless entry for anyone who doesn't want to change how their front door looks. The retrofit approach solves a real objection a lot of people have to smart locks in general.