SMART LOCKS · BUYING DECISION
Retrofit smart lock versus full replacement
A retrofit lock changes the interior mechanism while keeping the outside hardware. A full replacement changes the deadbolt or lever assembly.
The short answer
A retrofit lock changes the interior mechanism while keeping the outside hardware. A full replacement changes the deadbolt or lever assembly.
What changes the decision
Retrofit designs preserve the visible keyway and can suit rentals or design-sensitive doors. Full replacements can add keypads, fingerprint readers or wallet-based entry, but demand a complete fit check.
Research boundary
No model is ranked or linked for purchase until exact-SKU fit, current inventory and commercial approval are complete.