Aqara Smart Lock U200Retrofit cylinder/deadbolt motor with a separate fingerprint keypadA persuasive retrofit when your existing lock is sound and you want fingerprint, PIN and Apple home key access without changing its exterior.Thread$169.99Needs a Thread border router
Level Bolt (Matter)Hidden retrofit motor and replacement deadboltA strong choice when the existing deadbolt looks good and keeping both its hardware and keys is the point.ThreadFrom $199Needs a Thread border router
Nuki Smart Lock (4th generation)Legacy European retrofit lock with replaceable AA batteriesWorth keeping if it already fits your door and works well.Thread€189Needs a Thread border router
Nuki Smart Lock Pro (4th generation)Legacy European retrofit lock with a removable rechargeable Power PackStill useful for an owner who values the removable Power Pack and already has dependable entry.Thread€289Needs a Thread border router
Nuki Keypad 2Bluetooth PIN and fingerprint accessory for compatible Nuki locksA useful way to add phone-free entry to an older Nuki, especially when fingerprints would save the household from remembering codes.Bluetooth€159No brand hub or Thread router required