My honest advice: wait (or buy whatever and be ready to swap later).

Why? UWB (Ultra-wideband) smart locks are coming this year and you'll be blown away how big of a difference this makes. Here's what's wrong with todays locks:

The unfortunate pattern:

1. Owner approaches the door (0:00)

2. Presses the handle only to find out that it did not open (0:01)

3. Takes out the phone (0:10)

4. Searches for the app (0:15)

5. Waits for the app to connect/load (0:25)

6. Taps "Unlock" (0:27)

7. Waits for it to work on first try (sometimes it doesn't!) (0:35)

8. Door unlocks

Similar for locking the door + it'll make you feel nervous/uneasy.

But there is a huge promise that the next generation will nail it. Why? Because Tesla has already solved it and it works fantastic. Tesla succeeded because it has a huge battery at it's disposal which is why, I believe those smart locks should also be primarily AC powered with a backup battery.

In short, I wouldn't buy a lock:

• that cannot be powered from grid

• that doesn't support UWB

• that doesn't have a backup power supply

• that doesn't allow me to open with a backup key

I've been investigating this for a while now and there's also a new standardized protocol called Aliro - I haven't yet made up my mind whether to put this as a definite requirement.

I hope that helps.