"The $140 Lock Ultra works just like other retrofit smart locks if you're using it with a typical deadbolt. You swap it for the indoor thumb turn portion, and Bob is, as they say, your uncle. Where it differs is that for $20 more, it comes with an adapter kit that lets it work with jimmy-proof and mortise locks the same way the original SwitchBot lock worked with normal deadboltsrather than replacing your lock hardware, it slips over it and operates it for you."
"I like the Lock Ultra, either as a fix for my weird garage lock or a regular deadbolt thumb turn replacement. Having the smarts only on one side of your door has drawbacks, sure; like that you'll still have to use a physical key or otherwise be patient with fiddly smartphone-based unlocking. But if your needs are simple and you just aren't interested in a full smart lock, you could do far worse."
SwitchBot Lock Ultra is a modular retrofit smart lock priced at $140. An optional $20 adapter kit enables compatibility with jimmy-proof and mortise locks by slipping over existing hardware to operate it without replacement. For typical deadbolts, the device replaces the indoor thumb turn. The design preserves existing external key access while adding automated control on one side. That single-sided automation means users may still need physical keys or patience with smartphone unlocking. The Lock Ultra suits low-traffic or unconventional doors, like detached garage pedestrian doors, but is not ideal for high-traffic entries.
Read at gizmodo.com
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