this post was submitted on 18 Sep 2025
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I'm not sure why. There's nothing magical about a signal from a key when it could just as easily come from a phone.
Physical house keys don’t have signals. Cars are a bit different but you can keep your key in a Faraday cage.
Okay, but why would you want to do that?
Similarly, lots of apartment keys and office keys are just FOBs now.
Why would I want to depend on my phone instead of a key though? Phone batteries run out all the time
I regularly get through the day without running out of power. And an extra thing in my pocket is annoying, especially when I need to dig it out in order to use it. Same reason I prefer to open my garage with a clicker than to unlock a big deadbolt by hand.
If running out of power is a real fear, you can always do the "hide a spare key under a fake rock near the door" trick.
Try starting your day at 25% with a hectic schedule.
Also those smart locks are super hackable. Lock picking at least requires skill.
I would simply charge my phone overnight.
Most off the shelf door locks are pretty easy to evade if you know what you're doing. But most burglars are people hard up enough to take a very high risk, low reward line of work and not terribly sophisticated.
The two home invasions I've heard of personally both involved just walking up behind someone as they were opening their door and pulling a knife on them.
Good for you if you can charge it overnight. I have a charger next to my bed just for this and I still never remember to.