I have a handful of Aqara motion sensors because some idiots on Youtube recommended them. They're shit compared to the Hue motion sensors though, and take 3+ seconds to respond while I look like an idiot waving my hands around and sometimes even need to take off my shirt and wave it like a flag to get the lights to turn on. The Hue motion sensors respond almost instantly in comparison.
All this low power electronics designed to run 3 years on a coin battery bothers me. If it's that low power why not get rid of the battery, slap a tiny solar panel (the kind they used on calculators in the 90s) and a supercapacitor, it should be able to power itself indefinitely on normal levels of room light, never go into deep sleep states, and can even turn the room lights on automatically if it needs more power.
I don't have any Aqara motion sensors. I do have two Ikea ones though and they work fine.
One is in my home office to turn the lights on and off, it works fine and I've never had problems with it not detecting me. It's not instant, but always responds within a second or two.
The other one is sitting by the cat litter boxes and is used to trigger an automation involving an air cleaner. It senses the cats at a range of about 1.5m just fine.
The next thing I'm interested in is the crop of mmWave presence sensors. There are a lot out there and I'm not sure if there's a clear winner in this space yet.
Ironically, I do I have the Aqara mmWave presence sensor and my experience with it has been pretty good. It is powered on 5V from the wall though, which makes aesthetics a little harder to manage.
All this low power electronics designed to run 3 years on a coin battery bothers me. If it's that low power why not get rid of the battery, slap a tiny solar panel (the kind they used on calculators in the 90s) and a supercapacitor, it should be able to power itself indefinitely on normal levels of room light, never go into deep sleep states, and can even turn the room lights on automatically if it needs more power.