this post was submitted on 04 Dec 2024
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You really want Matter over Thread* when you can. Thread is the low power 2.4Ghz protocol, and is my bet for future tech. Matter makes it compatible with any ecosystem. (Functionality may be limited compared to the vendor app.)
But I already have some Z-Wave in my walls, so it's not completely out of the question.
The vendors, of course, have been slow to roll out actually open tech. I did just get the Aqara U300 door lock, which at least can unlock through Matter.
Do you mean over WiFi? Matter and Thread don't have overlapping functionality. In the OSI model, Matter is like layers 6-7, Thread covers 3-5, and 802.15.4 is 1-2 (MACPHY).
Matter also works over Ethernet and WiFi.
ZigBee is like 3-7 also using 802.15.4.
Z-Wave is also like 3-7 with some sub-GHz MACPHY.
For Matter, low power devices and sleepy devices should use Thread to optimally conserve battery.
Ethernet > WiFi unless wireless is needed for other use cases like cameras, media boxes, dedicated power, etc.
Bluetooth (low energy) last I checked is only supported for commissioning a device. It does use the Matter protocol, and I've blinked some lights on test hardware over BLE, but it wasn't officially supported.
Matter over Thread, Thread being the network protocol instead of WiFi for better reliability (mesh network, self healing, etc.)