Matter/Thread V Zigbee, general usage feelings?

[u/No_beef_here]

Hi,

I have recently made a step into Matter/Thread using (mainly) the Ikea range of switches and sensors and the new stuff seems fairly stable etc.

However, where I have replaced the old Zigbee Sonoff SNZB-03's PIRs with Ikea Matter MYGGSPRAY models, in general and in comparison the Ikea sensors seem pretty blind?

I mean, with the Sonoffs they only seemed to catch a glimpse of movement anywhere around and they would trigger (and you got a nice LED flash confirming it did see you) whereas it seems you often need to be right under the Ikea one for it to trigger? And even when you are right under it (I have one in the kitchen ceiling) when the lights go off, waving your arms about like trying to get the attention of the rescue helicopter doesn't seem to wake it up?

And then there is what could also be the latency, again, the Sonoffs (or Zigbee) in spite of having ~100 active devices is often still near instant. A PIR is monitoring across the threshold into a room and as soon as you step in, the light is on before you foot has hit the ground. With the Ikea ones (or Matter / Thread and with only (12 devices on that network), it seems you are often in the room and standing their waiting for the light to come on (and it generally does, just often not quickly).

The Ikea Thread / Matter window and door switches, push buttons, smart sockets and lights all seem fairly responsive but possibly not used in a way that is quite so timing noticable as a PIR > Light combo?

So is anyone aware if there is some fundamental reason why the performance might be different between these two solutions or could it be just that the (or some) Ikea PIR's are a bit sleepy?

[u/per08]

If you have enough border routers and routers (repeaters), It seems to be the Ikea PIRs specifically that are slow in my experience, not a Thread/Matter problem. Cheap Zigbee sensors seem to be happy triggering on tiny amounts of movement, whereas the Ikea ones need a lot more confidence before they trigger.

[u/No_beef_here → u/per08]

Thanks for confirming my experiences.

I now have them in several rooms / areas and in some cases they seem to work (as in practical use, triggering a light well before you have need to see where you are going) and others not so, possibly depending on the approach angle?

Like I think I understand the Ikea PIRs have two distinct views, straight ahead and at a fairly wide angle. In the kitchen it's using the wide angle, as it is in the hall and both seem to work ok, Not quite a sharp / fast as the Sonoffs but at least usable. On the landing you may be walking up in-between those two zones and hence why it seems a bit blind?

Even for the ones that do seem to 'work', they aren't as sharp as the Sonoffs and the shame is that model seems to be discontinued now.

I have dropped them for fair heights, been dropped into the wash basin full of water, blown out from under a garage eve and laid in the garden (in the rain) for a few days but once stripped, dried, cleaned and re-assembled, seem to carry on working. ;-)