no both Hubitat and SmartThings are now on the same channel (20) I believe to get SmartThings to change channel you have to to do a full hard reset (little red push button on hub) but I have not done that.
I believe both hubs simply choose which ever channel they see as having the least noise at the time when you first setup the hub. They do not auto change after.
but that doesn’t mean all different devices will work with that channel from what I am seeing.
on a side note I am having some luck with another repeater (with the Xiaomi) the SYLVANIA plug or north of the wall (Canada) sylvania plug for a much cheaper and easier way to add a repeater. But it has only been 2 days so far with out issues. and no doubt about the UL certificatrion.
I also am noticing some devices will not re-pair to a different repeater or back to the hub if the original repeater it paired through fails or drops the device . Running a test with my SmartThings Arrival zigbee sensor to confirm.
So basically depending on the device just throwing up more repeaters will not extend the range of a device you have to make sure you pair through the repeater at the outer most range that you want to use.
again I do have devices that do re pair like the SmartThings door sensors but Arrival sensors do not appear to (will confirm in a couple of days) nor does Xiaomi .
note: if changing zigbee channels save a back up of your hub first as it can mess up your zigbee option and cause you to do a full zigbee reset and have to re-pair all of your zigbee devices. But instead if it does just fail back over to your saved backup and then you do not have to re-pair all your zigbee device.
I have not tested all the channels to see which work better so far only 20,21,25,26 but maybe 13 is the lucky one it all really depends on what devices you have
