I only see about 16 devices available in Firebase Test Lab and from Google I/O I got the impression that there were going to be more. There was specifically a question asked about this in one of the session Q/A. Are there more devices than the ones listed on the device selection screen and if so, how can they be accessed?
Currently we're using AWS which has several hundred supported devices including devices that are running on distinct networks and I was expecting something a bit more in that ballpark.