The Speedo TR5 v2 treadmill has bluetooth connection with the FitShow App and it´s also compatible with Kinomap, which controls the treadmills elevation according to the terrain, that way, it’s totally feasible to zwift to do the same.
Doing a quick research, the treadmill implements a open iFit platform with 4.0 bluetooth that provides information of distance, speed, calorie consumption and other data.
Thanks Ana. I have the same treadmill and make the tests with FitShow. But with the Zwift don´t work.
Same here @Gustavo_Simon, with FitShow I can control my Speedo TR5, but while trying to pair with Zwift, it doesn’t find the treadmill as a connectable device.
I think you should vote on this issue if you would like to get it implemented by Zwift in the coming versions. I voted already. 
Do you have feedback on this treadmill?
I’m considering one for some small runs (1hr duration maximum, 5m/km pace average, 1.76m height). It’s a good choice?
The store offered one TR4 for me, but I’m not sure it would be enough for this usage.
Thanks.
Same here. I just got the TR5. Love it. Very nice treadmill to have it home. The store claims that it is Zwift compatible, however was never able to pair. Works fine with FitShow. Voted already. There is a Brazilian video on Tube that shows how to pair but never worked for me as well.
you can do it with QZ app! Join the QZ community on github!