The Wahoo Rival was advertised as being able to replace the “foot pod” because it has a built in speed and cadence sensor.
Seeing as it is not compatible with Zwift at the moment and that it does have the speed and cadence sensor, would it be possible to request that the Zwift team considers adding it to the compatible watches through updates in the future?
Either way, I love the Zwift platform and think you guys are doing great! I’ll continue to enjoy Zwifting on my bike 
and use the foot pod for running. (But it would be awesome if the Wahoo Rival was added 
)