Note that for my testing, I tested within Zwift itself of course, but also did test connectivity to TrainerRoad with an ERG workout (in the accuracy section below), as well as broadcasting to a Garmin watch, Suunto watch, and Garmin bike computer. All recorded the data without issue. Inversely, I compared the data from the chest strap I was wearing to the data re-transmitted by the Zwift Hub One (using the bridging function) to ensure they were identical and without meaningful lag.