I had notice that when riding on Zwift I usually get a a bit lower distance and time on Strava when uploaded. Like today I rode 17.0 Km on Zwift and it shows on Strava 16.9 Km same with time and also happen once using the iPhone app and riding outdoors. Any idea why this might happen, thank you.
Using Windows 10, Zwift and Zwift Mobile App all are up to date. With Wahoo HRM, Speed/Cadence Sensors on a CycleOps Fluid2 trainer.