It looks as though the calorie burn is based solely off cycling (not that I can blame Xert at this point), but it would be nice to have more accurate calorie burn info for running.
For example, my 10.5mi easy run this morning burned 1,018 calories per Garmin & Strava, while according to Xert it was 1,464 calories. At such a low HR/effort level there’s just no way that calorie count is accurate.