How do I train with Trait on a treadmill?

Honestly: no device can really record a treadmill run reliably – that's not down to Trait, it's down to the technology.

• The in-app tracker needs GPS. On a treadmill you don't move from the spot, so no GPS device can measure your speed or distance.
• Some watches have a treadmill or indoor mode that estimates steps and stride length from your arm movement. That's only moderately accurate.

Our recommendation: Run your workout on the treadmill following the time and pace targets from your plan, and afterwards manually check off the planned workout in Trait as done. That way your plan knows the session is complete.

If you record with a watch in indoor mode, Trait analyzes whatever the watch delivers. If the values are implausible, that's down to the watch's data. In that case you can correct distance and duration afterwards: tap the run in the calendar → Edit (see Edit activity).