Paceora The full picture
Writers are the ideal desk-walking users. Long, low-intensity sessions at 1.2–2 mph. The A1 Pro handles this perfectly. The X21 adds comfort for professional writers who walk 90+ minutes daily. The C2 is a compromise — it works, but writers who use it daily eventually wish for the A1 Pro's stability. The R1 Pro and X25 add capability writers don't need and compromise they don't want.
The Paceora angle
Writers lose sentences to phone interruptions. Paceora keeps the treadmill in the Mac menu bar, so speed adjustments happen without the writing app losing focus. For a role defined by flow state, that's the whole point.