Power Meter Advice - Stages vs 4iiii

Question for all 4iiii users. I’ve got a specialized left side ultegra power meter, made by 4iiii I believe. Got it over the winter. You can calibrate through the app, but my Garmin head unit can also calibrate. Does it make a difference one over the other? Head unit us much easier on the road and was used to that with the old vectors.