ServiceDig

Auto on/off reliability

Best

#1
JBL Tour One M3 Headphones
Auto power behavior prevents unwanted battery drain.
#2
Marshall Major V
Auto power-off is configurable in the app, and one review also noted automatic idle or disconnected shutoff.
#3
Apple AirPods Max 2
Auto power behavior remains mixed: the Smart Case triggers low-power mode and preserves charge, but reviewers repeatedly criticized the lack of a physical off button.