I use a Carta 2, and the little session counter stopped going up after like 3300. That was like 5 years ago lol. The USB port doesn't charge anymore so I need to use wireless charging, but other than that, the thing is a beast.
I haven't smoked cannabis in nearly a decade
I haven't plugged the thing into a computer since I bought it and was told I needed to update the firmware, but I'm kind of curious if it has accurate stats about my usage...