Follow-up 3mo · How accurate is it? With the vehicle stationary and parked under cover, the GPS accuracy is usually +/-100m, but can fluctuate +/- 200m when the signal is poor (has only happened once in about a month). I adjusted the boundary to accommodate this so it doesn't trigger the alarm. I'm comfortable with this, assuming if the device enters emergency mode it'll be updating location every 2 minutes and won't have the overhead cover blocking GPS so readings seem to be much more accurate. I drove the device for 1.5 hours before installing it and you can see the route taken quite accurately. How is the battery life? I still have 100% battery about a month after the last charge, with the vehicle mostly stationary. What features do you use? I've used the web dashboard for checking locations and configuration, including setting up the alert boundary. The mobile app is good for the boundary alerts. You do get an email alert as well so the app isn't strictly necessary.