At the rear of the light cluster there is a small display, including a battery gauge, ABS indicator, LR indicators, freewheel light (not sure of the relevance), lights on indicator (very useful, I often leave the lights on) and a phone image which lights up when you receive a call. No need to pair your phone, so no idea how it works.
The braking system (ABS) is very good. The 48 volt bike had a servo assisted rear brake, which would stop you dead, but lock the wheel. On my new 68 volt bike you squeeze front or rear lever and you can feel and hear the motor rapidly slow you to 3 or 4 mph, continue squeezing to stop. Quite innovative, perhaps we will have this on export bikes soon.