My electronics doesn't have a GPS features,.. I plan to get reflectors, reflective tapes and orange flag. I know the GPS handheld very expensive at every stores. I watched YouTube video about someone ride on my train line, they showed a handheld GPS.
Electronic features:
Battery indicator
Speed meter
Mileages meter
Clock
Tilt control (Profile 5)
Profile 1 to 4 (slow to fast speed)
System configure menus
The backpack electronic box is for ALM controller (seating position), the drive controller under of my seat in the rear (covered), the techie can access to electronic backpack to check any errors, system status and etc.