Yes, but if you do not press START, it drains the battery all the time, also in motion.
Wifi should be disabled automatically during motion
23.02.17 16:16:00 Deregistering wireless device (2,4 GHz): Wireless device not responding, Edge-820, IP 192.168.100.39, MAC 14:8F:21:A0:60:DC, Name: Edge-820. (#0302).
23.02.17 16:15:28 New wireless device registered itself (2,4 GHz), 65 Mbit/s, Edge-820, IP 192.168.100.39, MAC 14:8F:21:A0:60:DC, Name: Edge-820
In the setting, you should have an option therefore to save battery - that does not mean, it is per default without wifi