I am happy with The Junsun V1 Pro. It works better than I expected. 2GB RAM seems to be enough. And 8-core CPU is fast enough as well. 4G GSM module works well. Only GPS module read data a bit slower as I expected. I think, it is because of his location under the car dashboard. There was one minor issue with settings, seller helped me to solve preety fast. Only one thing, what I don't like, it is rear camera resolution. In summary, I like this machine. Thank you. :)
Delivered in 7 days, item as described and works well. Only "tuning" necessarry - yellow wire in the main connecotor needs to be connected to BAT+, not to ACC+, to avoid booting of the device with the every engine start.