With no access to Google Play, I wouldn't buy the unit in the first place so they have lost an opportunity to sell anything at all to me...
LG G4: Android 6 : Viewranger : CoPilot : Waze
TomTom Go 730T : Traffic subscription long expired
Nokia E61 : Nokia GPS : TomTom Navigator 6 : Retired from duty
iPAQ 3970 : Navman Sleeve : CoPilot 4 : Somewhere in the loft