Motoring, Walking, etc, GPS devices...

Hello Chums and Chumesses...
...!
Having got very used to Flight Sim flying all around the World, every day, using on-board Satellite Navigation for updating my precise aircraft position on an accurate terrain map....
...I would welcome any suggestions of a similar, low-cost, hand-held/pocket, non I-phone!, Garmin, Tom-Tom, etc, product for use on my Motorcycle excursions around the English countryside, on road and off road!
(Using a paper Map for reference doesn't show my present location!)
It would be useful to display a detailed "Ordnance Survey" style Map of roads and terrain...similar to the Flight Sim GPS Maps, showing my location in real time!
Many of my trips are on; "unclassified" roads!
Any suggestions?
Paul...lost in space....and probably time!....
...!
Note: I only carry a simple, £25, pay-as-you-go; "Mobile Phone" for emergency breakdown telephone calls....(no expensive i-Phone-type gadets!).

Having got very used to Flight Sim flying all around the World, every day, using on-board Satellite Navigation for updating my precise aircraft position on an accurate terrain map....
...I would welcome any suggestions of a similar, low-cost, hand-held/pocket, non I-phone!, Garmin, Tom-Tom, etc, product for use on my Motorcycle excursions around the English countryside, on road and off road!
(Using a paper Map for reference doesn't show my present location!)
It would be useful to display a detailed "Ordnance Survey" style Map of roads and terrain...similar to the Flight Sim GPS Maps, showing my location in real time!
Many of my trips are on; "unclassified" roads!
Any suggestions?
Paul...lost in space....and probably time!....

Note: I only carry a simple, £25, pay-as-you-go; "Mobile Phone" for emergency breakdown telephone calls....(no expensive i-Phone-type gadets!).