Garmin 800 enduro with OS maps or the Garmin road maps inc European maps?


New Member
Jan 6, 2013
I am deciding between buying the Garmin 800 with OS maps and the Garmin 800 with road maps (inc European maps). I originally thought I would buy the one with the OS maps. What are people's experiences?
I would use it for:
- long road cycle rides in the UK (main use)
- commuting in London (also main use)
- walking/hiking (less so but would be useful and really great to have the maps).

For example, if I am commuting in London will having the OS maps on the enduro version be a problem?
Will I not be able to see clearly which roads to take and will the detail of small urban roads be less on this version?
Can it also be used for running?