Display:
The display is weak at first glance and the backlight uses outside anything.
But that does not matter much, as the display similar to the previous LCD games is always legible. For mirroring the sun I dissemble and release the angle of the bike mount and the wars.
Tickets:
There are no useful maps here. But the Garmin allows other maps aufzuspielen.
I have Germany in the bicycle version of OpenMTB and in the OSM street version of Computerteddy on the device. The OpenMTB version provides a good representation for the mobile navigation on the wheel, while the other map for orientation in the city on foot or by car is better.
Navigation:
I plan my route using MapSource. For the route I use Viapunkte an accurate route guidance ensuring. 50 pieces per route rich loose 100 - 140 km routes. In addition, I then will walk the route on GPSies into a track. I invite both in the device and so I have a route and the safety displays the track, in the event that the Navi times while driving 'umentscheidet' itself.
The route can be excellently read while driving with the big arrows and also the track is clearly visible in the middle of the route.
Due to the good routing of the device I can super plan and know exactly how far and how long I have to drive.
Operating time:
The batteries will last very long, especially the Ultimate Lithium have proved effective. I have a pair of at least 20-25 hours of driving time without a battery saving mode ie not connected with constantly display and usually without backlight (except in the forest!).
Genial I find that when changing the battery while driving all incomplete data (Active Route / Track / trip data) still remain active, you thus after 20sec interruption can continue directly for changing the batteries.
Shelf life:
I am now about 2500 kilometers are driven with the Dakota 20 mostly on gravel and forest roads and it is maybe 3 times assumed spontaneously in time. But was immediately switched on again and kept going without complaint.
Features:
The card slot is extremely important, since the transfer rate is very slow in the device. I have on a 4GB card 2x Germany with about 950Mbyte and a contour map.
The compass can perhaps not a real substitute, but it ensures that you can orient well in the state.
The greatest weakness of the device may be that you have at the beginning, do not want to rely on payment cards, download a lot of maps and even customize it. I think that's not bad, and like the open structure of Garmingeräte. For the bicycle navigation, it is in my opinion an excellent device.
--- Update March 2012 ---
Bin after one year still enthusiastic about the device. Even at -10 ° C the device has worked smoothly in the winter.
My Dakota 20 also works wonderfully with a 16GB Transcend Micro SDHC Class 2 card.
Since then fit the world files of OSM completely on it.
