(E-Mail Removed) wrote on Oct 8, 2010:
>
> Yes, I do want an intelligent discussion. I'm not trying to make one
> brand look better or worse, but I am being honest about my horrid
> experience with Tomtom GPSs. I got much less lost and confused when I
> had to just rely on the old paper maps.
[snip]
> If I hear that Garmin is
> reliable, I might get one if I find one on sale. So far I have heard
> little bad about Garmin, but I want lots of honest replies. Not just
> what the salesman has to say.
>
Well here's one (hopefully honest) reply:
I can't make any direct comparison between the two brands as I've never used
a Tomtom, but I can say that I've used a variety of Garmin units to navigate
all over the UK and western Europe, and had very few errors of any kind.
Occasionally the unit has got traffic regulations wrong (i.e. one-way streets
etc.) and sometimes new road developments are not up to date, but this is
quite rare. Certainly I have *never* had the kind of problems you describe -
being directed onto non-existant roads etc.
*However*, I would not necessarily dismiss Tomtom in favour of Garmin on the
basis of this. With respect, I think that you are confusing two quite
separate issues here. The first is the design of the gps unit itself, and the
second is the accuracy of the mapping data that is installed on the unit, and
I think it is the latter that is the problem in your case. No sat-nav unit
can function properly if the maps are not accurate, and this will vary from
one geographical region to another. My impression is that map data in Europe
is generally a lot more accurate and up-to-date than in the U.S. but I may be
wrong about this.
There are two major organizations producing digital mapping data for satnav
units. The first is Tele Atlas (used by Tomtom) and the other Navteq which is
used by Garmin. It *may* be that Navteq produces more accurate data for your
area than Tele Atlas, in which case a Garmin unit would perform better, but
this is by no means certain.
You should be able to find ou yourself if it is indeed the map data that is
at fault on your unit. There should be some way in which you can browse the
map installed without doing any actual navigation (all Garmin units will
certainly do this). Examine the map on your Tomtom in the exact place where
it directed you along a non-existant road for example. Does the (imaginary)
road exist on the map? If it does, then that is the problem and not the unit
itself.
--
Mike Lane
UK North Yorkshire
mike_lane at mac dot com