I have a NAV 5 and a NAV6 for reasons not further to be explained in this very forum.........
Anyway, I had the impression that the NAV 6 is by no means faster than its predecessor and that the only difference is the better screen. So here are the parameters
- connected to external power
- firmware latest level
- latest maps
- settings identical (avoid dirt road and interstates)
- NAV 5 about 1.5 GB internal memory and NAV 5 more than 5 GB available, so enough in both cases
- Routing point to point from Melle Germany to Plauen Germany (about 420 km)
NAV 5 _____________________________2 min 16 s
NAV 6 _____________________________2 min 24 s
So suspicion is confirmed, NAV 6 in this single benchmark is 5 % SLOWER.
Another test to evaluate the impact of Garmin Smartlink with traffic and weather enabled
NAV 5 ___________________________ 2 min 48 s, 23 % performance drop
NAV 6 ___________________________ 2 min 58 s, 23 % performance drop
Both NAV calculated the same travel time and distance, so no differences in routing strategy that are visible to the user.
If you are OK with the visibility of your NAV 5 screen and you don' t need the only truly new feature 'round trip', stay with your NAV 5, the NAV 6 is way too expensive in relation to what it offers over the NAV 5. Lotsa hype, no gain.
Smartlink is not only a cell battery hog, but reduces dramatically the performance of both NAVs. Use it wisely..............
Please have mercy with BMW/Garmin, they only want your money, nothing more.
Since I ran out of bike improvement projects, I thought I mess a little bit with stuff that I have and I hope a few might find this interesting.
YRMV and JMHO
: This report only represents my views and the aforementioned performance measurement were not taken in a controlled environment and will likely not pass a peer review. I do not intend to challenge BMWs/Garmins claim of a significant performance improvement or accuse them of false claims.