Originally posted by: senseamp
I am very disappointed with touch screens on new Garmin Nuvis, to the point where I was ready to buy, but after trying decided to keep my StreetPilot C320.
In C320, I just need to touch the screen, I tried Nuvis and you have to apply some more force to the screen to get it to register properly, which is annoying, because it slows down street entry.
I think they need to work on getting a better screen.
First Gen Nuvi tends to have "faster" screen response, simply because they continue with 2nd Gen 3D UI interface. ( Nuvi 350, 650 and etc )
Second Gen Nuvi indeed has slower response by comparison, not because the they use lower grade touch screen, but its 3rd Gen 3D UI interface plus more option does slow it down a bit. However, 2nd Gen Nuvi has incorporate much better wide-angle display.
By comparison to 1st gen Nuvi, it is very noticeable better and able to view better in direct sun. ( I am sure you can read many side-by-side comparsion online )
( Nuvi 2x0, 7x0 series and etc )
Garmin notice the slowness of 2nd Gen Nuvi, they start using faster processor on all their 3rd gen Nuvi + 4th Gen 3D Ui. Animation has improve dramatically, UI is much friendlier, but Exact 1250mha battery use on 2nd Gen Nuvi now has shorter battery life per charge.
( Nuvi 2x5, 7x5, 8xx series and etc )
Garmin has continue to improved its GPS signal and by adapting to newer chipset.
Ex. C-series suffer from slow cold boot and accuracy and it is impossible to read in a sunny day. ( not even direct sun light )
Nuvi series also gone through several transistion from Aging SirfIII to Bravo to now new STM and MTK.
I guess what I am trying to say is... when you were testing the Nuvi, it is possible that particular screen has been abuse and coated w/ human finger grease. With most of Garmin line I have tested, they all seems to work quite smoothly.