Small upgrades can be found if you pay close enough attention. For example, the menu screens can now be swiped to scroll and display more icons. The onscreen QWERTY keyboard is easier to type with, despite its smallish virtual keys, thanks to a more sensitive resistive touch screen.
There are also a few odd design decisions. For example, as I mentioned earlier, screen brightness controls can be quickly accessed with a quick tap of the power button. However, adjusting the volume (something that I feel more users will do more often) is located on the bottom bar of the main menu screen. So, for example, muting the volume and returning to the map screen while navigating requires a total of five button presses. Doing the same on a comparable TomTom requires but two.
Quirks aside, the Nuvi's interface is as easy to use as it's always been. I still like the large icon-based menu system that is designed to be used at an arm's length. There aren't very many menu options or available customizations, but the important ones are there and the shallow menu tree (only two levels deep) means that you won't spend too much time hunting around for things. And if that's not easy enough for you, nearly every menu screen has a help button located in the upper right corner to get you back on track.
However, the Nuvi's interface is starting to show its age. Upon closer inspection, the large cartoony icons display visible pixelation around their edges and text looks a bit blurry--particularly when compared to the glossy, high-resolution displays on the latest-generation TomTom devices. Odds are that you won't notice either of these issues when viewing the Nuvi by itself at highway speeds, but they bear mentioning. In the Garmin's defense, its matte-finish screen is more resistant to glare and the colorful goldenrod-and-gray maps with purple path overlay are extremely easy to see.
Without the assistance of cell towers or Wi-Fi access points, the Nuvi takes a bit longer to locate itself on the globe than a mobile phone does on its first boot. However, once it has locked into its position, subsequent GPS lock times are nearly instantaneous and always spot-on. Despite its longer initial lock time, the PND continues to excel over smartphones where overall GPS precision accuracy is concerned. I was surprised to see that the Nuvi 50 was able to lock onto its position within half a city block from a cold start while indoors. Our A-GPS-equipped and cell-tower-assisted smartphone was only able to get within two or three blocks without the aid of Wi-Fi. When used outdoors as it was designed to be, the Nuvi 50 was pinpoint-accurate even within the confines of the San Francisco Financial District's urban canyons. Even through tunnels and across the 4.5-mile covered San Francisco-Oakland Bay Bridge, the Nuvi was pretty much unflappable where positioning was concerned.
Our Nuvi 50 came preloaded with maps and Points of Interest (POIs) for the lower 49 United States. It also features a database of safety camera proximity points and can sound a chime upon approaching one of these red-light or speed cameras. If the chime is annoying to you, it can always be disabled in a menu.
We did all of our testing in the San Francisco Bay Area, so your mileage may vary on the accuracy of the Nuvi 50's routing. Path finding for short routes within the city limits was reasonably (but not blazing) fast, averaging about 3 to 5 seconds for trips within the city limits and about 10 to 15 seconds for trips of about 50 miles.
Thankfully, the Nuvi got us where it said it would every time. However, like most PNDs I've tested, the Nuvi's database of local businesses was missing many smaller restaurants and privately owned establishments (including a few establishments that I've frequented for at least three years). Connected navigation devices bypass the limitations by augmenting their internal databases with Google or Yelp search, but at this price point such functionality is simply not available. That said, the Nuvi's database is preloaded with millions of destinations, and users can add up to 1,000 favorites and custom POIs if necessary.
At an MSRP of $139.99, the Nuvi 50 is an example of the downward march of PND pricing. Five years ago, a 3.5-inch GPS device cost more than twice as much as this 5-inch, well-featured navigator. Every navigator in Garmin's line includes one free map update out of the box, so your new Nuvi will have the newest maps for your first trip. However, those who want to make sure that they always have the newest available map data for the duration of the device's life can step up to the Nuvi 50LM for $179.99, which adds Lifetime Map updates.