The Mio H610 is a personal navigation device which features a MP3 player and a digital still photo viewer. 'At 2.3x3.3x0.7 inches and 3.8 ounces, the Mio H610 more closely resembles a PDA or an MP3 player than a portable navigation system, which helps in its function as a handheld entertainment device though not as an in-car GPS solution (more on that later). With the compact dimensions, the H610 easily slips into your bag without weighing you down and feels comfortable to hold in the hand, albeit a bit slippery. The device also has a pleasing design with its curved edges and white casing (a la iPod).
There's a 2.7-inch TFT touch screen on the front that displays 65,000 colors at a 320x240 pixel resolution. Text and images were sharp and bright, but we noticed that it often picks up glare that makes it difficult to read the display. In addition, the smaller size of the screen doesn't make the H610 ideal for in-car use. It can certainly help in a pinch, especially when coupled with the voice-guided directions, but you'd have to look pretty closely at the screen to see everything on the map, and that's not exactly the safest thing to do while you're driving. We think the H610 is perfect if you're navigating a new city on foot and perhaps even if you're on a bicycle (though you'll have to come up with some kind of mounting system), but if it's a serious in-car GPS device you seek, we'd recommend looking at other systems.'
Read: Mio H610 - CNET