Summary: I love all there gps the 810na is a very good gps I own two of them you just can not beat the quality I also own a 500 and two 310s and will buy whatever thet put out I collect navagation devices I have used magellan tomtom garmin cobra nextar and none compare to the harman kardon line of GPS the only proplem I have found was the battery life could use improving other then that use should not be afraid to buy one !!!!!!
Summary: First I have to tell you when you first buy the device leave it charge for 6 hours, then Update it ! it is really an excellent Device it runs on Windows CE and has plenty of extras (Video, Music and pictures) I would recommend this to anyone who is looking for a GPS with extras (FM Transmitter not that good but that is the case with all FM Transmitters ). The Blutooth is fantastic it syncs with almost any cell phone, import your Phone Book and etc.
Summary: This device is GREAT. I drive big trucks at work and the 5 button remote makes using this device easy to use without stretching over the dashboard to touch the screen. I also have an Apple iPhone and it works great with the new North American software update available on the website: [...] Many of my friends at work have GPS devices from Garmin.
Summary: I am a first time GPS user. I read all the reviews here plus at other websites and I was very hesitant in purchasing this unit due to the system locking up issue that most people has mentioned. But for me I was looking for a unit that had it all! And for right now, this is the only unit with GPS, MP3, Video, Pictures, and Bluetooth Phone connectivity.....
Summary: After months of searching for the right GPS product, I bought the HK 810 GPS. Currently, I'm using this in NYC area and never had any problems with it. Great device, Highly recommend to check the product out.