1. Globaltop HG-100 Bluetooth HUD
The Globaltop HG-100 Blu etooth HUD is a modern and advanced GPS speedometer that has lots of positive reviews and comments on the web. It has a large LED display and the digits appear very bright, and clear on the screen. The speedometer features Head Up Display (HUD). It is a technology that has mostly been used in airplanes only. What it does is that it allows the users to look at the information, without looking away from their viewpoints. Look at the picture at right and see how information is displayed in front of user’s viewpoint.
Another nice feature of this device is that it is powered both internal rechargeable batteries and car’s 12 volts battery. This makes it possible for users to use the speedometer away from their car to display speed information on a smartphone, or a laptop while cycling, boating or trekking. The battery life is 7 to 9 hours, which is very good. The speedometer reads out speed in MPH and KPH, and it has a function switch to set speed units and speed alerts. The speed alert function is very useful and you can configure a maximum speed when the device should alert you. The speedometer also has a compass display that indicates E, W, N, S and intermediate points. This is another plus point in the device, as this makes your navigation more precise and a lot easier.
There is a power on/off switch on the speedometer. You need to turn on the device in the car; it doesn’t turn on automatically when you start the car. It would be nicer if it could power on and off with the car’s ignition. There are 3 LED lights on the device. These show power, GPS and Bluetooth statuses. The installation is very easy, and is a simple do-it-yourself task. The speedometer costs US $82.99, and you can buy one at dealextreme.com.