Generally, an auto GPS is meant for in-car navigation. However, due to multitasking demands, most of the auto GPS in the market today are portable and can be used for hiking activities. Such devices, however, usually don’t have enough battery muscle. So take time to consider the size of your GPS display because a wider screen consumes more power. Most portable GPS models come with either 4.3 or 5-inch display and although a wider screen may consume a lot more battery power, the portable auto GPS can be easily charged with a cigarette lighter.

Portable auto GPS are not as handy as hand-held GPS. Yet the criteria for best auto GPS do not lie on handiness alone. Navigation instruction audio and announced street names are also part of the equation. Now, the best auto GPS units are always enabled for automatic routing of destination where you can just type up the place and wait for the system to figure out the best way to go there. How sick is that!

But the ruling factor is still the map quality, its accuracy and quantity. Good auto GPS models can provide for US, Canada and Mexico maps alone. You may also want to decide if you want to receive real-time alerts in your portable auto GPS. You might also consider if the unit has digital compass at hand.

Features, like voice command recognition, are to be considered for ease of use. Also most of the best auto GPS models have anti-glare technologies so can be used comfortably in any time of the day. For reliability, try to check the portable auto GPS’ lock duration and how many seconds it takes to locate positions.

Homing in on the best auto GPS can be tricky, considering there are so many to choose from. Click here to learn more about what to look for in in-dash and portable auto GPS.

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