BlueAnt Supertooth 3 compare

The BlueAnt Wireless Supertooth 3 is an excellent choice for a portable car speakerphone, especially since it will read out incoming caller ID so you can keep your eyes on the road.

Motorola's latest Bluetooth speakerphone comes highly recommended. However, competing models have an advantage in the voice command department.

For cars with an auxiliary input but no native Bluetooth, the GoGroove SmartMini Aux is an effective means of adding both hands-free call capability and audio streaming from a smartphone.

The Gogroove FlexSmart X2 is a good option, but not the best, if you're looking for a no-install way to pipe calls and music through your car stereo.