"Plantronics Voyager Pro is much better for less money!"1.0 starson by Headset_guru
Pros: Stylish but at the sacrifice of performance and usability
Cons: -Call quality is worse than Plantronics Voyager Pro
-Confusing buttons are less functional than Voyager Pro
Summary: My recommendation is to buy both the Jawbone Prime and the Plantronics Voyager Pro from a place that let's you return one of them. That's what I did.
The call quality Voyage Pro simply sounds much better and more natural in a wider variety of conditions (road, wind, crowd, music, etc). Call and leave yourself voicemails so you can hear for yourself.
Also the battery life is much longer and the buttons are much more straightforward and easy to control on the Voyager Pro.
Still its best to experience these attributes yourself, so again my recommendation is to just try both for a few days and keep the one you are happiest with.