The advanced, insightful Jawbone Up fitness tracker

Hi. I'm Brian Bennett for CNET. And right now we're taking a first look at the new Jawbone Up 24 Fitness Tracker costing $149. The Up 24 replaces the previous Jawbone Up as the company's flagship fitness gadget. Don't worry though, the original Up isn't going away but will be sold for $129. It meant to be worn around your wrist all day long. The Up 24 can do all the tracking tricks the first Up handles. For instance, the device measures the steps you've take. Logs the length and quality of your sleep and is highly water and sweat resistant. It has the Up silent/alarm function too plus a power-nap mode. New features the Up 24 has includes wireless syncing with iPhones over Bluetooth 4.0. The Up 24 still charges its rechargeable battery through a headphone jack. Only now, it's a smaller 2.5 mm plug instead of a larger 3.5 mm connector. Jawbone says the device should last about seven days on a full charge. The main and only button control on the Up 24 has been retooled too. So that is bigger and easier to tap and press, holding down the key kicks the device into sleep mode. You then press it again to return to normal mode in the morning. If you forget to tap the Up 24 in the AM however, the gadget should be smart enough to automatically catch on that you're up awake and walking around. Paired with a new Up 3.0 mobile app, the Up 24 now keeps a running tally on short-term progress, which it call streaks. Basically when you're hitting your daily goal three, five or seven days in a row, the Up will acknowledge big accomplishments too term the milestones for say, when you hit one million steps or other impressive long-term feats. Since the Up 24 stays in constant communication with its paired mobile app and pays attention to your behavior 24/7. Jawbone says that after a week of wearing the gizmo, user should begin seeing tailor-made advice. For example, today I will message will prod you to drink more water or get to bed earlier if the Up 24 thinks you're slacking in that area. Other motivational tools in the Up 24's arsenal are ways to connect with other Up users, see their progress in relation to you and get relevant alerts pushed to your phone. I'm Brian Bennett for CNET and this has been a first look at the Jawbone Up 24. For more info, be sure to check out our full review.