Pro Advanced metrics tracking system
UP4 uses Bioimpedance sensors that track respiration, perspiration, hydration, skin temperature, heat flux, BMI, and can even sense which activity is being done. For instance, UP4 can identify sports like tennis and log the information automatically.
Pro Integrates with an impressive list of third-party apps
Jawbone app allows data from third-party apps to be imported as well as Jawbone's data to be used to supplement other apps. When activity is logged in a third-party app it will show up in Jawbone app's feed to give a complete overview of fitness and health situation. Some of the integrations include Runtastic, MapMyFitness, Strava, Nest, Kiqplan, Wello, and others.
Pro Allows setting goals, alerts and reminders in order to motivate
There are multiple ways the app tries to motivate. First it asks to set goals and if you are struggling in achieving them, you can set the tracker to remind or alert you via notifications of your connected device or vibrating the wristband itself.
Pro Can be used to log workout
To automatically track a timed activity, you can set the wristband in Stopwatch mode by pressing + long-pressing the button. You can also enter the activity manually from the app by supplying information on the activity type, effort level, start time and duration.
Pro Accurate step counter
UP3 has a very low margin of error when counting steps. For example, it won't count arm movements towards total step count as many other fitness trackers tend to do. As such it will be able to provide more accurate data on calories burned, time active and distance traveled.
Pro Integrates with IFTTT
IFTTT (IF This Then That) is an automation app. By integrating it with UP3 you can get functionality like turning lights on in your room when you wake up, creating a chart of all your data and uploading to Google Drive, log a meal when you check in at a restaurant on Foursquare, etc. You can see a list of over a 1000 public recipes here.
Pro Real-time Bluetooth 4.0 syncing
Bluetooth syncing removes the hassle of having to take the device off of the wrist and putting it back on again multiple times throughout the day. It also allows the device to send notifications to the phone. Bluetooth 4.0 is a great benefit to UP4 users because it doesn't use as much energy as previous versions, which will boost battery life.
Pro Advanced sleep tracking
UP4 is capable of detecting light, deep & REM sleep. Correlation between activity and sleep are also recorded so Smart Coach can make personalized sleep recommendations in the future.
UP4 can automatically detect when you go to sleep based on lowered heart rate and lack of movement or sleep mode can be set up manually. While the automatic sleep tracking is in most cases sufficiently accurate and will get more accurate over time, start and end of sleep can be also adjusted after the fact if the tracker doesn't get it right.