Con There is no customer-service to help you if the UP2 has problems
The Jawbone UP2 frequently has quality issues and with Jawbone not having customer service, your only option is to return it to the place your purchased it from.
In September 2016, Jawbone was forced to end their deal with the customer-service agency due to non-payment. You can read more here.
Con Poor build quality causes it to break easily and quickly look worn
It can appear quite grubby looking after only a few weeks of wear and is extremely difficult to clean. The band has been known to break after short periods of time, and the device has a history of not working after only a month or two.
Jawbone will not honor the warranty if you purchased the device through Amazon.