The following are some advantages: 1. an appealing design; 2. portability; 3. precision in measurement; and 4. functionality. Cons include the following: 1. A relatively short amount of time spent working (one to two days); 2. Being occasionally cut off from the phone despite being in close proximity to it. 3. It is not appropriate for everyone (it fits better on women and men with smaller wrists than it does on men with larger wrists).