I liked this watch at first, however after using it for a few days I really didn't like it. It didn't stay connected via bluetooth to my phone and would only work about half of the time. If you do NOT have a sim card this watch is all but useless. Since I've gotten a cheaper smart watch, I haven't used this watch at all, and will probably pass it along to someone else. Maybe this watch wasn't for me, but I didn't like it.