I was so pleased by this alone, I feel the watch is worth having that gadget alone for the price.-as a notifier, which is mainly all I wanted, this seems to work quite well-battery seemed to last the full day (time will tell if it get worse over time, but at least it managed a day on my first day using it) but not sure how long it would last on standby only as advertised-separate battery provided at no extra charge, which means if one dies you can swap it out and have 100% again, or use the other battery once the first one stops holding charge well-syncs time and date with connected phone-my Package came with a watch screen protector (not listed as a feature)Cons:-Looking at the reviews, most people haven't figured out the directions on how to connect their phone to the watch