Coming from a Pebble I am very disappointed in the battery life of the Gear S2. I have done everything the recommend to get the best battery life. My brightness is set to 2, I only have 4 applications sending me notifications (calendar, Gmail, Message, and incoming call, and I use a black color watch face. I have never made it through a full day without it asking to put in power saving mode around 6 PM. I was hoping to use the Golf Pad app this weekend but am afraid it will not last through a full round of golf so I will continue to use my Pebble for that. I am dissapointed but yet how can I be since it was free.