First charge from 100% results.. 2 hours 57 min usage 9 hours 46 mins standby Worked out for an hour on LTE streaming music through Bluetooth device. Battery was @ 19%. Unacceptable. 2nd day I charged to 100% over 24 hours ago without using LTE this time and the results were much different. After the first 16hrs and 33 min’s standby with 2 hours and 33 min’s usage my battery life was @ 61%. Then after a little over and hour workout using the workout app and streaming music through Bluetooth the battery went to 52%. Not bad. Then just now..after 1 full day and 1 hour in standby (25 hrs) and 5 hrs and 51 min’s usage my battery is @ 25%. That is excellent and more like how my Series 3 performed. I will test again after charging to 100% and run the workout app and stream music over LTE using Bluetooth headphones and see if it was indeed the LTE that drained my battery so badly the other day or if the battery is just going through a “break in” period. I’m very happy with the battery results without using LTE so if my results show LTE was the culprit I guess I will just need to refrain from using LTE and cancel service. It’s not a necessity anyway but I do like the idea of not always having to be tethered to my iPhone at all times and still being connected.