The watch is very good, but be sure to check this thread: https://forums.garmin.com/forum/on-the-trail/wrist-worn/fenix-5-5s/1229809-realistic-battery-life-fenix-5/page7
Many of us recently experienced a huge battery drain with new devices - in my case I had to return 2 watches for that reason. The third one, for now, seems to be OK...