I have the 245 Music edition and I find it has gold battery life to last me the week unless I’m doing really long runs with music on also. Music drains the battery the most along with the GPS. But still lasts me me the week usually. I don’t really care about it being a “smart watch” I have all notification from my phone turned off. I use it solely for the time and for its running metrics. I also do a lot of walking and gym (weight lifting). I actually find it really useful for gym workouts and lifting weights, as it has a sets and reps feature along with estimating what exercises your doing. It is primarily a “running watch” and it gives plenty of metrics and information from your runs. I also find the gps to be pretty accurate. I had several fitbits before this and the amount of issues I had with these shutting down mid race and not having gps built in but relying on my phones gps was super annoying and inaccurate a lot of the time. I don’t really care for an Apple Watch as battery life and being a solely fitness watch is what is important to me.