Consider replacing my SW2 topic

Hi guys!

Time has come to replace my SW2. I like it very much even now, but I wanna make the step to Android Wear.

I would like to hear from you guys what's the best smartwatch out there in the terms of battery life. One thing I like about my SW2, is the battery life 5+ days with moderate usage.

Every oppinion is highly accepted! :)
Thank you in advance!