Why is my battery draining so quickly?

I got my Lily last week and I love the look of it but the battery is dying so quickly. I had a Vivosmart 4 that would last for a week but this Lily is draining in about a day.

This morning it was fully charged and 2 hours later it's already at 95%. Yesterday is was fully charged and when I got up this morning it was at 50%.The pulse ox setting off.

I'm also having a lot of issues with the Connect App and the Lily. Yesterday the app couldn't find the watch at all when I went to set it for a walk. I have to delete the app and reinstall the watch, then it wouldn't connect to the app for GSP.

The Lily is a beautiful fitness tracker but seems like a lot of bugs. Disappointed