Handy and easy to use, but don't put it on a water bottle with a straw
This works exactly as intended but I've noticed if I merely pick up my water bottle (as opposed to tilting it to my mouth) it won't track, and then I have to pick it up again and tilt it to make the blinking stop. Better for water bottles you need to tilt to get the water to flow, my Yeti with a straw isn't super compatible.
Rating: 4 stars