The Bolt is a nice unit, very reliable, great integration with RWGPS. I was getting 12 hrs usage typically, with a Garmin speed sensor as well as occasional navigating. It doesn’t use GLONASS, but I never needed it.

I only returned it as I was having trouble seeing the navigation cues on the bottom of the data screen and on the map screen. Wahoo reverses the text, so white lettering on black background. I couldn’t read that while wearing sunglasses. Possibly the larger Elemnt is better.

But overall a great unit, much more reliable then my Garmin 810. Functionality was more basic, but i really liked the RWGPS link.