Electronics, as you found out, can and do malfunction. The weight/bulk of compass and map are quite small. I keep the map weight/bulk smaller by photocopying the portions of map(s) that I'll need, on both sides of the paper, and putting them in a plastic zipper lock bag to keep them dry. That also means that the original maps remain in an unblemished condition for future use safely back home. I don't care so much about the watch because over the years I've pretty well learned to estimate time from the sun. My main use for the watch is to keep me from taking a break after only 20 minutes of hiking!

As a card-carrying Luddite, I refuse to rely on any gadget depending on batteries, so the paper maps and the compass are all the navigation materials I need. The only batteries are in my camera and my headlamp.