+1 for standard compasses. I'm possibly a bit of a Luddite but I try to never depend on anything that uses batteries: If it uses batteries, I always take along a simple, non-electronic backup or do without. I have used a Silva Ranger compass professionally for over 40 years. It is a magnetic, liquid damped, mirror sighting compass. I am still using the one I bought in 1965. It has never failed me. And, I can use the mirror for shaving should I feel the need.