My Pebble Time watch (sadly, no longer in business) has a compass app that I've used a couple of times. Maybe a smartwatch or phone could do the trick? https:/

My Pebble Time watch (sadly, no longer in business) has a compass app that I've used a couple of times. Maybe a smartwatch or phone could do the trick? https://apps.getpebble.com/en_US/application/540f7cafbc27450164000157 https://apps.getpebble.com/en_US/application/540f7cafbc27450...