iPhone: Awkward iPhone rausholen, type in code, search app for Compass, a pivot 8, and find direction for hope.
Liquid makes finding the bearing little slow, the bubbles in the compass does not bother me - which is in any liquid compass in it. If nothing is leaking well. With me for a year nothing.
And here there is finally no stupid thermometer as the CTC-01 from the same manufacturer. So no point deduction, but full 5 stars for high usability and durability!