In the Vine above are 7 devices all running the same compass app
(ironically named Steady Compass) on Android. Yet, all compasses
indicate that North is somewhere else. Unfortunately, this has
nothing to do with electromagnetic fields confusing the compass;
it has everything to do with the diversity of hardware inside
We have been developing Bounden for Android alongside its
development on iOS, and have tested the game on a number of
devices. It was only a week ago that we started expanding our list
of test devices, after we quickly discovered that:
(a) some devices had ‘broken’ gyroscopes that didn’t work on all
(b) that some devices were faking gyroscopes by mixing and
matching the accelerometer data with compass data, or
(c) that some devices did not have a gyroscope at all.
Curious, I grabbed a handful of iOS devices laying around my house — iPad Mini and iPad Mini with Retina Display; iPhones 3GS, 4, 4S, 5, and 5S — and tried a similar comparison.