The ASTOUNDING free Gibbon Gaze update from Tobii Dynavox allows i13 and i16 users to use their devices outside, even in bright sunshine. I was fortunate to have an i13 at the time the update became available so I recorded this video showing it in action.
At the time the video was made (summer 2020) and the time of writing (January 2021), the Tobii Dynavox IS5TD tracker remains the only camera that works reliably outdoors.
PS I’m wearing at hat but most people won’t need to.