Over 40,000km of long-distance riding with a phone as primary navigation, we documented every failure. Not anecdotally — we kept a log. Heat management failures above 40°C ambient: 23 incidents. Screen unreadable in direct sun without shade: daily occurrence. Notification interruptions during navigation: too frequent to count. Camera OIS failure from sustained vibration: two phones.
The phone is the wrong device for motorcycle navigation for reasons that aren't obvious until you've experienced them on a long trip. The most fundamental issue is that phones are designed to run multiple tasks simultaneously, and navigation competes with every other process on the device for thermal headroom. On a hot day, in direct sun, mounted to a vibrating handlebar, a phone is working harder than it was designed to work.
The myto navi started from that failure log. We didn't set out to build a navigation device — we set out to solve eleven documented problems. The device that emerged from that process happens to be a dedicated navigation unit. Single-purpose by necessity, not by philosophy. Everything in the specification traces back to a line in that failure log.
“The phone in your pocket is a remarkable general-purpose computer. That's exactly why it's the wrong tool for one specific job.”