Walking and transit
Routes come with the facts a map usually leaves out: the shape of the walk in a sentence (“mostly two long straight stretches”), available map details about crossings (signals, tactile paving, islands), stairs, underpasses, and which station on the same line is easier to board at. Several options are read out, so you can choose what suits the way you move.
On the walk, a companion calls the turns in advance and again at the corner, names the streets and landmarks you pass, notices when you have walked past a turn, and lets you ask questions on the way. The phone camera or Meta Ray-Ban glasses can add a live view of obstacles ahead. Where the phone's position is poor, you can correct it yourself: say which side the traffic is on, or pick the place you are next to. In daylight a camera fix can also help refine your location (Istanbul only so far).
For buses and the metro: nearby stops, scheduled departures, line directions, and a ride mode that calls out the stops until yours. Live bus positions are available in supported cities. In Istanbul, metro lift and escalator outages are included too.
Route information depends on available Google Maps and OpenStreetMap data and may be incomplete. Testing has focused on Istanbul.