One continuous route instead of several separate trips
Without waypoints, running an errand mid-drive means ending navigation, driving there manually, then starting a brand-new route to the original destination -- losing the running ETA and ongoing traffic-aware routing each time. Adding a stop as a waypoint keeps everything as a single trip, so the app keeps recalculating the whole journey, stops included, as traffic conditions change.
Order matters more than it seems
A navigation app usually optimizes turn-by-turn directions between the stops you've set, but it won't automatically decide which stop to visit first unless you tell it to. Dragging stops into a sensible order -- or using an automatic reorder option where available -- can meaningfully shorten a multi-stop trip versus visiting them in whatever order they were added.
Frequently Asked Questions
Is there a limit to how many stops I can add to one route?
Most navigation apps cap the number of waypoints per route (commonly somewhere around 8-10), which is generally more than enough for typical errands but worth knowing before planning a route with many stops.
Can the app automatically pick the most efficient order for my stops?
Many navigation apps offer an "optimize route" or "reorder stops" option that automatically arranges your waypoints in the most efficient order rather than the order you added them.