The HiiKER watch app supports Apple Watch and Wear OS. For any other watch, use GPX: open the hike, tap More > Export GPX, and import the file through your watch’s own app. Routes transfer this way; map tiles can’t be sent to any watch. Galaxy Watch tip: if HiiKER keeps returning to the watch face when you raise your wrist, set watch Settings > Display > “Show last app” to the longest option, and map double-press of the Home key to HiiKER for instant relaunch.