POIs are the various icons you see on the map by default – like restaurants, bus stops, lookout towers, and many more. That’s what "Points of Interest" (POI) typically refers to.
What you meant, however, was a saved place – a point you manually created and saved. But you didn’t specify that clearly, and instead wrote “POI” in parentheses, which confused us a bit.
So just to clarify: saved places currently do not appear on the watch, but built-in POIs do.