It depends.
If there are no limits to your teleportation and limits to what you can bring with you then teleportation is way worse than invisibility.
Even if the one that you're stalking saw you it wouldn't matter, you could teleport anywhere and any time and always be looking over them.
Oh you're hungry? Just quickly teleport to a restaurant and steal a plate of food and teleport back.
Gotta take a piss? Teleport to a bathroom and come back.
Forgot to bring your camera? Just teleport to a sightseeing spot and steal a camera and come back.
Oh your target found you? Big deal, you can teleport to get some chloroform and come back and subdue your target.