is the same as OIS, but it's not clear, why they wrote it wrong, i saw in other page that this could be maybe the lumia 832 instead of 835, because the specs are almost the same(with less internal storage) and when changing from x00 to x05 always is to bring something better.
it is a typo, MS have updated the website Lumia 835 no longer exist. there is a Lumia 830 on at&t.
AnonD-330258, 27 Jan 2015Hey GSMArena.... That's not even O1S. It's 01S (zero one S)Hey saurabhDuzumaki...,
and what does '01S' mean in the camera description?
(it's a typo too)