Samsung has deliberately copied the Air to make a laptop as slim and light - and has half succeeded. It’s slightly thinner than the MacBook Air at the thick end (16.3mm compared to 17mm) but a lot thicker at the thin end (15.9mm compared to 3mm).
There are more than just a few similarities between the Samsung and the MacBook Air. There's only 3g difference in weight, it likewise uses solid-state storage and has an integral battery.
However, the battery in the Samsung 900X3A lasts longer, lasting 500 minutes in MobileMark 2007's Productivity test - an hour and three-quarters longer than the Apple.
Performance-wise, though, the two are again remarkably similar. Identical WorldBench 6 scores of 94 came as a surprise: the Samsung may have double the RAM of the MacBook but its newer Core i5 processor has two cores running at only 1.4GHz, compared to the Apple's Intel Core 2 Duo running at 1.86GHz.
Where the Samsung has the edge over its slender rival, though, is in the screen.
With its matt finish, it’s suitable for use in any lighting conditions, as a good ultraportable should be. The MacBook Air might give bolder colours, but it is more prone to reflecting light.
Graphics performance on the Samsung isn't all it could be, given that it’s being marketed as an entertainment all-rounder - the integrated Intel HD graphics chip struggled in our tests. It played FEAR at 24fps, but only after dropping detail settings to Medium.
Connectivity-wise, there's a USB 3.0 port for ultra-fast data transfer - this is handy if you need to expand beyond the limited 128GB SSD.
All of the ports are hidden below two hatches, one each side of the chassis, which flip down when needed and disappear out of sight when not, so as not to spoil the sleek lines.
Sadly, if you insert a microSD card into its slot in the right hatch, it cannot be closed to protect the port in transit.