Apple iPad Air vs Samsung Galaxy Tab 3 10.1
The iPad Air has a 5 MP camera, while the Galaxy Tab 3 has a 3 MP camera. In terms of camera UI, the iPad stays true to Apple's overly-simplistic design approach, and thus presents you with the bare necessities only. In contrast, the Tab 3 lets you do whatever you want with that 3 MP snapper – it has a rich set of options allowing you to tweak a lot of things, if that's what you want.
Naturally, the iPad Air has the benefit of the higher resolution, as it manages to pack slightly more detail with its images, though the difference isn't really that big. Colors are also a bit more realistic with the iPad Air most of the time, although, once again, the Galaxy Tab 3 doesn't lag too much behind. Indoors, the difference is much bigger, as the iPad Air takes well-exposed, usable images, while the Galaxy Tab fares much worse.
The Galaxy Tab 3 takes fluid 720p video, which is fine, but the 1080p footage of the iPad Air is better in terms of both resolution and quality.
Even though its display is inferior, the Galaxy Tab 10.1 does have a more suitable aspect ratio for video playback. You can achieve the same image size with the iPad Air, should you decide to stretch the video so that it fills the screen, but this would mean that the leftmost and rightmost edges of the video will be cut out.
The Galaxy Tab 3 has stereo speakers positioned nicely on the opposite edges when the device is held in landscape mode. The iPad Air also has stereo speakers, but their positioning next to each other practically eliminates the stereo effect. Even then, we prefer the iPad's speakers, because they sound way better, especially in the lower frequency range.