Samsung’s new Galaxy Tab S tablet
Samsung’s new Galaxy Tab S tablet is finally here. The Tab S is also thinner than other leading tablets, at a quarter of an inch (6.6 millimeters). The model with the smaller screen is lighter, too. The tab uses a display technology previously limited to smartphones. It’s called AMOLED, for active-matrix organic light-emitting diodes. Samsung released an AMOLED tablet in 2012, but it was expensive and dint raised many eyebrows.The new ones are priced more competitively. AMOLED screens are more expensive than conventional LCD screens, but they produce richer colors. They also require no backlighting because the individual pixels produce their own light. That eliminates at least one layer of material and contributes to thinness of the tab.
No backlighting means the screen is able to produce a true black. On LCD screens, black isn’t really black, but more like a patch of night sky with a hint of light from nearby stars. Lack of backlighting also saves power, at least for darker images. On the other hand, on conventional displays, AMOLED screens tend to need more energy to match the brightness. So images with a lot of white and bright colors might actually drain the battery faster. On the 10.5-inch model, the battery level drained to 80 percent after displaying a mostly white Web page for two hours. By contrast, it drained to just 92 percent with a mostly black Web page.Amoled screens have a few other drawbacks too.They don’t perform as well outdoors. . Caucasian faces sometimes look too orange, for instance.
Both S models have a resolution of 2,560 pixels by 1,600 pixels, which is the best and translates into sharper images, particularly noticeable with text. But beyond a certain point, it’s really hard for the eyes to tell. Meanwhile, the Tab S lets you control a Samsung smartphone using Wi-Fi. Another noticeable feature of the phone is to unlock the device with a fingerprint scan instead of a passcode. The Tab S supports up to eight users, each of whom can store up to three fingerprints. It would have been neat for the tablet to automatically pull up the correct profile based on the fingerprint used.