7 things you need to know before buying the Samsung Galaxy S6

In a few weeks, the long-awared Samsung Galaxy S6 will go on sale. Here are seven things you need to know before buying one.

Its screen should be the best there is

The Samsung Galaxy S6's screen is the same size as the S5's -- but it's significantly better. The resolution of the 5.1-inch AMOLED display is a whopping 2,560 x 1,440 pixels, with a density of 577 ppi. That's the best screen you can find on a smartphone.

TouchWiz will tread lightly

Samsung has gotten the message that people don't like software overlays mucking up Android too much. So expect the Samsung TouchWiz interface to be light, and let Android 5.0 Lollipop shine through.

Say good-bye to plastic

Finally, Samsung has gotten rid of the plastic body on its flagship phone. The S6 has an aluminum alloy frame and sports Gorilla Glass 4 on both the front and back. It won't feel or look cheap any more.

Say hello to wireless charging

Tired of needing cables to charge your phone? You'll be able to charge the S6 wirelessly, using a variety of standards, including WPC and PMA. Samsung will sell charging pads, and the phone should work with other charging pads as well.

Say good-bye to waterproofing

Samsung made a big deal about the waterproofing -- water-resistance, really -- built into the S5. That's gone by the wayside in the S6. So don't drop it in the sink or bring it snorkeling.

Say good-bye to a microSD slot

Those who like removable storage will be disappointed with the S6 -- it doesn't have a microSD slot like its predecessor did. Still, you can get 32GB, 64GB, or 128GB models, and you also get 115 GB of free Microsoft OneDrive cloud-based storage.

Say good-bye to a removable battery

No longer will you be able to swap out a battery if you buy the S6. It's sealed in. The battery that comes with the phone is the battery you'll use.

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