Top trends from Mobile World Congress – Russia's YotaPhone showed off an Android handset with an interactive e-ink display on its back.
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Top trends from Mobile World Congress – In addition to the Galaxy S5, Samsung announced the Gear2 watch, which ditches the Android OS.
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Top trends from Mobile World Congress – Samsung Gear 2, right, and at the Samsung Gear Fit. Like the Galaxy S5 smartphone, they came with the new ability to constantly monitor your heart rate, making them far more useful as training aids.