Smartphone giants released eye-catching new devices as the world's biggest mobile fair opened Monday, fighting for new ways to profit in a tougher market.
Visitors arrive at the 2014 the Mobile World Congress centre in Barcelona, on February 23, 2014. AFP Photo / Lluis Gene
Besides a slew of sleek, new premier smartphones, the world's biggest smartphone maker Samsung and its rivals unveiled an array of smart watches and bracelets to unlock new revenues.
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