While no one is excited about a flip phone, though it does make us nostalgic people have raved about the release of foldable smartphones in the market. App developers will have to consider these devices when optimizing their applications for mobile. Another device that developers need to watch out for are wearable devices. Ever since the launch of Fitbit wearable devices have been on the rise. While Apple, Samsung, and Garmin are leading players it does not mean the market wont get more even competitive soon.

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