Since the display of clamshells is hidden when the phone is closed, many phones include a secondary display on the outside. This display is of lower quality than the main display (lower resolution, may be monochrome, etc.). It is used to display various notifications such as the time, Caller-ID, missed calls. In many camera phones, the external display can act as a viewfinder to help frame self-portrait photos.
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Samsung Gear S2
fhallieNov 10, 2015
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Apple Watch
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Moto 360 Sport Smartwatch
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Nexus 9 Discontinued by Google and HTC
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ZUK Z2 gets Certified by TENAA
