A smart mobile device, also called smart phone, and smartphone, is a small electronic device that can be connected permanently to a cellular network, and has among others the following features: full keyboard touch or physical, operates with android operating system or another ( which can be upgradeable ) it is capable of supporting applications developed by third partiesallows access to an app store, allows Internet surfing, has free WI-FI, records and plays video and sound, sends and receives text messages, sends and receives written messages, videos and photos through an application called whatsapp, etc.
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