Question

what is the use of smart phone​

Answer 1

He dude here is your answer
smartphone is a mobile phone can do more than other phone they works as a computer or mobile mobile what are mobiles are small devices enough and fit in a user hand uses :sending and receiving emails text photographs and multimedia messages

hope it is helpful for you
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Answer 2

Answer:

Sending and receiving emails, texts, photographs and multimedia messages.

Registering contacts.

Calculator, currency conversions, alarm, etc. functions.