Among the various wireless options for wearable devices, which one needs to connect to a smart phone and is the most popular?

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Mr. Dubey

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Q. Among the various wireless options for wearable devices, which one needs to connect to a smart phone and is the most popular?

(A) bluetooth
(B) wifi
(C) rfid
(D) none of the above

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✅ Correct Answer: (A) bluetooth

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