phone antennas

Do cell phones contain a separate antenna each for phone network, Wi-fi and Bluetooth?

Also, does Bluetooth include any security? Like, if a user is listening to his music through a Bluetooth link, can I pick it up, with my earphones? Or, more problematically, when he makes a purchase with Apple Pay?

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Rich D
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Each transceiver has its own separate antenna. Bluetooth5 allows for multiple connections from a single master. You can't eavesdrop -- the Bluetooth5 equipped smart phone must make the Bluetooth connection to both devices.

- Tom P.

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