It's called NFC (near field communication). Totally different from either below. You have to hold the watch or phone close to the device
John Sent from my iPhone > On Sep 19, 2017, at 10:09 AM, Harry Jacobson-Beyer <[email protected]> wrote: > > What technology transfer data from your phone to the credit card reader in > the store, Bluetooth? Wifi? > > Sent from my iPhone > _______________________________________________ > MacGroup mailing list > Posting address: [email protected] > Archive: > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mail-2Darchive.com_macgroup-40erdos.math.louisville.edu_&d=DwIFAg&c=OAG1LQNACBDguGvBeNj18Swhr9TMTjS-x4O_KuapPgY&r=F2GFXrjLFqVo3VwvIlo_XYeEiRRjHv15rxcenz7A21woG2aFGcrzndoSsskxfmOs&m=o6qrNtJBLwbpzcIzQMTtOt_dLOWzdfbgob_uzFwO-Bo&s=J3apRkeRPS9VG-thxVd3II_CcOr3CssHOnsrD0zgt1w&e= > > > Answers to questions: <http://erdos.math.louisville.edu/macgroup/> _______________________________________________ MacGroup mailing list Posting address: [email protected] Archive: <http://www.mail-archive.com/[email protected]/> Answers to questions: <http://erdos.math.louisville.edu/macgroup/>
