Electronic bracelet

A bracelet configured to assist a second device in performing a near-field communication (NFC) transaction with a near-field communication (NFC) device, the bracelet comprising:

• a near-field communication (NFC) circuit configured to, in response to the bracelet being placed proximate to the near-field communication (NFC) device, exchange data related to the near-field communication (NFC) transaction with the near-field communication (NFC) device;
• a wireless communication circuit configured to wirelessly communicate the data related to the near-field communication (NFC) transaction to the second device;
• a power supply circuit configured to supply power to one or more of the near-field communication (NFC) circuit and the wireless communication circuit,
• wherein the near-field communication (NFC) circuit is configured to transmit, to the near-field communication (NFC) device, authentication information to authenticate the near-field communication (NFC) transaction, wherein the authentication information includes unique information included in a subscriber identity circuit of the second device, and
• wherein the bracelet is configured to (i) operate as a companion device of the second device, and (ii) use the unique information included in the subscriber identity circuit of the second device to communicate with the near-field communication (NFC) device;
• a plurality of display devices arranged along an outer surface of the bracelet;
• and
• a display circuit configured to display data on the plurality of display devices, wherein each of the plurality of display devices comprises a capacitive sensor configured to generate an output in response to touch;
• wherein the display circuit is configured to display, on the plurality of display devices, i) a first set of characters at a first time, and ii) a second set of characters at a second time;
• wherein the first set of characters includes at least one of letters, numerals, symbols, shapes, and colors;
• wherein the second set of characters includes a rearrangement of the first set of characters;
• and
• wherein the second time corresponds to one or more of the capacitive sensors on the plurality of display devices having sensed touch within a predetermined time.