Brydge launched the Brydge and Brydge+ a few years ago. Now they are back with the Brydge Air for iPad Air and Air 2. With tons of new enhancements like a new unibody enclosure, backlit keys, and better speakers.

Pros

  • Slim as actual credit card.
  • E-ink display shows relevant card details.
  • No need to charge.
  • Security including on device pin code, and user validation.
  • Backwards compatibility with existing merchant hardware. No NFC required.

Cons

  • Must purchase new card when battery dies.
  • Still some merchants not compatible.
  • Possibility to get damaged in wallet