Bluetooth 4.2 brings privacy enhancements, better power efficiency, data throughput increase of up to 2.5x with a packet capacity increase of 10x.
It's unclear how the spec on the devices has changed. Perhaps a firmware update has enabled Bluetooth 4.2 support; however, some reports have suggested new hardware would be needed.
We'll let you know if we learn anymore details on the bump. Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.
Read More [via 9to5Mac]