The addition of Bluetooth 4.2 to the iPhone 6, iPhone 6 Plus, and iPad Air 2 is actually extremely notable for those who own those devices. Bluetooth 4.2 promises to deliver 2.5x faster transfer speeds and up to 10x greater data capacity over earlier versions. There are some corners suggesting that the improved data transfer and data capacity capabilities would require a physical hardware upgrade within the device itself. Regardless of how it has been achieved, the product pages for those specific products now confirm that users will be getting Bluetooth 4.2.