A feature within the iPhone 4S that hasn’t been mentioned much is its support for the Bluetooth 4.0 standard, which was announced back in 2010 and focuses on powering devices that use low energy and many sensors that are powered by button cell batteries. Devices for which Bluetooth 4.0 has been designed include glucose meters, heart rate monitors, and pedometers, amongst others. The iPhone 4S is the first iDevice to support this new Bluetooth standard, which will be branded as Bluetooth Smart (Bluetooth Smart Ready for devices capable of supporting Bluetooth 4.0). The only other Apple products to support Bluetooth 4.0 are the newest Mac Mini and MacBook Air models, while the iPhone 4S is the first ever smartphone to support the technology.
Bluetooth SIG will be marketing Bluetooth 4.0 as Bluetooth Smart by placing the new Bluetooth logo on the packaging of devices with a Bluetooth 4.0 compatible radio to help consumers easily identify them. The Bluetooth 4.0 technology is expected to be implemented in other new devices within the next few months.