2 posts • joined Friday 21st October 2011 08:56 GMT
Bluetooth 4.0 is not the revolutionary hardware update that Apple may have you think. The truth is that most chips from 2.1 onwards are capable of of Low Energy or BLE as it's known in the industry. The change is simply firmware.
The power output is identical to 'standard' bluetooth, as the hardware is the same. This is also easily configurable, anywhere from -30dBm to +10dBm. Range has more to do with a decent antenna design to make sure the power is transmitted effectively, but just as importantly to make sure the receiver can listen.