Bluetooth speed probably isn’t the kind of hardware detail you’re interested in when buying a new computer or smartphone, including the iPhone 6s. In fact, Apple did not even talk about the iPhone 6s’s Bluetooth capabilities during its September 9th announcement event, though it did mention the Bluetooth abilities of the new Apple TV and remote during the event.
However, it appears the company did bump the Bluetooth speed from Bluetooth 4.0 to Bluetooth 4.2 on the devices it released last year.
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