Bluetooth 4.2 can even connect with internet very quickly

Bluetooth 4.2 is the new iteration in the data transfer technology. The new Bluetooth has measures to increase privacy, speed, and also brings IP connectivity to devices that support it, meaning sensors and other smart devices can connect straight to the internet. The new spec allows Bluetooth devices to connect to the Internet through newer home routers supporting IPv6. This should drastically simplify home automation, as it would avoid the need for dedicated Bluetooth hubs or devices with built-in Wi-Fi. Other improvements to the specification concern themselves with privacy and speed. With Bluetooth 4.2, Bluetooth beacons attempting to connect to and track your device can't do so unless you've given them permission. Transfer speeds between two Bluetooth devices have also improved by "up to 2.5 times" thanks to increased capacity for Bluetooth Smart data packets, which can now contain about ten times as much data as before. It was possible for existing Bluetooth 4.0 adapters to support Bluetooth 4.1 with a software update, and we've contacted the Bluetooth SIG to confirm that this is also the case for Bluetooth 4.2. Version 4.0 is still by far the most common version of the spec in shipping consumer devices, though mobile platforms like Android Lollipop have begun to add native support for version 4.1