Share your phone's Internet connection through Bluetooth tethering

 

  Tethering refers to connecting  device like smartphones to other such as a laptop to share the internet connection  when a WiFi connection is unavailable. Tethering or mobile network sharing is possible in one of three ways at a time.
1.USB Tethering
   For  USB tethering, you’ll need to install device drivers on your laptop and PC, and then plug in your smartphone to a USB port.It does charging of phones also so there is no battery drainage but allows for only one-to-one connections, and requires an USB cable.

2.Bluetooth Tethering
    Bluetooth tethering is included as as in-built feature of Android since Android 4.0. We can share our internet connection through Bluetooth tethering,all you need to do is to turn on the Bluetooth tethering option and then set up the connection type on your smartphone Bluetooth settings.The speed depends upon the speed of cellular networks and devices. Like USB tethering, only one connection is allowed via Bluetooth.

3.WiFi Tethering
WiFi Tethering, also called Mobile Hotspot, is the one of the more commonly used forms of tethering, because connections to multiple WiFi-enabled devices is available through it. The smartphone that is connected to a mobile data network can be used  as a WiFi router, allowing for a one-to-many connection type. You just have to turn on the Mobile Hotspot on your device.