In this article, we will see how to check the data balance in Airtel with simple and easy steps. There are two ways you can achieve this. Check the data balance in Airtel using your Smart Phone Keypad Check the data balance in Airtel using Airtel App Now let us see how to check the data balance in Airtel using your Smart Phone. Check the data balance in Airtel using your Smart Phone Keypad. In your smartphone go the dialer option select the keypad as shown in the below image. Here you can see there are three options available for you. Keypad Recent Contacts Here you can choose the keypad option as shown in the below image. Once it is done, using your mobile keypad just type a special character * and 121 then type one more special character # as you can see here in the below image. After that, you can click on the dialer option it will show you the below popup window. Here you have to choose option number 2 balance. You can jus...