Until now, we are only talking about Android features in a general way. In this section, we will discuss some of the most common Android features found in Android phones and tablets. Each Android device is unique in some way or the other and possesses many unique features and components different from other brands and phones. But there are some features that are found to be common in all the Android phones. Many of these features can be used in our apps irrespective of any specific model or phone, and intent is, without any doubt, the most asynchronous and easy way to use these features in our applications. Now let's see the Android features that are common among many devices and their functionality in a phone.