Widgets exist to offer quick access to certain features in the apps we use most. On the Samsung Galaxy Note 4, home screen widgets let me do pretty much anything, from checking the forecast to browsing my emails.
Most new Android devices come with at least one feature that helps control navigation, music, and more through voice-controlled, hands-free communication. While they usually don't end up being completely "hands-free," these apps do stop people from using both hands to perform tasks on their smartphones while driving, therefore distracting them less overall.
If you like free stuff and own a Samsung Galaxy device, then you're entitled to two free popular movies in the Google Play Store—but you better hurry fast, because there's only a certain number of free downloads available.