Having a rooted device just means that you have endless options when it comes to the customization of your device. You pretty much have not limits. This means that if you have an older phone you are still able to have the features of much newer devices. The latest versions of Android include an updated list of emoji. These include food, new hand gestures, animals and more! If you are rooted you can have the same emoji on your device. All you need to do is grab the EmojiOne TTF file and replace the NotoColorEmoji.ttf in your /system/fonts folder. Grab the Emoji package from the link below.
via reddit