Emoji support is dependent on the version of Android that you are using, since emoji is a system-level font. Each new release of Android adds support for newer emoji characters.
Android 4. 4 - 7. 1+ - Devices running 4. 4 or later can use the Google Keyboard to add emoji. Your device’s built-in keyboard likely has an emoji option as well. Character availability and style are determined by your Android version. Android 4. 3 - You can enable the iWnn IME keyboard to type black-and-white emoji characters. You can also download a third-party keyboard to insert color emoji characters. Android 4. 1 - 4. 2 - You can view certain emoji, but there is no built-in keyboard option. You may be able to use a third-party keyboard to type emoji. Android 2. 3 and earlier - Your device does not support displaying or typing emoji.
If you don’t see the smiley face, your device may not support emoji. You’ll need to try another keyboard instead.
S7 users can simply tap the ☺ (Smiley Face) button on the keyboard to open the emoji options.