The Festival Effect is a new feature from Samsung which exclusively available in the Galaxy S5 LTE-A. When this effect is enabled, beautiful drawings and colourful balloons are displayed on the lock screen and in the notification panel which are related to special days such as public holidays, a user’s birthday or any particular anniversary. In the image below, the lockscreen shows an image of ripe fruits on a tree which is related to Chuseok, a major harvest festival celebrated in Korea. The Festival Effect can be activated in Settings > Sound & Display > Festival Effect.
The Galaxy S5 LTE-A was announced in June with a 5.1-inch QHD Super AMOLED display, Snapdragon 805 SoC, 3GB of RAM, 16/32GB of storage, 16MP camera with 4K video recording, Android 4.4.2 KitKat, fingerprint sensor, IP67 certification, 300Mbps Cat 6 LTE-A and a 2800 mAh battery.