Since stickers (whether WhatsApp stickers or Telegram stickers) are a form of emoji, they do not require storage space in the phone’s local gallery nor require a large amount of data bandwidth when shared. Moreover, users can also create animated stickers using GIFs and videos. But unlike emojis, which have a fixed design, users can fully customize stickers using photos from their local gallery. Stickers are very similar to emojis that you can use in your chats to reply. View more View less What are Stickers in Messaging Apps?