Telegram X is the standard Telegram instant messenger app on Steroids
It is not your normal bet aversion of the same app.... Telegram maintains this experimental version as a separate app. They test out new features but it does log into and work with your existing chats and contacts. You could run both or delete the standard app if you wish.
The article at http://www.dignited.com/28157/telegram-vs-telegram-x/ highlights some of the newer extra features whilst at https://www.testingcatalog.com/blog/post/amp/18 the do a detailed feature by feature comparison.
|Telegram vs Telegram X: Telegram tests new features with new official experimental app - Dignited
Telegram X is now official! This experimental app once known as Challegram packs some cool features not found in the main Telegram app. Find out what exactly is different.