The Realme X was unveiled earlier today and we have a full review if you want to know the details. If you just want the highlights, then this promo video is what you're looking for. It's just over a minute long and covers all the key points - from the in-display fingerprint reader to the pop-up selfie camera. With a 6.53" OLED display, the Realme X is larger than the Realme 3 Pro (6.3" LCD), which was rebranded "Realme X Lite" in China. The first Realme X units will be sold in China starting at 10:00am on May 20. You'll be able to grab one from the Realme.com, JD, Tmall or Suning....
Source: https://www.gsmarena.com/first_realme_x_promo_video_is_out_all_the_best_features_in_a_minute-news-37053.php