Realme unveiled the X7 Pro last September, and today it quietly released, or Extreme Edition depending on which version of the machine translation from Chinese we go with . One might expect it to come with improvements over the X7 Pro, and it does, but we are also looking at some downgrades here. For starters, the X7 Pro features a 120Hz FullHD+ flat AMOLED screen, but the Ultra packs a 90Hz display, albeit with curved edges. The number of rear cameras has also reduced from four on the X7 Pro to three on the Ultra, but in practical terms nothing changed as Realme only ditched the 2MP...
Source: https://www.gsmarena.com/realme_x7_pro_ultra_extreme_edition_specs_price_sale_date-news-48487.php