Vivo recently teased the launch of the upcoming X21 smartphone at an event in China on March 19. While the company teased the presence of an under-display fingerprint sensor on the phone, other details were not specified. But, as is the case with a lot of other popular smartphone brands, a prototype ...
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Vivo X21 With Snapdragon 660 SoC, Android 8.1 Oreo Spotted on Geekbench
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