An upcoming entry-level phone from vivo was just teased through by the company on Weibo. The first image of the vivo U3 shows us that the phone will pack the Snapdragon 675 chipset and also gives us a look at the back. There is a triple camera setup and a fingerprint reader on the back. Apart from the logo placement, the U3 looks identical to vivo U3x which is a rebranded version of he vivo U10. A while back a Snapdragon 675 powered vivo phone appeared on TENAA with the V1934A/T model number. That listing showed the phone will come with a 6.53-inch FHD+ screen with a 16MP selfie cam...
Source: https://www.gsmarena.com/upcoming_vivo_u3_teased_will_debut_on_october_21-news-39694.php