Latest iMars VIVI 8 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 7.0; VIVI_8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.120 Mobile Safari/537.36	Chrome Mobile 91	Android 7
Mozilla/5.0 (Linux; Android 7.0; VIVI_8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.83 Mobile Safari/537.36	Chrome Mobile 83	Android 7