Latest Vivo Y21d user agents:

User Agent	Browser	Platform
Dalvik/2.1.0 (Linux; U; Android 15; V2520 Build/AP3A.240905.015.A2_T1NNCS_V000L1)	Android Browser	Android 15
Mozilla/5.0 (Linux; Android 16; V2520 Build/BP2A.250605.031.A3_NNCS_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/149.0.7827.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/566.0.0.48.73;IABMV/1;]	Facebook 566	Android 16
Mozilla/5.0 (Linux; Android 16; V2520 Build/BP2A.250605.031.A3_NNCS_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/149.0.7827.192 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/567.1.0.52.74;IABMV/1;]	Facebook 567	Android 16
Mozilla/5.0 (Linux; Android 16; V2520 Build/BP2A.250605.031.A3_NN_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/149.0.7827.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/567.1.0.52.74;IABMV/1;]	Facebook 567	Android 16
Mozilla/5.0 (Linux; Android 16; V2520 Build/BP2A.250605.031.A3_NN_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/149.0.7827.192 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/567.1.0.52.74;IABMV/1;]	Facebook 567	Android 16
Dalvik/2.1.0 (Linux; U; Android 16; V2520 Build/BP2A.250605.031.A3_T1NNCS_V000L1)	Android Browser	Android 16
[FBAN/FB4A;FBAV/567.1.0.52.74;FBBV/1003893683;FBDM/{density=1.875,width=720,height=1608};FBLC/en_Qaau_US;FBRV/1006262913;FBCR/;FBMF/vivo;FBBD/vivo;FBPN/com.facebook.katana;FBDV/V2520;FBSV/16;FBOP/1;FBCA/arm64-v8a:;]	Facebook 567	Android 16
Mozilla/5.0 (Linux; Android 16; V2520 Build/BP2A.250605.031.A3_NN_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/149.0.7827.91 Mobile Safari/537.36	Chrome Webview 149	Android 16
Mozilla/5.0 (Linux; Android 16; V2520) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/123.0.6312.118 Mobile Safari/537.36 VivoBrowser/14.7.4.2	vivo Browser 14	Android 16
Mozilla/5.0 (Linux; Android 15; V2520) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.200 Mobile Safari/537.36 VivoBrowser/16.0.4.4	vivo Browser 16	Android 15
Mozilla/5.0 (Linux; Android 15; V2520 Build/AP3A.240905.015.A2_T1_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.211 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/563.1.0.50.73;IABMV/1;]	Facebook 563	Android 15
Mozilla/5.0 (Linux; Android 16; V2520A Build/BP2A.250605.031.A3_V000L1; xx-xx) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.120 Mobile Safari/537.36/vivo AppShellVer:2.4.76 UUID/53daa822-10a2-3c91-a47d-83ac1a0ea317	Chrome Webview 148	Android 16
Mozilla/5.0 (Linux; Android 15; V2520 Build/AP3A.240905.015.A2_T1NN_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.178 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/563.0.0.47.86;]	Facebook 563	Android 15
Mozilla/5.0 (Linux; Android 15; V2520) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.200 Mobile Safari/537.36 VivoBrowser/16.0.0.2	vivo Browser 16	Android 15
[FBAN/FB4A;FBAV/561.0.0.42.67;FBBV/968461645;FBDM/{density=1.875,width=720,height=1608};FBLC/en_US;FBRV/976922887;FBCR/;FBMF/vivo;FBBD/vivo;FBPN/com.facebook.katana;FBDV/V2520;FBSV/15;FBOP/1;FBCA/arm64-v8a:;]	Facebook 561	Android 15
Mozilla/5.0 (Linux; Android 15; V2520) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.200 Mobile Safari/537.36 VivoBrowser/15.8.2.2	vivo Browser 15	Android 15
Mozilla/5.0 (Linux; Android 15; V2520 Build/AP3A.240905.015.A2_T1_V000L1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.163 Mobile Safari/537.36	Chrome Webview 148	Android 15
Mozilla/5.0 (Linux; Android 15; V2520) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.200 Mobile Safari/537.36 VivoBrowser/15.8.2.0	vivo Browser 15	Android 15
Mozilla/5.0 (Linux; Android 15; V2520 Build/AP3A.240905.015.A2_T1NN_V000L1) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.163 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/561.0.0.42.67;IABMV/1;] FBNV/500	Facebook 561	Android 15
Mozilla/5.0 (Linux; Android 15; V2520 Build/AP3A.240905.015.A2_T1NN_V000L1) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.163 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/561.0.0.42.67;IABMV/1;]	Facebook 561	Android 15