Latest Android 6 user agents:

User Agent Browser Device
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.4758.1348 Mobile Safari/537.36 Chrome Mobile 53 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2277.1428 Mobile Safari/537.36 Chrome Mobile 39 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; A8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Mobile Safari/537.36 Chrome Mobile 106 Unknown
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.3012.1748 Mobile Safari/537.36 Chrome Mobile 50 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1; vivo 1606 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/105.0.5195.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/436.0.0.35.101;] Facebook 436 Y53i
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.9261.1658 Mobile Safari/537.36 Chrome Mobile 42 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.8504.1735 Mobile Safari/537.36 Chrome Mobile 44 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; ALE-L21) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Mobile Safari/537.36 Chrome Mobile 89 P8 Lite (2015)
Mozilla/5.0 (Linux; Android 6.0; LG-D855) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Mobile Safari/537.36 Chrome Mobile 106 G3
Mozilla/5.0 (Linux; Android 6.0; LG-D855) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/17.0 Chrome/96.0.4664.104 Mobile Safari/537.36 Samsung Browser 17 G3
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.8030.1435 Mobile Safari/537.36 Chrome Mobile 40 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.5207.1457 Mobile Safari/537.36 Chrome Mobile 43 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.9605.1035 Mobile Safari/537.36 Chrome Mobile 59 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1; SM-G900K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Mobile Safari/537.36 Chrome Mobile 106 Galaxy S5
Mozilla/5.0 (Linux; Android 6.8 Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Mobile Safari/537.36 Chrome Mobile 145 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.3317.1212 Mobile Safari/537.36 Chrome Mobile 52 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.9514.1016 Mobile Safari/537.36 Chrome Mobile 53 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1; SM-J510GN Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.74 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/436.0.0.35.101;] Facebook 436 Galaxy J5 (2016)
Mozilla/5.0 (Linux; Android 6.0.1; SM-J500H Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.74 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/436.0.0.35.101;] Facebook 436 Galaxy J5 (2015)
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.5261.1800 Mobile Safari/537.36 Chrome Mobile 56 Nexus 5