Latest Android 6 user agents:

User Agent Browser Device
Mozilla/5.0 (Linux; U; Android 6.0; ru-ru; F3311 Build/37.0.A.2.252) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.128 Mobile Safari/537.36 XiaoMi/Mint Browser/3.9.3 Mint Browser 3 Xperia E5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.6417.1559 Mobile Safari/537.36 Chrome Mobile 56 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.4658.1940 Mobile Safari/537.36 Chrome Mobile 57 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.8926.1485 Mobile Safari/537.36 Chrome Mobile 57 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.8317.1651 Mobile Safari/537.36 Chrome Mobile 49 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; P00C) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/87.0.4280.101 Safari/537.36 Brave 87 ZenPad 10
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.7445.1649 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/45.0.5376.1656 Mobile Safari/537.36 Chrome Mobile 45 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.9661.1647 Mobile Safari/537.36 Chrome Mobile 60 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.8838.1932 Mobile Safari/537.36 Chrome Mobile 56 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1) AppleWebKit/534.2 (KHTML, like Gecko) Chrome/24.0.886.0 Safari/534.2 Chrome 24 Unknown
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.7557.1746 Mobile Safari/537.36 Chrome Mobile 46 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.4530.1122 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/47.0.8942.1311 Mobile Safari/537.36 Chrome Mobile 47 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.9467.1245 Mobile Safari/537.36 Chrome Mobile 40 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 7 Build/MOB30X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.109 Safari/537.36 EdgA/42.0.0.2057 Microsoft Edge 42 Nexus 7
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.3759.1008 Mobile Safari/537.36 Chrome Mobile 51 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.4557.1470 Mobile Safari/537.36 Chrome Mobile 59 Nexus 5
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.5393.1309 Mobile Safari/537.36 Chrome Mobile 45 Nexus 5
Mozilla/5.0 (Linux; Android 6.0.1; alltutorial.net) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Mobile Safari/537.36 Chrome Mobile 106 Unknown