Latest Lenovo K5S user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 8.1.0; Lenovo L38031 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 MobileLenovoBrowser/8.5.5	Lenovo Browser 8	Android 8