Latest Sonim XP5 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 5.1.1; Sonim-XP5700 Build/5A.0.0-01-5.1.1-15.51.00) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36	Chrome Webview 39	Android 5