Android 4.4.4 is judged to be bad Android

5.0 (Linux; U; Android 4.4.4; zh-cn; M353 Build/KTU84P)
AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30

5.0 (Linux; Android 4.4.4; M353 Build/KTU84P)
AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0
Mobile Safari/537.36 

See: http://jimbergman.net/webkit-version-in-android-version/