Android devices sold in mainland China aren't the same as Android devices sold in the US and elsewhere. Chinese devices often run a forked version of Android derived from Android Open Source Project (AOSP) code but without the Google apps and services that are usually included in other countries. That's because the Google Play store and related services aren't officially available in China—the company left China back in 2010 following the "Operation Aurora" cyber-attacks that have been attributed to the Chinese government. Google vowed to stop censoring Chinese search results and later began redirecting Chinese searches through Hong Kong, and its services in China have either been spotty or completely unavailable ever since.
Google is now making plans to get a version of Google Play back into China and that it's willing to work within Chinese censorship law to do it.