the full name of GMS is GoogleMobile Service, which means Google mobile service. GMS is the driving force for Google to develop and promote Android, and it is also the soul of Android system. Basic Introduction Chinese Name: GMS mbth: GoogleMobile Service Type: Mobile Service Developer: Google Support System: Basic Introduction of Android Operating System, Level, General introduction GMS currently provides services such as Search, Search by Voice, Gmail, Contact Sync, Calendar Sync, Talk, Maps, Street View, YouTube, and Android market (change from ICS to Play store). When users use Google services, Google can embed advertisements into various Google services. For example, when users use Google Maps, they can find advertisements searching for place names. When using Google mobile search, of course, there are advertisements. Google actually takes users' attention in exchange for advertisers' money. Moreover, the Android smartphone operating system is actually Google's initiative to put its services on the mobile phone, further consolidating its market position. According to GMS, Google gives different degrees of authorization to Android phones, and divides the mobile phone manufacturers equipped with Android system into three levels: 1. Use the Android operating system for free, but do not embed GMS; 2. Some GMS services are embedded, but the mobile phone cannot be branded with Google; 3. All GMS services are embedded, and Google trademarks can also be used. If Google GMS service is built into Android phone, it is equivalent to a product officially certified by Google. At present, only a few mobile phone manufacturers have passed GMS certification in the domestic market. For example: HTC (Hongda International Electronics Co., Ltd.)-Samsung Electronics in Taiwan Province, China-Motorola Mobility in Korea-Sony Ericsson in the United States-LG Electronics in the United Kingdom-Lumigon in South Korea (Denmark Lu Ligeng Mobile Phone Company)-ARCHOS (Denmark)-TOSHIBA (France)-Japan and in mainland China, all licensed mobile phones can't pass GMS certification at present. GMS authentication is not as easy as imagined. Google should consider whether to authenticate according to the strength of the manufacturer and regional factors. For manufacturers, GMS is an effective means to open up brand differentiation, that is, identification, in addition to obtaining more Google service licensing rights. It can be seen that the comprehensive ability of a manufacturer can be simply judged from whether it has passed GMS certification.