Google Play Services is important in that it updates your Google apps and other apps from the Google Play Store. They can represent key system functions – Google Account login for Google services and contacts syncing, as well as providing the user with access to the latest privacy options and support for better location-based services. Without it to do so, some features in your apps may not work as intended.
KEY FEATURES
• Core functionality: Google Play Service also has the function of the authentication of the Google services which guarantees you that you’ll be able to have access to all your associated accounts and services.
• Synchronization: It also has features including contact management and data sync that will allow you to stay updated no matter where you are.
• Privacy settings: Get full control over your data and always know where to find the latest changes to user privacy settings.
• Location services: Get reliable, low-impact location capabilities for applications that require location information, saving you battery when you're using navigation or other location-based functionality.
Google Play Services also gives your app better offline search, offline maps, and better gaming enhancements. This means it enables you to get results faster, even if you are not connected to the Internet.