All data is safely stored in the cloud at Google Contacts , acting as a master list that pushes updates to any device signed into your account. Setting Up Sync on Android
If you add a new person on your Android phone, they appear in your Gmail on your laptop. google contact sync
Google Contact Sync uses a "two-way" synchronization method. This means: All data is safely stored in the cloud
Android devices are designed to sync with Google natively. However, you must ensure the feature is active for your specific account. Open your device's app. Tap Google (or Accounts > Google ). Select All services > Google Contact Sync . This means: Android devices are designed to sync
You don't need an Android to use Google Contact Sync; iOS handles it natively through the Mail app settings. Back up & sync device & SIM contacts - Google Help
Enable "Also sync device contacts" to automatically back up numbers saved only to your phone's internal storage or SIM card. Setting Up Sync on iPhone & iPad
Whether you're switching to a new phone or just want a reliable cloud backup, here is everything you need to know about mastering Google Contact Sync.