Why is my Gmail not Syncing on iPhone?
Syncing errors of Gmail with iPhone also affect the overall speed and performance of the Mail app. If you are thinking, “why is my Gmail not syncing” then firstly, go to settings and check if the option of Fetch New Data is on. If it is off, your iPhone mail will fail to update. To fix this, turn on the push button of “Fetch New Data.” Then new data will be pushed to your iPhone from the server when possible.