By default, Snapchat
uses a Wake Screen
feature that illuminates your smartphone as soon as a notification hits your phone. Unfortunately, this feature can contribute to battery drain, as it does leave your screen illuminated for a few seconds at a time.
This article will teach you how to turn off Wake Screen
on Snapchat. Once this feature is disabled, any Snapchat notification will be shown upon manually waking your device's screen.
Prevent Snapchat from Waking Your Phone
Launch the Snapchat app, and tap the Settings
menu (represented by a gear icon):
Scroll to the Advanced
section, and tap Notifications Settings
Uncheck the Wake Screen
Your new settings will take effect immediately.