Push Service

Push Service is a system app for HUAWEI devices. This app lets app and service developers send content updates and messages to users in real time from the cloud to the device. As a result, the device doesn't have to constantly refresh to see if there's new content, such as an email or a message. As soon as this message is received, the server sends a signal to the device to indicate that there's new content to sync.

Push Service is part of HUAWEI's Push Kit, which allows app developers to integrate synchronization for games, messaging apps, app stores, and more. In the case of messaging apps, it also allows the server to know when the receiver of the message has or has not read the message. Synchronization is performed in the background and consumes hardly any battery or device resources.

So if you want to receive notifications with low battery consumption, you should download the Push Service APK to make sure you have it installed. If you removed it thinking it was bloatware, then you're going to stop receiving notifications on your HUAWEI device, be it a smartphone or a tablet.