What do vivo notification volume and ringtone volume mean respectively?

Notification volume refers to the amount of notifications such as SMS and WeChat.

Ringing volume refers to the volume when someone calls.

Vivo brand products include smart phones, tablets and smart watches. By August 2022, it has been stationed in more than 60 countries and regions, with more than 400 million users worldwide, and its research and development covers Shenzhen, Dongguan (headquarters), Beijing, Shanghai, Nanjing, Hangzhou and Xi 'an.