Accuracy of screen time
It is saying my total screentime today is over 8 hrs but when you break down usage it’s less than 3 hours
iPhone X, iOS 13
I am not sure what you are adding and how you are adding.
Look at the pic below a cut-out view of your screen shot from your post.
Total Screen Time is a+b+c
In order to understand this better read this example below.
There are 9 Categories in Screen Time
- Social Networking: FaceBook, Hangout, Instagram
- Games : Scrabble, PUBG
- Entertainment: Netflix, Amazon Music
- Creativity: Photos, Google Photos
- Productivity: HDFC Bank
- Education: SkyView, Learn Python
- Reading & Reference: Kindle, NDTV
- Health & Fitness: BeatO, Health, Activity
- Others : Big Basket,
The graph displays top 3 (Time used by user) category legends in X axis. Anything other than these legend categories is Grey bar in the graph
For example:
If the user has used Games, Entertainment & Others category apps for the maximum time during a time span then the graph will show these three categories in the X axis as legends and remaining categories will be shown in Grey Colour.
The GIF below will illustrate the graph from 3 iOS devices
iPhone 6 iOS 12.4.5
iPhone SE iOS 13.3.1
iPad Pro 9.7" Wifi+Cellular iOS 13.3.1