In addition to the many security fixes, the latest version of Android 8.1 includes many features that developers can use to enhance the experience of your smartphone.
Android 8.1 doesn't seem to be that great for most end users. The major improvements for end users brought to Android by 2017 came with Android 8.0. 
But for developers or 8.1 version it was very impressive:
Visual core or Android 8.1 Visual Core
The Visual Core is the first processor designed specifically by Google. It is a special chip for exwork image. It's currently only available on the new Pixel 2 and Pixel 2 XL, but we might see it on other smartphones as well.
Android 8.1 has activated the Visual Core chip and the results are impressive. The Operator handles High-Dynamic Range (HDR) pictures much faster. It can take a series of photos in microseconds, and HDR cameras do a much better job than older digital cameras.
With Google's HDR + technology, your smartphone camera and the Visual Core chip, the photos are processed five times faster than the previous generation of processors with superior quality. You may not notice the speed, but you will surely notice more detail in your photos, especially in low-light photos.
You used HDR + photos once using Google's photo app. Now even third-party apps will be able to use the Android Camera (API) to take advantage of superior processing for better photos.
Nervous network API
Οποιαδήποτε συσκευή μπορεί να αναβαθμίσει σε Android 8.1, (προς το παρόν είναι μόνο τα Pixel 2 και 2 XL, τα Pixel 1 και 1 XL, το tablet Pixel C και τα Nexus 6P και 5X), μπορούν να χρησιμοποιήσουν το APN Neural Networks (NNAPI) . Σαν τελικός χρήστης δεν θα παρατηρήσετε τίποτα από αυτή τη βελτίωση, αλλά οι προγραμματιστές Android θα την παρατηρήσουν σίγουρα. Το NNAPI έχει σχεδιαστεί για να επιτρέπει την μηχανική μάθηση (ML) σε κινητές Appliances. Αυτό το API παρέχει base layer, higher-level, και ML framework που μπορεί να χρησιμοποιηθεί από το TensorFlow Lite by Google.
What does this mean to you as a user? you can expect to see some very interesting smart applications coming soon. For example, next year, you can expect speech recognition and language translation applications that will approach Star Trek levels.
Bluetooth battery level measurements
Tired of not knowing if your headphones or a Bluetooth device is draining? I know I do. With Android 8.1, you'll find a Bluetooth device battery screen in the Bluetooth settings. Of course, it would be better if it was on the top line status.
Better screen management
On some smartphones, specifically the Pixel 2 XL, the screen had problems who finally burned her. Screen burn can happen when the same screen elements (such as navigation icons or the clock) are always on. After a while, these items "burn" into the screen, so if you try to close them, they remain open.
Android 8.1 came up with the end of the burn-up.
New look
There are no major changes to the look, but there are some that are very useful, such as the Pixel Starter or the Pixel Launcher. The feature makes it easier than ever to access Google search features and installed applications. Android's fast settings are now more transparent so you can see every change of the main screen.
The all-in-all Android 8.1 seems to be a huge step forward and we are looking forward to seeing it in more smartphones.
We should also mention Google's Project Treble that has been redesigned to make it easier for device manufacturers to instantly update their devices to new versions of Android.
Let's see…
