1. Change the position of the task switcher and back buttons
Go into Settings > Display > Navigation bar > Button Layout, and select one of the two: Recents - Home - Back, or Back - Home - Recents.
2. Change the size of the home screen grid with smaller or larger icons
Long press on the Home screen panel > Home screen settings, and customize the Home Screen Grid (you get to pick between 4x5, 4x6, and 5x5) and / or Apps Screen Grid (4x6 or 5x6).
3. Show or Hide the 'Apps' button via settings
Long press on the Home screen panel > Home screen settings > Apps button, and select whether you want to hide or show the button.
4. Enable or Disable the Edge panel and customize its position to left or right
Go into Settings > Display > Edge screen > Edge panels, and select On or Off. Once the Edge panel is enabled, you swipe on the little Edge hint on the side and go into settings by pressing the gear icon at the bottom. On the next screen, tap the three buttons > Handle Settings, and select whether you want the edge panel on the left or the right. You can also customize the size of the edge panel and its transparency.
5. Split screen multitasking
To start split screen multitasking, press the Recents key and in the top frame for each app, left of the X button to close it, is a button with two rectangles. Press the rectangles to start that app in split-screen mode. The app will automatically show at the top, while at the bottom half you get to see your other recents. Either select one of them, or tap on 'More Apps' and select the second app you want to have in split-screen view. And voila! To exit split screen view, tap on the line between the two apps and drag it all the way up or down.
6. Remove the app drawer for an iPhone-like experience
Long press on the home screen and tap Home screen settings > Home screen layout. You will see two options: Home screen only or Home screen and apps screen. To remove the app drawer select 'Home screen only'. This will put all of your existing apps on your home screens.
7. Enable edge lighting for incoming calls
Edge lighting was one of the cooler features of edge-toting Galaxies, and while the S8 has a very subtle curve to its edge screen, so it's very hard to see the actual effect, you might still want to have it on. You enable it by going into Settings > Display > Edge Screen > Edge lighting. Here you can either press the toggle to always enable it or disable it, or you can long-press the edge lighting tab and go into more detail. There, you can select things like show edge lighting when the screen is off or on only.
8. How to take a screenshot and how to take a bigger, scrolling screenshot
Screenshots are a great and easy way to share something cool that you see on your phone. You take a screenshot on the Galaxy S8 by simultaneously pressing the power/lock key and the volume down button. But you can also take 'scrolling screenshots' on the S8: take a regular screenshot and press on the scrolling screenshot button at the bottom. With every press you will capture more of the screen: perfect for webpages or long lists.
9. Turn on power saving mode
If you want to extend the battery life of your phone, you can do so by enabling power saving mode. To do that, go into Settings > Device maintenance > Battery, and select Mid or Max. Max is a very radical change that disables most of your apps and leaves you with a black screen with only a few applications, but allows your phone to last for hours on a single digit battery percentage. Most people, however, would prefer using the Mid option that decreases brightness, limits your CPU a bit and turns off things like Always On display.
10. Shutter button slides up and down in camera for zoom
There are quite a few cool tips to make the most out of the camera on the S8. The first thing that you may want to try is to simply swipe the shutter key in the camera up and down. This allows for very smooth zooming, with a much more fluid movement than the regular pinch-to-zoom motion.
11. Enable RAW / DNG image capture in camera
If you really want to bring out the best of highlights and shadows in your pictures, you will want to shoot in Raw format. To do that, open the camera app, tap on the Picture size tab, and at the bottom, enable the 'Save RAW and JPEG files' option.
12. Enable video stabilization
Proper stabilization is essential for good-looking hand-held video. You enable it, by going into the camera app, tap on settings in the top right, and select Video stabilization under the Common tab. You're done!
13. Shop with Bixby
Bixby is not yet fully functional on the Galaxy S8, but one thing you can do is shop for things using your camera and Bixby's smart intelligence. Open the camera app nad point it towards something that you are interested in buying. It could be a book or a banana, or anything really. If Bixby recognizes it, you will see dots flying around the screen and if you don't see anything you can tap on the eye-like icon in the bottom left. If you get a match, you can press the shopping icon and see prices and links to buy that item easily.
14. Use Snapchat like filters and effects in the camera
Simply go in the camera, switch to the selfie camera by pressing the camera icon on the top left, and you will see a little bear icon in the bottom right. Press it and enjoy a ton of cool Snapchat-like filters and effects.
15. Fun iris scanning previews
You can set various secure ways to unlock your phone, including a cool new iris scan. But it tends to look a bit creepy in the defualt setting. To make it a lot more fun, go into Settings > Lock screen and security > Iris Scanner > Preview screen mask, and instead of just your eyes shown as preview, you will see the fun Snapchat-like effects from the selfie cam.
16. Turn on voice controls in camera
Did you know that you can also take a picture with a voice command? If you are taking a selfie, that's super useful. Go into the camera app, tap on the gear icon for settings in the upper right corner and towards the bottom of the list, toggle Voice control on. You can then say 'Cheese' or 'Smile' to snap a picture.
17. One handed mode for the bigger screens
The narrower screens on the S8 and S8+ are not that hard to reach and handle with one hand, but if you want an even smaller display, you can enable one-handed mode. To do that, go into Settings > Advanced Features > One Handed Mode. Once that's enabled, you can tap the Home button 3 times quickly to reduce the screen size.
18. Enable Wi-Fi calling if you don't have solid connection
Go into Settings > Connections > More Connection settings and switch the Wi-Fi calling toggle to on.
19. Here is how to start the Google Assistant
Simply give the home key a long and hard press to start the Google Assistant. With Samsung's Bixby not yet fully functional, this is your best choice for voice commands.
20. Search your entire phone
You can search for any app or file on your Galaxy S8 and that's quite cool. You do this by opening the app drawer first, and right at the top you will see the 'Search phone' box. Type in it to search for an app, a lost email or even type something like 'dog' to get all images with dogs in them! In our case, the app mistakenly tagged a goat as a dog, but it's fun nonetheless.
21. Search in Settings
Did you know that you can search in settings? Go into settings and tap on the magnifying glass icon in the upper right to search for a particular feature you want to set up.
22. Stop adding new app icons to home screen
Don't you get annoyed when every time you download a new app, a new icon also appears on your home screen. Sure, it should appear in the app drawer, but having it also on the home screen ruins your perfect home screen arrangement. Luckily, you can turn this off. Open the Play Store app > tap the hamburger button > go into Settings and uncheck the box that says Add icon to Home screen.
23. Sort your apps in alphabetical order
This one is simple and it's useful. If you want apps in your app drawer to be arranged not in the chaotic order of last downloaded, but instead in much more logical alphabetical order, open the app drawer and tap on the three dots at the upper right. There, select Sort and tap on Alphabetical order. And you're done.
24. Disable/enable (hide) lockscreen notifications
If you do not want random people to see your sensitive incoming notifications when your phone is laying on some table in some place, you can hide or completely disable those notifications. Add a fingerprint or another security measure to enable this option. Once you are done, you will see the Notifications menu pop up. There select the hide content option.
25. Enable silent mode with a single tap
You can silence the ringtones on your new Galaxy by simply unlocking the phone, pressing the volume key once and tapping on the loudspeaker icon in the top left. This automatically enables vibration only for notifications.
26. Bonus one: Schedule Night mode with Blue lightfilter
The Galaxy S8 family comes with the awesome Blue light filter functionality. This is similar to Apple's Night Shift and other solutions that limit the amount of blue light emitted from the screen at night. This isS done to help you fall asleep easier, even if you have used your phone to read long articles in bed. If you don't enable this option, blue light from the screen will usually trick your brain and prevent it from producing the necessary hormones for sleep. To start the Blue light filter every night automatically, simply go into Settings > Display > tap on Blue Light Filter > switch Turn on as scheduled and select the times you want it to start and end. Easy!