When comparing Lightning vs Samsung Internet, the Slant community recommends Samsung Internet for most people. In the question“What are the best Android web browsers?” Samsung Internet is ranked 13th while Lightning is ranked 19th. The most important reason people chose Samsung Internet is:
Samsung recently collaborated with Disconnect to include do not tracking features to prevent any websites to track with each other. https://medium.com/samsung-internet-dev/introducing-disconnect-for-samsung-internet-f23b29a05463
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Pro Slide-out tab switcher
Tab switcher can be quickly accessed by swiping from the left.
Pro Built-in reading mode
Reading mode allows removing everything on a page but the content. It removes ads, styling and anything else that could get in the way of a comfortable reading experience.
Pro Free and open source software
This means you can help developing new features if you would like to contribute.
Moreover you can inspect the code if you are concerned about privacy.
Pro Incognito mode
Pro Do Not Track features
Samsung recently collaborated with Disconnect to include do not tracking features to prevent any websites to track with each other.
Pro Ad-blocking features
Samsung Internet supports Ad-Blocking features such as AdBlock Plus, AdBlock, AdGuard, Disconnect etc., but must be installed separately through Google Play, which these apps can also used in other browser which supports Ad-Blocking.
Pro Can be installed on any Android devices
Samsung allows this application to be installed to non-Samsung Android devices starting with Android 5.0 Lollipop
Pro Sync with Google Chrome desktop app
Samsung Internet can sync the bookmarks and history to Google Chrome desktop app, where the Samsung Internet extension for Google Chrome is available.
Pro Picture-in-picture (PIP) video
Samsung Internet supports picture-in-picture (PIP) video, which means the video that played in this web browser can be pop-out and visible in the Android screen even if the browser is minimized.
Samsung Internet supports web notification from various websites such as Facebook, Telegram etc. which it will also works even if the browser is closed.
Con No bookmark folders
Bookmarks can't be organized into folders.
Con Not supported by Password Managers
BitWarden and LastPass do not work with the browser
Con No data saving mode
Unlike Google Chrome or Opera, Samsung Internet does not comes with data saving mode which is a disadvantages for users who relies on limited data usage.