It will be optimized for older and slower phones.
Facebook Lite is an app aimed at lower-end Android phones that offers the user a pared-down version of the social network experience. Now, 9to5Macreports that Facebook is working on a similar Lite version for iOS. We’ve reached out to Facebook for confirmation that the app is in testing.
The slimmed-down app, which is just 5 MB, is optimized for slower or older phones that don’t have the processing power of flagship handsets. It uses less power to run and downloads less data to your device. The app is currently Android-only because that is the more popular mobile OS worldwide, where many of these older and slower phones are located. The US Android version of Facebook Lite is currently still in testing.