Facebook Messenger Lite is a basic-features-only version of Facebook Messenger, designed to work on pretty much any Android version and on slow cellular networks. It allows sending and receiving messages, images, voice notes, stickers, and audio calls, but not sending videos and making video calls.
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Pro Can run on slow phones
Being light (installed it takes up 6-10 MB of memory) and fast, Messenger Lite can run on phones with Android 2.3 and up.
Pro Works on all networks
This app was made with 2G networks and areas with slow or unstable internet connections in mind. If you lose the connection, your messages will be delivered when you have signal again.
Con Doesn't have video sending/video call features
With Messenger Lite you can't send videos or make video calls.