The new circles and dots from the Facebook Messenger application for iOS and Android

This week Facebook introduced new elements in the application Facebook Messenger for iOS si Android.
These new elements are actually four circles si dots which shows the state in which it is a Message sent.

1. Gray circle that rotatesShows that the message is being sent.
2. Blue CircleMeans that the message has been sent.
3. Blue circle with a dot in the centerShows that the message has been delivered to the recipient, but not necessarily read it. (message sent)
4. Dot with the recipient's profile picture, shows us that the message sent by us on Facebook Messenger has been read. Practically this icon replaced "seen".

With the addition of these new elements in Facebook MessengerWas eleminate able to see the time at which a message was sent (Seen).

The new changes are available on all Apple devices (iPhone, iPad and iPod touch) and smartphones with the Android operating system (Samsung, LG, HTC, Motorola, Lenovo).

New Facebook Messenger icons to let you know when your messages have been sent, delivered and read.