1) The Deadbolt 2S MG comes with a new front panel design which offers better user experience.

2.) The Deadbolt 2S MG also allows the generation of recurring PINs.

3.) In addition, you will be are able to generate your own PIN codes via Bluetooth; while in the 2S version, you can only use PIN code created by the App.

4.) You are also now able to manage your PINS in 2SMG, giving you the ability to delete PINs via Bluetooth.

You may refer to this link for more detailed information.
https://www.igloohome.co/blog/deadbolt-2s-mg