Redmond note 3 having no sd card expansion. It has no battery removable option near field communication is not there , for the front no scratch resistant is there if we want to use dual sim then micro SD card should be ejected and in that place 2nd sim should be inserted. but it contains 4000 mah battery so battery back up is great. Due to fingerprint sensor great security is there because pin password takes much time to open. When we drop the phone it does not get damaged that is great because it will happen accidentally