Best 4 inch Cell Phones - LTE 700 / 850 / 1800 / 1900 / 2100 Network Type, ~Android.*|.*iPhone OS.*|.*Windows.*|BlackBerry.* Operating System, Hearing Aid Support Other Features, 8 to 13 Hours Talk Time, Calculator Organizer Features, SMS Messaging Formats, 0 to 0.65 in. Depth