Key Features. Unlocked and; SIM Free 4G Ready 2 Megapixel rear camera 2.8” QVGA Display Unisoc UMS9117 Processor + 64MB of RAM128MB Storage + 128GB Micro SD Slot. Easy to use handset Doro 6820 is a 4G feature phone for those who want a stylish straightforward & easy to use device for making calls & sending texts. This device has a 2.8 display perfect for reading & sending texts or taking & sharing photos. Use the direct camera & message keys for quick access to key functions & confidently dial numbers on the large well-spaced buttons. It features an assistance button for times when you need help quickly & easily a 2MP camera with flash & a charging cradle for topping up the battery with ease. Large clear buttons Comes with a large well-spaced & high contrast buttons for easy dialling & typing text messages. Use the two dedicated keys for camera & text messages to make taking photos & sending text messages easy & stressfree! One press SOSThe one press Assistance button allows users to get help quickly & easily when they need it most. When pressed the button will send an SMS message to the 5 programmed contacts. It will then begin to call them in sequence & when someone answers the call it automatically connects the Doro user to them on a hands free call. Crystal clear sound The Doro 6820 has loud & clear sound for calls you can hear wherever you are. Comes with hearing aid compatibility & three sound settings to suit users hearing requirements..