Featuresr appearance zinc alloy watch shell stainless steel switch and rubber wristband delicate texture designr screen 139inch amoled hd full round screen true color screen 400400pixelr cpu mtk6580 quad core 13ghz cpu processorr os android 51 operation systemr capacity 512 ram 8gb rom big storager camera equipped with a 20mp 720p special camera support video recordingr battery built in a 450mah large poly li batteryr network support 3g wcdma 2g gsm single nano sim cardr o