Detailed Product Description O2 XDA Zest GeneralGSM 900 / 1800 / 1900 HSDPA 2100 2008, OctoberAvailable. Released 2008, NovemberSize102 x 60.5 x 16.5 mm 102.5 gDisplayTFT resistive touchscreen, 65K colors480 x 640 pixels, 2.8 inches - Handwriting recognitionSoundVibration; Downloadable polyphonic, MP3, WAV, WMA ringtonesYesMemoryPractically unlimited entries and fields, PhotocallPractically ...