Detailed Product Description O2 XDA Argon GeneralGSM 900 / 1800 / 1900 2007, MayAvailableSize130 x 70 x 18.8 mm 200 gDisplayTFT resistive touchscreen, 65K colors240 x 320 pixels, 3.5 inches - Handwriting recognition- 5-way navigationSoundVibration; Downloadable polyphonic, MP3 ringtonesYesMemoryPractically unlimited entries and fields, PhotocallPractically unlimited128 MB RAM, 256 MB ROMSD, ...