Samsung U600 Ultra Edition II - Unlocked Mobile Cell Phone Unlocked Quadband - GSM 850 / GSM 900 / GSM 1800 / GSM 1900 Contact Management phonebook holds up to 1000 phone entries Display - 2.22 diagonal TFT up to 256,000 colors / QVGA 320x240 pixels, 34 x 44 mm Remembers up to 30 dialed, 30 received, 30 missed calls