Choose by carrier first, and both have updated pearls (8110-8120) now, but as been mentioned. Choose carrier first then device. A blackberry is awesome, but if it doesn't work then what good is it? I used to have a 8100 on T-mobile for work, then was switched to a iPhone on AT&T and even though AT&T has better coverage, it dropped more calls then when I was on T-mobile...Go figure!