The Curve my father uses one and he loves his. It is unbelievable on how fast it sends emails, download attachments, great web browser, and the built WIFI is a plus.They both have great cameras (Curve has 2.0 meg, while the Dash has a 1.3 meg) both have music players and support bluetooth. The Dash does not have WIFI and the Curve does not record Video. Other than that they are both great phones, but I am going to have to go with the Curve because it uses the new RIM hardware, and the phone is quality. Great battery life, durable, fast and efficent it does everything you need it to do and more. Email me if you got any ?s