Now MacBook Pro family consists of 13-inch, 15-inch, and 17-inch models which all of them equipped with a lithium-polymer battery. This type of battery can last up to 7 hours and can be charged up to 1,000 times. All models support up to 8GB of RAM, 500GB hdd or a 256GB ssd. Regarding display, the new MacBooks is better than previous models with a 60 percent better color gamut. Follow the link below and ask for them one.