2013年10月23日星期三

ipad air vs.ipad mini vs.ipad 4


Apple finally anounced the ipad air and the new ipad mini. The iPad Air is much slimmer and lighter, but it doesn’t feel cheap. While the size differences aren’t immediately apparent, the lighter weight is noticeable and the A7 processor is a major improvement.

Along with the new A7 processor and a handful of under-the-hood improvements, this is just about the upgrade we expected, but more than ever the iPad Air feels like you’re just holding a big screen full of the internet. That’s probably a good thing.

Apple’s newest iPad mini is similar to the first iPad mini, though it is slightly thicker and heavier. Engadget didn’t notice any major changes to the feel, but did note that the processor seems faster than the original.

Although the Mini’s screen will be more crisp, the iPad Air has the advantage of being physically bigger. Well, that’s an advantage to some people. It’s easier to read text, and browsing the web is better on a larger screen. The redesigned Air isn’t even much heavier than the Mini — it weighs just 1 pound (469 grams) and the mini is 0.73 pounds (331 grams). They are also exactly the same thickness at 7.5mm. The 9.7-inch iPad Air isn’t as ungainly as its predecessor, but the Mini will still be a bit more manageable.

                                                                                                            
                                    
iPad Air                                     iPad 4





Wi-Fi capacity and price16GB ($499), 32GB ($599), 64GB ($699), 128GB ($799)16GB ($499), 32GB ($599), 64GB ($699), 128GB ($799)
Wi-Fi and cellular16GB ($629), 32GB ($729), 64GB ($829), 128GB ($929)16GB ($629), 32GB ($729), 64GB ($829), 128GB ($929)
Colors and materialSilver, space gray; aluminumBlack, white; aluminum
Dimensions9.4 x 6.6 x 0.29 inches9.5 x 7.3 x 0.37 inches
Weight1 pound (Wi-Fi);
1.05 pounds (cellular)
1.44 pounds (Wi-Fi);
1.46 pounds (cellular)
Display9.7 inch IPS;
2,048x1,536 pixels (264ppi)
9.7 inch IPS;
2,048x1,536 pixels (264ppi)
ProcessorA7 chip (64-bit architecture);
M7 motion coprocessor
Dual-core A6X chip
GPUUnconfirmedQuad-core PowerVR SGX554MP4
Rear camera5-megapixel camera;
1080p HD video
5-megapixel camera;
1080p HD video
Front-facing camera1.2-megapixel;
720p HD
1.2-megapixel;
720p HD
RAMUnconfirmed1GB
Battery lifeUp to 10 hours Wi-Fi, 9 hours cellularUp to 10 hours Wi-Fi, 9 hours cellular
SIMMicro-SIMMicro-SIM
ConnectorLightningLightning


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