The difference between the second generation and the fourth generation of ipad2

There is little difference between ipad4 and ipad Air2 in function, but there is a big difference in configuration.

1: Chip.

IPad4 uses Apple A6X dual-core processor.

IPad Air 2 is equipped with A8X processor, which is a brand-new 64-bit processing chip, and its speed is increased by 40%, which is 180 times higher than the original iPad. The iPad Air 2 is also equipped with an M8 coprocessor and an air pressure sensor to monitor the altitude.

2: camera.

IPad4 is equipped with a front camera with 65438+200,000 pixels and a rear camera with 5 million pixels, which supports 720P( 1280x720) HD video and1080p (1920x1080) full HD playback and recording.

The IPad Air 2 uses the best viewfinder. ISight camera has 8 million pixels, and the aperture is f2.4, 1. 12μ pixels. It supports shooting 1080p video, and can shoot 43 million pixel panoramic images. At the same time, it supports slow motion, time-lapse photography and high-speed continuous shooting, and improves the performance of facial recognition.

3: New features.

Apple's iPad Air 2 adds a gold version and TouchID fingerprint recognition function, with a thickness of 6. 1mm, which is nearly 18% thinner than iPad Air, making it the thinnest tablet computer in the world.

On the screen side, iPad Air 2 uses a laminated screen, with LCD, glass and touch sensor all together. There is an antireflection coating on the glass surface, which reduces the reflection by 56%.

In terms of network performance, iPad Air 2 supports 802. 1 1AC MIMO, and the connection speed is increased by 2.8 times. With the support of 20 LTE operators, the uplink speed of LTE can reach 150Mbps.

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