iPad Comparision Matrix

iPad 2 iPad Air iPad Pro 12.9
Model iPad 2 iPad Air iPad Pro(12.9 Inch)
Model Number A885 (WiFi) A1474 (WiFi) A1584 (Wi-Fi)
SoC Apple A5 Apple A7 Apple A9X
Motion coprocessor Apple M7 Apple M9
CPU 1 GHz dual-core ARM Cortex-A9 1.5 GHz tri-core AppleTyphoon 2.26 GHz dual-core Apple Twister
GPU Dual-core PowerVR SGX543MP2 Quad-core PowerVRG6430 12-core PowerVR Series 7XT
Memory 512 MB DDR2 RAM (1066 Mbit/s data rate) built into Apple A5 package 2 GB LPDDR3 RAM 4 GB LPDDR4 RAM
Display 9.7 inches (250 mm) multi-touch display with LED backlighting and a fingerprint and scratch-resistant coating 9.7 inches (250 mm) multi-touch display with LED backlighting and a fingerprint and scratch-resistant coating 12.9 inches (330 mm) [diagonal] multi-touch display with LED backlighting and an oleophobic, fingerprint and scratch-resistant coating, Antireflective coating 2732-by-2048 pixel resolution 264 ppi (Retina Display)
1024×768 pixels at 132 ppi 2048×1536 pixels at 264 ppi (Retina Display)
Camera Back 720 p HD still and video camera
0.7 MP, 30fps and 5× digital zoom
1080p HD still and video camera
5 MP, 30fps and 5× digital zoom
8 MP, ƒ/2.4 aperture, HDR for photos, Autofocus, five-element lens, Hybrid IR filter,
Backside illumination, Face Detection, Exposure control, Panorama (up to 43 MP), Burst mode, Tap to focus, Photo geotagging, Timer mode, Video Recording, 1080p video recording (30 fps), Slo-mo video support for 720p at 120 fps, Time-lapse video, Video image stabilization, 3× digital zoom, Video geotagging
Front VGA-quality still and videocamera, 0.3 MP 1.2 MP still, 720p video 1.2 MP, ƒ/2.2 aperture, 720p HD video recording, Auto HDR for photos and videos,Backside illumination, Exposure control, Burst mode, Timer mode and Face Detection
Wireless Wi-Fi (802.11a/b/g/n), Bluetooth 2.1+EDR Wi-Fi (802.11a/b/g/n), Bluetooth 4.0 Wi-Fi (802.11a/b/g/n/ac); dual channel (2.4 GHz and 5 GHz); HT80 with MIMO
Bluetooth 4.2 technology
Geolocation Wi-Fi, Apple location databases Wi-Fi, Apple location databases Wi-Fi, Apple location databases, iBeacon microlocation
Environmental sensors Accelerometer, ambient light sensor, magnetometer, gyroscope Accelerometer, ambient light sensor, magnetometer, gyroscope Accelerometer, gyroscope, ambient light sensor,magnetometer, barometer
Battery 3.8 V 25 W·h (6,944 mA·h) 3.73 V 32.9 W·h (8,820 mA·h) 3.77 V 38.8 W·h (10,307mA·h) rechargeable lithium‐polymer battery
Dimensions 9.5 in × 7.31 in × 0.346 in (241.3 mm × 185.7 mm × 8.8 mm) 9.4 in × 6.6 in × 0.24 in (238.8 mm × 167.6 mm × 6.1 mm) 305.7 mm (12.04 in) (h) x 220.6 mm (8.69 in) (w) x 6.9 mm (0.27 in) (d)
Weight Wi-Fi model: 1.325 lb (601 g) Wi-Fi model: 0.96 lb (437 g) Wi-Fi model: 1.57 lb (710 g)
Mechanical keys Home, sleep, volume rocker, variable function switch (originally screen rotation lock, mute) Home, sleep, volume rocker, variable function switch (originally screen rotation lock, mute) Home, sleep, volume rocker
Connector 30-pin dock connector Lightning Connector Lightning Connector, Apple Smart Connector
Greenhouse gas emissions 180 kg CO2e 190 kg CO2e 240 kg CO2e
iPad 2 iPad Air iPad Pro 12.9

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