Let's compare each phone and tablet in the specs table.
| iPad Pro (2nd generation) 10.5-inch | iPad Pro (2nd generation) 12.9-inch | iPad Air (3rd generation) 2019 | iPad (9th generation) 2021 | iPad (8th generation) 2020 | iPad (7th generation) | |
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| Manufacturer | Apple | Apple | Apple | Apple | Apple | Apple |
| Release Date | ||||||
| Screen Size | 10.5 inch | 12.9 inch | 10.5 inch | 10.2 inch | 10.2 inch | 10.2 inch |
| Resolution | 1,668 x 2,224 | 2,048 x 2,732 | 1,668 x 2,224 | 1,620 x 2,160 | 1,620 x 2,160 | 1,620 x 2,160 |
| Display Details | Retina LCD | Retina LCD | Retina LCD | Retina LCD | Retina LCD | Retina LCD |
| Max Refresh Rate | 120 Hz | 120 Hz | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Max Brightness | 600 nits | 600 nits | 500 nits | 500 nits | 500 nits | 500 nits |
| Body Size | 174.1mm x 250.6mm x 6.1mm | 220.6mm x 305.7mm x 6.9mm | 174.1mm x 250.6mm x 6.1mm | 174.1mm x 250.6mm x 7.5mm | 174.1mm x 250.6mm x 7.5mm | 174.1mm x 250.6mm x 7.5mm |
| Weight | 469 g | 677 g | 456 g | 487 g | 490 g | 483 g |
| Processor | Apple A10X | Apple A10X | Apple A12 Bionic | Apple A13 Bionic | Apple A12 Bionic | Apple A10 |
| OS | iOS 11 | iOS 11 | iOS 12 | iPadOS 15 | iPadOS 14 | iPadOS 12 |
| Main camera 1 | 12-megapixel(f/1.8) | 12-megapixel(f/1.8) | 8-megapixel(f/2.4) | 8-megapixel(f/2.4) | 8-megapixel(f/2.4) | 8-megapixel(f/2.4) |
| Main camera 1 details | ||||||
| Main camera 2 | ||||||
| Main camera 2 details | ||||||
| Main camera 3 | ||||||
| Main camera 3 details | ||||||
| Main camera 4 | ||||||
| Main camera 4 details | ||||||
| Main camera 5 | ||||||
| Main camera 5 details | ||||||
| Sub camera 1 | 7-megapixel(f/2.2) | 7-megapixel(f/2.2) | 7-megapixel(f/2.2) | 1-megapixel(f/2.4) | 1-megapixel(f/2.4) | 1-megapixel(f/2.2) |
| Sub camera 1 details | wide angle 122° | |||||
| Sub camera 2 | ||||||
| Sub camera 2 details | ||||||
| Battery | 8,134 mAh | 10,307 mAh | ||||
| Video playback time | 10 hours | 10 hours | 10 hours | |||
| RAM(GB) | 4 G | 4 G | 3 G | |||
| ROM(GB) | 64 G | 64 G | 64 G | 64 G | 32 G | 32 G |
| Antutu | 275,000 ver7 | 276,000 ver7 | 350,000 ver7(estimated) | 612,000 ver9 | 410,000 ver8(estimated) | 204,000 ver7(estimated) |
| Water resistance | - | - | - | - | - | - |
| Dust resistance | - | - | - | - | - | - |
| SIM | nanoSIM | nanoSIM | nanoSIM/eSIM | nanoSIM/eSIM | nanoSIM/eSIM | nanoSIM/eSIM |
| NFC | No NFC | No NFC | No NFC | No NFC | No NFC | No NFC |