Let's compare each phone and tablet in the specs table.
| SHARP AQUOS R compact | Zenfone 4 ZE554KL | SHARP AQUOS R2 compact | BlackBerry KEY2 | iPhone 13 mini | OPPO R15 Pro | |
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| Manufacturer | SHARP | ASUS | SHARP | BlackBerry | Apple | OPPO |
| Release Date | ||||||
| Screen Size | 4.9 inch | 5.5 inch | 5.2 inch | 4.5 inch | 5.42 inch | 6.28 inch |
| Resolution | 1,080 x 2,032 | 1,080 x 1,920 | 1,080 x 2,280 | 1,080 x 1,620 | 1,080 x 2,340 | 1,080 x 2,280 |
| Display Details | Super Retina XDR OLED | |||||
| Max Refresh Rate | 60 Hz | |||||
| Max Brightness | 1200 nits | |||||
| Body Size | 66mm x 132mm x 9.6mm | 75.2mm x 155.4mm x 7.5mm | 64mm x 131mm x 9.3mm | 71.8mm x 151.4mm x 8.5mm | 64.2mm x 131.5mm x 7.65mm | 75.2mm x 156.5mm x 8mm |
| Weight | 140 g | 165 g | 135 g | 160 g | 140 g | 180 g |
| Processor | Qualcomm Snapdragon 660 2.2GHz (quad-core) + 1.8GHz (quad-core) octa-core | Qualcomm Snapdragon 660 octa-core | Qualcomm Snapdragon 845 2.6GHz (quad-core) + 1.7GHz (quad-core) octa-core | Qualcomm Snapdragon 660 octa-core | Apple A15 Bionic | Qualcomm Snapdragon 660 |
| OS | Android 8.0 | Android 7.1.1 | Android 9 | Android 8.1 | iOS 15 | Android 8.1 |
| Main camera 1 | 16-megapixel | 12-megapixel | 23-megapixel(f/1.9) | 12-megapixel(f/2) | 12-megapixel(f/1.6) | 20-megapixel(f/1.75) |
| Main camera 1 details | ||||||
| Main camera 2 | 12-megapixel(f/2) | 12-megapixel(f/2.4) | 16-megapixel(f/1.75) | |||
| Main camera 2 details | 120° Ultra Wide Angle | |||||
| Main camera 3 | ||||||
| Main camera 3 details | ||||||
| Main camera 4 | ||||||
| Main camera 4 details | ||||||
| Main camera 5 | ||||||
| Main camera 5 details | ||||||
| Sub camera 1 | 8-megapixel | 8-megapixel | 8-megapixel(f/2.2) | 8-megapixel(f/2.2) | 12-megapixel(f/2.2) | 20-megapixel(f/2) |
| Sub camera 1 details | ||||||
| Sub camera 2 | ||||||
| Sub camera 2 details | ||||||
| Battery | 2,500 mAh | 3,300 mAh | 2,500 mAh | 3,500 mAh | 3,430 mAh | |
| Video playback time | 17 hours | |||||
| RAM(GB) | 3 G | 6 G | 4 G | 6 G | 6 G | |
| ROM(GB) | 32 G | 64 G | 64 G | 64 G | 128 G | 128 G |
| Antutu | 106,000 ver6 | 106,000 ver6 | 270,000 ver7(estimated) | 114,000 ver7 | 809,000 ver9 | 146,000 ver7 |
| Water resistance | IPX5/IPX8 | - | IPX5/IPX8 | - | IPX8 | IPX7 |
| Dust resistance | IP6X | - | IP6X | - | IP6X | - |
| SIM | dual SIM（nano-SIM,eSIM）dual eSIM | |||||
| NFC | Felica |