Let's compare each phone and tablet in the specs table.
| Pixel 3a | Pixel 3a XL | OPPO R17 Pro | Pixel 3 | Galaxy A21 | arrows Be4 Plus | |
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| Manufacturer | OPPO | SAMSUNG | FCNT | |||
| Release Date | ||||||
| Screen Size | 5.6 inch | 6 inch | 6.4 inch | 5.5 inch | 5.8 inch | 5.6 inch |
| Resolution | 1,080 x 2,220 | 1,080 x 2,160 | 1,080 x 2,340 | 1,080 x 2,160 | 720 x 1,560 | 720 x 1,480 |
| Display Details | OLED | OLED | OLED | |||
| Max Refresh Rate | ||||||
| Max Brightness | ||||||
| Glass | ||||||
| Body Size | 70.1mm x 151.3mm x 8.2mm | 76.1mm x 160.1mm x 8.2mm | 74.6mm x 157.6mm x 7.9mm | 68.2mm x 145.6mm x 7.9mm | 71mm x 150mm x 8.4mm | 71mm x 148mm x 9.4mm |
| Weight | 147 g | 167 g | 183 g | 148 g | 159 g | 160 g |
| Processor | Qualcomm Snapdragon 670 2.0 GHz + 1.7 GHz, 64-bit octa-core | Qualcomm Snapdragon 670 2.0 GHz + 1.7 GHz, 64-bit octa-core | Qualcomm Snapdragon 710 | Qualcomm Snapdragon 845 2.5 GHz + 1.6 GHz, 64-bit octa-core | Samsung Exynos 7884B 1.6GHz x 2 + 1.3GHz x 6 | Qualcomm Snapdragon 460 1.6GHz＋1.8GHz octa-core |
| OS | Android 9 | Android 9 | Android 8.1 | Android 9 | Android 10 | Android 11 |
| Main camera 1 | 12-megapixel(f/1.8) | 12-megapixel(f/1.8) | 12-megapixel(f/1.5) | 12-megapixel(f/1.8) | 13-megapixel(f/1.9) | 13-megapixel(f/1.8) |
| Main camera 1 details | Pixel size 1.4μm | Pixel size 1.4μm | Switch to f/2.4 depending on the scene | |||
| Main camera 2 | 20-megapixel | |||||
| Main camera 2 details | For background blur | |||||
| 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(f/2) | 8-megapixel(f/2) | 25-megapixel | 8-megapixel(f/1.8) | 5-megapixel(f/2) | 8-megapixel(f/2) |
| Sub camera 1 details | 画素サイズ1.12μm | 画素サイズ1.12μm | ||||
| Sub camera 2 | 8-megapixel(f/2.2) | |||||
| Sub camera 2 details | 広角97° | |||||
| Battery | 3,000 mAh | 3,700 mAh | 3,700 mAh | 2,915 mAh | 3,600 mAh | 3,600 mAh |
| Charge | ||||||
| Video playback time | ||||||
| RAM(GB) | 4G | 4G | 6G | 4G | 3G | 4G |
| RAM details | ||||||
| ROM(GB) | 64G | 64G | 128G | 64G | 64G | 64G |
| ROM details | ||||||
| Antutu | 153,000 ver7 | 153,000 ver7 | 155,000 ver7 | 281,000 ver7 | 91,000 ver7 | 135,000 ver8(estimated) |
| Water resistance | IPX2 | IPX2 | - | IPX8 | IPX5/IPX8 | IPX5/IPX8 |
| Dust resistance | IP5X | IP5X | - | IP6X | IP6X | IP6X |
| SIM | nanoSIM | nanoSIM | nanoSIM | |||
| NFC | Felica | Felica | Felica |