Let's compare each phone and tablet in the specs table.
| FREETEL REI 2 Dual | Simple smartphone 5 | Xperia Ace III | OPPO R15 Neo | LG K50 | Xperia Ace II | |
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| Manufacturer | FREETEL | SHARP | Sony Mobile Communications | OPPO | LG | Sony Mobile Communications |
| Release Date | ||||||
| Screen Size | 5.5 inch | 5.5 inch | 5.5 inch | 6.2 inch | 6.26 inch | 5.5 inch |
| Resolution | 1,080 x 1,920 | 1,080 x 2,160 | 720 x 1,496 | 720 x 1,520 | 720 x 1,520 | 720 x 1,496 |
| Display Details | LCD | |||||
| Max Refresh Rate | 60 Hz | |||||
| Max Brightness | ||||||
| Body Size | 75mm x 152mm x 7.9mm | 70mm x 154mm x 9.3mm | 69mm x 140mm x 8.9mm | 75.6mm x 156.2mm x 8.2mm | 77mm x 161mm x 8.7mm | 69mm x 140mm x 8.9mm |
| Weight | 158 g | 168 g | 162 g | 168 g | 172 g | 159 g |
| Processor | Qualcomm Snapdragon 625 (8×2.0GHz) | Qualcomm Snapdragon 450 1.8GHz octa-core | Qualcomm Snapdragon 480 5G 2.0GHz＋1.8GHz octa-core | Qualcomm Snapdragon 450 | MediaTek Helio P22 2.0GHz (quad-core) + 1.5GHz (quad-core) | MediaTek Helio P35 2.3GHz＋1.8GHz octa-core |
| OS | Android 7.1.1 | Android 10 | Android 12 | Android 8.1 | Android 9 | Android 11 |
| Main camera 1 | 130-megapixel(f/2.2) | 13-megapixel | 13-megapixel(f/1.8) | 13-megapixel(f/2.2) | 13-megapixel | 13-megapixel(f/2) |
| Main camera 1 details | ||||||
| Main camera 2 | 130-megapixel(f/2) | 5-megapixel | 2-megapixel(f/2.4) | 2-megapixel | 2-megapixel(f/2.4) | |
| Main camera 2 details | depth imaging | |||||
| Main camera 3 | ||||||
| Main camera 3 details | ||||||
| Main camera 4 | ||||||
| Main camera 4 details | ||||||
| Main camera 5 | ||||||
| Main camera 5 details | ||||||
| Sub camera 1 | 160-megapixel(f/2) | 8-megapixel | 5-megapixel(f/2.2) | 8-megapixel(f/2.2) | 13-megapixel | 8-megapixel(f/2) |
| Sub camera 1 details | ||||||
| Sub camera 2 | ||||||
| Sub camera 2 details | ||||||
| Battery | 3,300 mAh | 4,000 mAh | 4,500 mAh | 4,230 mAh | 3,500 mAh | 4,500 mAh |
| Video playback time | 14 hours | |||||
| RAM(GB) | 4 G | 3 G | 4 G | 4 G | 3 G | 4 G |
| ROM(GB) | 64 G | 32 G | 64 G | 64 G | 32 G | 64 G |
| Antutu | 78,000 ver7 | 72,000 ver7(estimated) | 285,000 ver9 | 75,000 ver7 | 76,000 ver7(estimated) | 95,000 ver8(estimated) |
| Water resistance | - | IPX5/IPX8 | IPX5/IPX8 | - | - | IPX5/IPX8 |
| Dust resistance | - | IP6X | IP6X | - | - | IP6X |
| SIM | nanoSIM | |||||
| NFC | Felica | Felica |