Samsung Galaxy A51 5G vs POCO X3 Pro
| Type | Touch | Touch | Touch | Touch |
| Waterproofness & dust-resistance | IP53 | IP52 | ||
| Dimensions | 158.90 x 73.60 x 8.70 mm | 165.30 x 76.80 x 9.40 mm | 163.00 x 76.00 x 7.99 mm | 165.20 x 75.20 x 8.30 mm |
| Weight | 187.00 g | 215.00 g | 190.00 g | 173.70 g |
| Display size | 6.50" | 6.67" | 6.70" | 6.52" |
| Display | Color / Super AMOLED 16M colors 1080 x 2340 px (6.50") 396 ppi | Color / IPS TFT 16M colors 120 Hz 1080 x 2400 px (6.67") 395 ppi | Color / OLED 1,07G colors 144 Hz 1080 x 2520 px (6.70") 409 ppi | Color / IPS TFT 16M colors 60 Hz 720 x 1600 px (6.52") 269 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| Corning Gorilla Glass Buy screen protector
| ||
| Additional display | ||||
| Protection of the secondary display | ||||
| Standard battery | Li-Ion 4500 mAhBuy powerbank
| Li-Ion 5160 mAhBuy powerbank
| Li-Ion 4500 mAhBuy powerbank
| Li-Ion 3200 mAhBuy powerbank
|
| Quick battery charging | Fast Charging | TurboPower | ||
| Wireless battery charging | ||||
| Internal memory | 128 GB | 128 GB, 256 GB | 256 GB | 32 GB, 64 GB |
| RAM memory | 6 GB, 8 GB | 6 GB, 8 GB | 12 GB | 2 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | |
| Operating system | Android 10 | Android 11 | Android 11 | Android 11 Go |
| Interface | One UI 2.0 | MIUI 12 | - | - |
| Processor | - | Qualcomm Snapdragon 860 | Qualcomm Snapdragon 870 SM8250 | Unisoc SC9863A |
| Processor clock | 2200 MHz | 2960 MHz | 3200 MHz | 1600 MHz |
| GPU | - | Adreno 640 | Adreno 650 | IMG8322 @550 MHz |
| Touchscreen | ||||
| DualSIM | ||||
| SIM cards standard | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby | dual standby | dual standby |
| Announced | 2Q 2020 | 1Q 2021 | 3Q 2021 | 3Q 2021 |
| Other names | SM-A516N | M2102J20SG | Sierra | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 1900, 1700, 850, 700 TDD LTE: 2500 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2500, 2300, 260 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 1500, 900, 850, 800, 700 TDD LTE: 3700, 3500, 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600 |
| Standard 5G | FDD 5G: 2600, 2100, 1800, 1700, 900, 850, 700 TDD 5G: 3700, 3500, 2600, 2500 | |||
| CDMA | ||||
| Standard TD-SCDMA | ||||
| UMA |



