Compare phones
| Global Score | |
| 74.5 | 85.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2021-01-04 | 2019-12-27 |
| 6.46 x 2.99 x 0.36 inches | 6.24 x 2.90 x 0.31 inches |
| 6.91 ounces | 6.07 ounces |
| Black, Blue and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Plastic and Plastic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 170.00 | $ 282.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 chipset | Samsung Exynos 9611 chipset |
| Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.12 | 14.14 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 8.8 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A51 has an overall score of 85.5, which is much better than the Galaxy A02s's 74.5 global score. Even though the Galaxy A51 is older than the Galaxy A02s, it's construction is thinner and lighter. Both of these phones use the same Android 11 OS (operating system). The Galaxy A51 counts with just a bit better processing power than Galaxy A02s, and although they both have a Octa-Core processing unit, the Galaxy A51 also has a greater amount of RAM memory.
The Samsung Galaxy A51 counts with a better looking display than Galaxy A02s, and although they both have a display with the same size, the Samsung Galaxy A51 also has more pixels per display inch and a much higher resolution of 1080 x 2400px. The Galaxy A51 counts with a way better camera than Galaxy A02s, because it has a bigger aperture, a camera in the back with a much higher 48 mega pixels resolution and a lot better 3840x2160 (4K) video definition.
The Galaxy A51 counts with a much bigger storage to install games and applications than Galaxy A02s, because although it has a slot for an SD memory card that admits 512 GB smaller, it also counts with 128 GB internal memory. Galaxy A02s counts with superior battery lifetime than Samsung Galaxy A51, because it has 5000mAh of battery capacity.
Samsung Galaxy A51 costs a lot more money than the Samsung Galaxy A02s, but it's still a good choice, because you can get a better phone for that extra money.
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