Compare phones
| Global Score | |
| 74.7 | 90.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10, 9.0 Pie | Android 11, 10 |
| 2019-04-10 | 2020-04-29 |
| 6.24 x 2.94 x 0.31 inches | 6.26 x 2.90 x 0.34 inches |
| 5.96 ounces | 6.60 ounces |
| Black,Deep blue and Red | Prism cube black |
| Plastic | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 166.00 | $ 339.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 1560 x 720 pixels | 2400 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 268 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.1 |
| Performance | |
| Samsung Exynos 7884 chipset | Samsung Exynos 980 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G71 MP2 GPU | Mali-G76 MP5 GPU |
| 8.91 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1000 GB) external memory slot |
| 9.84 | 15.38 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.32 inches (1/3.1") sensor | 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 (480 fps) (HD) slow motion video |
| 9.02 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A51 5G is a lot better than the Samsung Galaxy A20, getting a 90.8 score against 74.7. Although the Samsung Galaxy A51 5G is newer than Samsung Galaxy A20, it's a little bit thicker and a little heavier. Both phones in this review use the same Android 11 operating system, so they should count with identical operating system features.
Galaxy A51 5G features a brighter screen than Galaxy A20, because it has a little larger display, a way better number of pixels per inch in the screen and a much better resolution of 1080 x 2400. Samsung Galaxy A51 5G counts with a little better hardware performance than Samsung Galaxy A20, and although they both have the same number of cores, the Samsung Galaxy A51 5G also has more RAM memory.
The Galaxy A51 5G counts with a lot better camera than Samsung Galaxy A20, because although it has a smaller diafragm aperture, it also counts with a lot bigger camera sensor taking way higher quality photographs and videos, a much better 3840x2160 video resolution and a way more MP back facing camera.
The Galaxy A51 5G features a lot bigger memory to install applications and games or saving photos and videos than Samsung Galaxy A20, because it has 96 GB more internal memory and a SD memory slot that allows up to 1000 GB. The Galaxy A51 5G features a bit better battery life than Galaxy A20, because it has 4500mAh of battery capacity instead of 4000mAh.
The Galaxy A51 5G is way more expensive than the Samsung Galaxy A20, but you can get a much better phone for that extra money.
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