Compare phones
| Global Score | |
| 76.6 | 77.7 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11 | Android 10 |
| 2021-04-02 | 2020-06-19 |
| 6.43 x 2.90 x 0.34 inches | 6.44 x 2.96 x 0.35 inches |
| 6.95 ounces | 6.77 ounces |
| Forest Green, Morning Mist and Stellar Black | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass) | -- |
| Scratch-Resistant Glass | -- |
| $ 890.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 3216 x 1440 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 526 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.8 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Samsung Exynos 850 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 660 GPU | Mali-G76 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 23.00mm focal length | 26.00mm focal length |
| 0.71 inches (1/1.4") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 12.65 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s has a global score of 77.7, which is just a bit better than the OnePlus 9 Pro's overall score of 76.6. Both phones in this comparison review use Android OS (Operating System), but the Galaxy A21s has the older 10 version and OnePlus 9 Pro has Android 11. Despite of the fact Galaxy A21s is older and just a little bit thicker than the OnePlus 9 Pro, it's body is still a little bit lighter.
OnePlus 9 Pro has a much better display than Samsung Galaxy A21s, because it has a quite bigger screen, a much better resolution of 1440 x 3216 pixels and a lot better pixel quantity per display inch. OnePlus 9 Pro counts with a bit bigger memory for games and applications than Galaxy A21s, because although it has no SD memory card expansion slot, it also counts with 128 GB internal storage capacity.
The OnePlus 9 Pro counts with a little faster processing unit than Galaxy A21s, and although they both have a Octa-Core processing unit, the OnePlus 9 Pro also has a higher amount of RAM. OnePlus 9 Pro shoots much clearer photographs and videos than Samsung Galaxy A21s, and although they both have a same resolution camera, the OnePlus 9 Pro also has a bigger camera aperture to capture better low-light captures and video, a way larger back camera sensor taking more light and vivid colors and a way better 7680x4320 video definition.
The Galaxy A21s features a bit better battery performance than OnePlus 9 Pro, because it has 5000mAh of battery capacity.
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