Compare phones
| Global Score | |
| 77.7 | 76 |
| Basic Information | |
| Samsung | OnePlus |
| Android 10 | Android 11 |
| 2020-06-19 | 2021-04-02 |
| 6.44 x 2.96 x 0.35 inches | 6.30 x 2.92 x 0.34 inches |
| 6.77 ounces | 6.77 ounces |
| Black, Blue, Red and White | Arctic Sky, Astral Black and Winter Mist |
| -- | Aluminum and Glass (Corning Gorilla Glass) |
| -- | Scratch-Resistant Glass |
| -- | $ 700.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| TFT | AMOLED |
| 270 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.2 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| Mali-G76 GPU | Adreno 660 GPU |
| 9.09 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 23.00mm focal length |
| 0.5 inches (1/2") sensor | 0.71 inches (1/1.4") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.78 | 12.65 |
| 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, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Samsung Galaxy A21s has a score of 77.7, which is a bit better than the OnePlus 9's global score of 76. These devices use Android OS (operating system), but the Samsung Galaxy A21s has the previous 10 version and OnePlus 9 has Android 11 version. Samsung Galaxy A21s's design has the same weight than the OnePlus 9, but it's a little thicker.
The OnePlus 9 has a little faster processing unit than Samsung Galaxy A21s, and although they both have the same number of cores, the OnePlus 9 also has a larger amount of RAM memory. OnePlus 9 features a better looking display than Galaxy A21s, and although they both have a screen of the same size, the OnePlus 9 also has a much higher 1080 x 2400 resolution and a better pixels density.
OnePlus 9 captures better pictures and videos than Galaxy A21s, and although they both have a same resolution camera in the back, the OnePlus 9 also has a bigger camera aperture for better low-light images and video, a lot bigger camera sensor and a lot higher video definition. The OnePlus 9 features a slightly bigger memory to install games and applications than Samsung Galaxy A21s, because although it has no slot for an external memory card, it also counts with 96 GB more internal storage.
Samsung Galaxy A21s has just a little bit longer battery lifetime than OnePlus 9, because it has an 11% larger battery capacity.
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