Compare phones
| Global Score | |
| 76 | 77.7 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11 | Android 10 |
| 2021-04-02 | 2020-06-19 |
| 6.30 x 2.92 x 0.34 inches | 6.44 x 2.96 x 0.35 inches |
| 6.77 ounces | 6.77 ounces |
| Arctic Sky, Astral Black and Winter Mist | Black, Blue, Red and White |
| Aluminum and Glass (Corning Gorilla Glass) | -- |
| Scratch-Resistant Glass | -- |
| $ 700.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 405 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 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
The Galaxy A21s has a general score of 77.7, which is just a bit better than OnePlus 9's overall score of 76. Both devices we compare here include Android OS (operating system), but the Galaxy A21s has older 10 version and OnePlus 9 has Android 11 version. Galaxy A21s's body weights the same than OnePlus 9, but it is just a bit thicker.
OnePlus 9 features a little faster processing unit than Galaxy A21s, and although they both have a Octa-Core processor, the OnePlus 9 also has 5 GB more RAM. OnePlus 9 counts with a more vivid screen than Galaxy A21s, and although they both have a same size display, the OnePlus 9 also has a higher screen pixel density and a way higher resolution of 1080 x 2400 pixels.
The OnePlus 9 shoots better photographs and videos than Galaxy A21s, and although they both have a 48 megapixels back-facing camera, the OnePlus 9 also has a bigger aperture to take better images and videos in low-light situations, a lot higher 7680x4320 video quality and a way larger camera sensor capturing more light and vivid colors.
OnePlus 9 has a bit bigger storage for applications, games, photos and videos than Samsung Galaxy A21s, because although it has no SD memory slot, it also counts with 96 GB more internal storage capacity. Galaxy A21s counts with a bit superior battery life than OnePlus 9, because it has a 5000mAh battery size instead of 4500mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.