Compare phones
| Global Score | |
| 72.2 | 76.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10 | Android 10 |
| 2019-10-18 | 2020-06-29 |
| 6.34 x 2.93 x 0.32 inches | 6.61 x 3.02 x 0.32 inches |
| 6.70 ounces | 6.81 ounces |
| Frosted silver and Glacier blue | Black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 248.00 | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Mediatek Helio P35 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 640 GPU | PowerVR GE8320 GPU |
| 9.72 | 9.27 |
| 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 | 16.00 MP + 13.00 MP |
| f/1.60 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 11.99 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3800mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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
Galaxy A21 is slightly better than OnePlus 7T, getting a 76.1 score against 72.2. The Galaxy A21 is a just a little bit heavier device than OnePlus 7T, but both of them have the same thickness. Both of these devices include Android operating system, but the Galaxy A21 has the older 10 version while OnePlus 7T has Android 11 version.
OnePlus 7T has a brighter screen than Samsung Galaxy A21, and although they both have a screen of the same size, the OnePlus 7T also has a better display pixels density and a way higher 1080 x 2400 pixels resolution. OnePlus 7T features a little bit better performance than Samsung Galaxy A21, and although they both have a Octa-Core CPU, the OnePlus 7T also has more RAM memory.
The OnePlus 7T features a bit bigger storage for games and applications than Samsung Galaxy A21, because although it has no slot for external memory cards, it also counts with more internal storage capacity. The Galaxy A21 counts with just a little better battery performance than OnePlus 7T, because it has a 4000mAh battery size against 3800mAh.
The OnePlus 7T shoots a lot better videos and photos than Samsung Galaxy A21, because it has a bigger aperture to take better low-light captures and video, a lot bigger sensor providing a way better image quality, a much higher video resolution and a lot higher 48 megapixels resolution camera.
Galaxy A21 is not only the best phones of the ones we are comparing here, but it's also a lot cheaper, which makes it a great choice.
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