Compare phones
| Global Score | |
| 71.6 | 76.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10, 9.0 Pie | Android 10 |
| 2019-05-21 | 2020-06-29 |
| 6.21 x 2.94 x 0.32 inches | 6.61 x 3.02 x 0.32 inches |
| 6.42 ounces | 6.81 ounces |
| Mirror gray | Black |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 319.00 | $ 194.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 403 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Mediatek Helio P35 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 640 GPU | PowerVR GE8320 GPU |
| 9.63 | 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/1.70 aperture | f/1.80 aperture |
| 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 (480 fps) (HD) slow motion video | -- |
| 11.88 | 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 | |
| 3700mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 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
The Galaxy A21 is a bit better than the OnePlus 7, getting a 76.1 score against 71.6. Both of these phones have Android OS (Operating System), but the Galaxy A21 has the previous 10 version and OnePlus 7 has Android 11 version. Galaxy A21 is a a little heavier phone than OnePlus 7, but both of them have the same thickness.
The OnePlus 7 features a bit better hardware performance than Samsung Galaxy A21, and although they both have the same number of cores, the OnePlus 7 also has a higher amount of RAM memory. OnePlus 7 counts with a much better screen than Galaxy A21, because although it has a little smaller display, it also counts with a lot higher 1080 x 2340 resolution and a better pixel density.
The OnePlus 7 shoots much clearer photos and videos than Galaxy A21, because it has a way higher (4K) video definition, a lot more mega-pixels camera in the back, a larger aperture and a lot bigger sensor which gives a lot higher photo and video quality. The OnePlus 7 features just a bit bigger memory to install applications and games or saving photos and videos than Galaxy A21, because although it has no slot for SD memory cards, it also counts with more internal storage capacity.
The Samsung Galaxy A21 counts with a bit better battery life than OnePlus 7, because it has a 4000mAh battery capacity.
The Galaxy A21 not only is the best devices between the ones we are comparing, but it's also by far the cheapest one.
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