Compare phones
| Global Score | |
| 73.3 | 76.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10, 9.0 Pie, 8.1 Oreo | Android 10 |
| 2018-05-22 | 2020-06-29 |
| 6.13 x 2.97 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 6.24 ounces | 6.81 ounces |
| Black, Red and White | Black |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 211.00 | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2280 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 400 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Mediatek Helio P35 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 630 GPU | PowerVR GE8320 GPU |
| 9.63 | 9.27 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 16.00 MP + 16.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 25.00mm focal length | -- |
| 0.38 inches (1/2.6") 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 | -- |
| 10.45 | 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 | |
| 3300mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 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 Samsung Galaxy A21 is just a bit better than the OnePlus 6, with a 76.1 score against 73.3. These phones include Android OS (Operating System), but the Samsung Galaxy A21 has the older 10 version while OnePlus 6 has Android 11 version. The Samsung Galaxy A21 construction is way newer than the OnePlus 6's, but it is just a bit heavier and just a little bit thicker.
OnePlus 6 has a better display than Samsung Galaxy A21, because although it has a little smaller screen, it also counts with a higher pixel count per inch of display and a much better 1080 x 2280 resolution. OnePlus 6 features just a bit better hardware performance than Samsung Galaxy A21, and although they both have a Octa-Core processing unit, the OnePlus 6 also has 5 GB more RAM.
OnePlus 6 has a very superior storage capacity for applications and games than Galaxy A21, because although it has no external SD slot, it also counts with 256 GB internal storage capacity. Samsung Galaxy A21 counts with greater battery duration than OnePlus 6, because it has a 21% greater battery size.
OnePlus 6 captures much better videos and photos than Galaxy A21, and although they both have the same resolution back-facing camera, the OnePlus 6 also has a bigger diafragm aperture to take better low light images and video, a much better video quality and a bigger back camera sensor taking higher quality pictures.
The Galaxy A21 is not only the best devices of the ones we are comparing here, but it's also cheaper than the OnePlus 6.
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