Compare phones
| Global Score | |
| 69.6 | 76.1 |
| Basic Information | |
| OnePlus | Samsung |
| -- | Android 10 |
| 2017-06-22 | 2020-06-29 |
| 6.07 x 2.92 x 0.29 inches | 6.61 x 3.02 x 0.32 inches |
| 5.40 ounces | 6.81 ounces |
| Gold and Gray | Black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 539.00 | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| AMOLED | IPS LCD |
| 401 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 835 MSM8998 chipset | Mediatek Helio P35 chipset |
| Kryo, 64-bit, 10 nm (Octa-Core 2457 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 540 GPU | PowerVR GE8320 GPU |
| 9.45 | 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 | |
| 16.00 MP + 16.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 10.01 | 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A21 is slightly better than the OnePlus 5, having a 76.1 score against 69.6. Even though the Galaxy A21 is noticeably newer than OnePlus 5, it's a little thicker and incredibly heavier. The OnePlus 5 counts with a bit better performance than Galaxy A21, and although they both have the same number of cores, the OnePlus 5 also has more RAM memory.
OnePlus 5 has a much better screen than Samsung Galaxy A21, because although it has a little smaller display, it also counts with a better display density and a higher 1080 x 1920 resolution. OnePlus 5 features just a bit more storage capacity to install games and applications than Galaxy A21, because although it has no SD extension slot, it also counts with 96 GB more internal memory.
The OnePlus 5 counts with just a bit better camera than Samsung Galaxy A21, and although they both have a back facing camera with a 16 megapixels resolution, the OnePlus 5 also has a bigger camera aperture, a larger sensor taking better quality videos and photographs and a much higher 3840x2160 (4K) video quality.
The Samsung Galaxy A21 counts with greater battery duration than OnePlus 5, because it has a 4000mAh battery size.
Even being the best phone in this comparison, the Galaxy A21 is also very cheap compared to the other ones, making it a great choice.
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