Compare phones
| Global Score | |
| 71.6 | 77.7 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10, 9.0 Pie | Android 10 |
| 2019-05-21 | 2020-06-19 |
| 6.21 x 2.94 x 0.32 inches | 6.44 x 2.96 x 0.35 inches |
| 6.42 ounces | 6.77 ounces |
| Mirror gray | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) and Metal | -- |
| Scratch-Resistant Glass | -- |
| $ 319.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 403 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Samsung Exynos 850 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 640 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/1.70 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") 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 | 10.78 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3700mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s has a global score of 77.7, which is slightly better than OnePlus 7's overall score of 71.6. Both devices we are comparing use Android operating system, but the Galaxy A21s has older 10 version and OnePlus 7 has Android 11 version. Galaxy A21s is a newer cellphone than OnePlus 7, but it's a little bit heavier and a little thicker.
The OnePlus 7 features just a bit better performance than Samsung Galaxy A21s, and although they both have 8 cores, the OnePlus 7 also has a larger amount of RAM memory. OnePlus 7 has a much better display than Galaxy A21s, because although it has a little smaller screen, it also counts with a higher pixels quantity per display inch and a much better resolution of 1080 x 2340 pixels.
OnePlus 7 shoots much better pictures and videos than Samsung Galaxy A21s, and although they both have a 48 MP camera in the back and a same size sensor, the OnePlus 7 also has a much better video definition and a bigger aperture to take better low light captures and videos. The OnePlus 7 counts with slightly more storage capacity to install games and applications than Samsung Galaxy A21s, because although it has no external memory slot, it also counts with 128 GB internal memory capacity.
Galaxy A21s features better battery performance than OnePlus 7, because it has a 35 percent more battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.