Compare phones
| Global Score | |
| 72.2 | 76.1 |
| Basic Information | |
| Oppo | Samsung |
| Android 8.1 Oreo | Android 10 |
| 2018-07-25 | 2020-06-29 |
| 6.17 x 2.92 x 0.38 inches | 6.61 x 3.02 x 0.32 inches |
| 6.56 ounces | 6.81 ounces |
| Blue and Red | Black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 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 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 + 25.00 MP | 16.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 0.38 inches (1/2.6") 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 (240 fps) (HD) slow motion video | -- |
| 10.12 | 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 |
| Micro SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3730mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.68 | 5.92 |
| Other Features | |
| Bluetooth 5.0, EDR | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | 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 has a global score of 76.1, which is just a bit better than OPPO Find X's 72.2 overall score. Both phones in our current comparison include Android operating system, but Galaxy A21 has 10 version and OPPO Find X has Android 8.1 Oreo version. The Galaxy A21 construction is newer and somewhat thinner, but also a little heavier than the OPPO Find X.
OPPO Find X counts with just a little better hardware performance than Galaxy A21, and although they both have a Octa-Core processing unit, the OPPO Find X also has a larger amount of RAM. The OPPO Find X counts with a much better screen than Galaxy A21, because although it has a little bit smaller screen, it also counts with a lot better resolution of 1080 x 2340px and a better pixels density.
The OPPO Find X counts with a very superior memory capacity for games and applications than Samsung Galaxy A21, because although it has no external memory slot, it also counts with 256 GB internal memory capacity. OPPO Find X takes a little bit better pictures and videos than Galaxy A21, because although it has a tinier camera aperture which is not recommended for shooting images and videos in low-light situations, and they both have a back-facing camera with a 16 mega-pixels, the OPPO Find X also counts with a bigger back-facing camera sensor capturing more light and vivid colors and a much higher video definition.
The Galaxy A21 features a bit longer battery life than OPPO Find X, because it has a 7% larger battery capacity.
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