Compare phones
| Global Score | |
| 76.1 | 76.6 |
| Basic Information | |
| Samsung | OnePlus |
| Android 10 | Android 11 |
| 2020-06-29 | 2021-04-02 |
| 6.61 x 3.02 x 0.32 inches | 6.43 x 2.90 x 0.34 inches |
| 6.81 ounces | 6.95 ounces |
| Black | Forest Green, Morning Mist and Stellar Black |
| Plastic and Plastic | Glass (Corning Gorilla Glass) |
| -- | Scratch-Resistant Glass |
| $ 194.00 | $ 890.00 |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | 3216 x 1440 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 526 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.8 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| PowerVR GE8320 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 16.00 MP + 13.00 MP | 48.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 23.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.71 inches (1/1.4") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.35 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| 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 OnePlus 9 Pro has a score of 76.6, which is a bit better than Galaxy A21's 76.1 general score. Although the OnePlus 9 Pro is newer than the Galaxy A21, it is a bit thicker and just a little bit heavier. These phones include Android operating system, but the OnePlus 9 Pro has a more recent 11 version and Galaxy A21 has Android 10, so it provides the user a couple additional features.
OnePlus 9 Pro counts with a lot better looking screen than Samsung Galaxy A21, because it has much more pixels per inch of screen, a little bigger display and a much higher 1440 x 3216 resolution. The OnePlus 9 Pro counts with just a little better hardware performance than Galaxy A21, and although they both have a Octa-Core processing unit, the OnePlus 9 Pro also has a higher amount of RAM.
The OnePlus 9 Pro features a way better camera than Samsung Galaxy A21, and although they both have the same aperture, the OnePlus 9 Pro also has a lot higher video resolution, a much more mega pixels back-facing camera and a way larger sensor taking lot higher quality videos and pictures. The OnePlus 9 Pro features a slightly better memory capacity for applications, games, photos and videos than Galaxy A21, because although it has no slot for external memory cards, it also counts with 96 GB more internal storage.
The OnePlus 9 Pro has a bit longer battery life than Samsung Galaxy A21, because it has 4500mAh of battery capacity.
Although OnePlus 9 Pro is a better device, it is a lot more expensive than the Galaxy A21, and it doesn't have such a good relation between it's price and quality as the Galaxy A21. So if you want that extra features, you can buy the OnePlus 9 Pro, but if you don't you can save some dollars and get the Galaxy A21, resigning some specifications.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.