Compare phones
| Global Score | |
| 72.2 | 84.1 |
| Basic Information | |
| OnePlus | Samsung |
| Android 11, 10 | Android 11, 10 |
| 2019-10-18 | 2020-03-23 |
| 6.34 x 2.93 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.70 ounces | 6.63 ounces |
| Frosted silver and Glacier blue | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 248.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 48.00 MP + 16.00 MP | 48.00 MP + 20.00 MP |
| f/1.60 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.99 | 11.55 |
| 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 | |
| 3800mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M21 has a global score of 84.1, which is much better than the OnePlus 7T's global score of 72.2. These phones have the same Android 11 OS. The Samsung Galaxy M21 construction is just a bit lighter but a little thicker than OnePlus 7T, and both were only released with a couple of months difference.
OnePlus 7T has a bit better performance than Samsung Galaxy M21, and although they both have the same number of cores, the OnePlus 7T also has a larger amount of RAM. The Galaxy M21 features a little sharper display than OnePlus 7T, although it has a quite smaller display, a little lower 1080 x 2340 resolution and a little lower amount of pixels per screen inch.
OnePlus 7T shoots a bit better photographs and videos than Galaxy M21, and although they both have the same resolution camera, the same video definition and a same size camera sensor, the OnePlus 7T also has a bigger diafragm aperture to capture better low light photography and video and higher video frame rate.
Samsung Galaxy M21 counts with a quite bigger storage capacity for games and applications than OnePlus 7T, because although it has just 64 GB internal memory, it also counts with a SD memory card expansion slot that admits up to 512 GB. Galaxy M21 has a much longer battery duration than OnePlus 7T, because it has a 6000mAh battery size against 3800mAh.
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