| Global Score | |
| 73.5 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android | Android 10 |
| 2016-10-24 | 2020-06-29 |
| 5.97 x 2.95 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 5.89 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Metal | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| -- | IPS LCD |
| 401 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali-T830 MP2 GPU | PowerVR GE8320 GPU |
| 8.73 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 9.84 |
| Camera | |
| 13.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.91 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 5.4 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy A21 is just a bit better than the Galaxy On Nxt, with a 76.1 score against 73.5. Samsung Galaxy A21 works with Android 10 OS, and Galaxy On Nxt works with Android OS. Samsung Galaxy A21's body is much newer, but somewhat heavier and a bit thicker than Galaxy On Nxt.
The Samsung Galaxy A21 counts with a bit more powerful CPU than Galaxy On Nxt. Both have a Octa-Core processor and the same RAM amount. Samsung Galaxy On Nxt counts with a bit better display than Samsung Galaxy A21, because although it has a little bit smaller display, it also counts with a higher screen pixel density and a better 1080 x 1920 resolution.
Galaxy A21 counts with a bigger memory capacity to store more apps and games than Samsung Galaxy On Nxt, and although they both have exactly the same internal memory, the Galaxy A21 also has a slot for SD memory cards that admits up to 512 GB. Samsung Galaxy A21 counts with just a bit better camera than Galaxy On Nxt, and although they both have the same 30 frames per second video frame rate and the same video definition, the Samsung Galaxy A21 also has a camera in the back with more MP and a larger aperture to take better low-light photography and videos.
Samsung Galaxy A21 has superior battery lifetime than Samsung Galaxy On Nxt, because it has a 21% greater battery size.
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