Compare phones
| Global Score | |
| 84.2 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-10-20 | 2020-06-29 |
| 6.29 x 3.02 x 0.30 inches | 6.61 x 3.02 x 0.32 inches |
| 5.93 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Glass (Corning Gorilla Glass 3) and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2220 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 411 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7885 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Mali-G71 MP2 GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 24.00 MP + 24.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 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 |
| 9.9 | 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 |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy A7 (2018) has an overall score of 84.2, which is better than Galaxy A21's global score of 76.1. The Galaxy A7 (2018) construction is just a little thinner and lighter than Galaxy A21, despite of the fact that it was released about 21 months before. The Samsung Galaxy A7 (2018) has a sharper display than Samsung Galaxy A21, because although it has a bit smaller display, it also counts with much more pixels per inch in the screen and a way higher 1080 x 2220 resolution.
The Samsung Galaxy A21 features a processing unit that's just as good as Galaxy A7 (2018)'s CPU, and although the Samsung Galaxy A21 has less RAM, they both have a Octa-Core CPU. Galaxy A7 (2018) has a little bit better camera than Galaxy A21, and although they both have the same video frame rates and the same 1920x1080 (Full HD) video resolution, the Galaxy A7 (2018) also has a bigger aperture, a larger camera sensor and a lot more mega-pixels back-facing camera.
Galaxy A7 (2018) features a lot bigger storage to store more apps and games than Galaxy A21, and although they both have an external SD slot that admits up to 512 GB, the Galaxy A7 (2018) also has 128 GB internal storage capacity. Samsung Galaxy A21 counts with superior battery lifetime than Galaxy A7 (2018), because it has a 4000mAh battery capacity.
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