Compare phones
| Global Score | |
| 75.8 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2017-01-13 | 2020-06-29 |
| 6.17 x 3.06 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 6.56 ounces | 6.81 ounces |
| Black sky, Blue mist, Gold sand and Peach cloud | Black |
| Aluminum and Glass (Corning Gorilla Glass 4) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 386 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7880 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali-T830 MP3 GPU | PowerVR GE8320 GPU |
| 9 | 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 | |
| 16.00 MP + 16.00 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 |
| 9.24 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3600mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy A21 is slightly better than Galaxy A7 (2017), getting a global score of 76.1 against 75.8. Samsung Galaxy A21's design is much newer, but just a little thicker and just a little bit heavier than the Galaxy A7 (2017). The Samsung Galaxy A7 (2017) counts with just a bit better display than Samsung Galaxy A21, because although it has a quite smaller screen, it also counts with more pixels per inch of display and a higher resolution of 1080 x 1920 pixels.
Galaxy A21 features a quite bigger storage capacity to store more games and applications than Samsung Galaxy A7 (2017), and although they both have exactly the same internal memory capacity, the Galaxy A21 also has a SD memory card expansion slot that allows up to 512 GB. The Galaxy A21 counts with just a little better hardware performance than Galaxy A7 (2017). Both have the same RAM memory amount and a Octa-Core CPU.
The Galaxy A21 captures just a bit better pictures and videos than Galaxy A7 (2017), and although they both have the same resolution camera in the back, the same video definition and the same video frame rates, the Galaxy A21 also has a bigger camera aperture. Galaxy A21 features just a little better battery performance than Samsung Galaxy A7 (2017), because it has a 4000mAh battery size.
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