| Global Score | |
| 75.4 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.4 | Android 10 |
| 2015-01-11 | 2020-06-19 |
| 5.94 x 3.00 x 0.25 inches | 6.44 x 2.96 x 0.35 inches |
| 4.97 ounces | 6.77 ounces |
| Blue, Gold and White | Black, Blue, Red and White |
| Metal | -- |
| Scratch-Resistant Glass | -- |
| $ 360.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 401 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 615 8939 chipset | Samsung Exynos 850 chipset |
| 64-bit ARM Cortex-A53 (Quad-Core 1500 MHz + Quad-Core 1000 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 2 GB (800 MHz) RAM | 3 GB RAM |
| Adreno 405 (500 MHz) GPU | Mali-G76 GPU |
| 9.45 | 9.09 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.16 | 9.84 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 13.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.03 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 2600mAh Li-Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 17 hours talk time | -- |
| 4.56 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Galaxy A21s is just a bit better than the Galaxy A7, having a overall score of 77.7 against 75.4. The Galaxy A21s design is noticeably newer than Galaxy A7's, although it's a lot thicker and notably heavier. Both devices in our current comparison have Android OS (operating system), but the Galaxy A21s has 10 version and Galaxy A7 has Android 4.4.4.
Galaxy A7 features a way better looking screen than Galaxy A21s, because although it has a little smaller screen, it also counts with a better 1920 x 1080px resolution and a higher display density. Galaxy A7 features a little better hardware performance than Samsung Galaxy A21s, because although it has 1 GB lesser RAM memory, and they both have 8 CPU cores, the Galaxy A7 also counts with a graphics processor and a 64-bits processor.
The Galaxy A21s counts with a very superior memory capacity for games and applications than Samsung Galaxy A7, because it has a SD card slot that allows up to 512 GB and 32 GB internal storage capacity. The Samsung Galaxy A21s shoots a lot better photos and videos than Samsung Galaxy A7, and although they both have the same 1920x1080 (Full HD) video quality and the same 30 frames per second video frame rate, the Samsung Galaxy A21s also has a back-facing camera with a much better resolution.
Samsung Galaxy A21s features a really longer battery performance than Galaxy A7, because it has a 5000mAh battery capacity.
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