Compare phones
| Global Score | |
| 72.7 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 10 |
| 2018-06-29 | 2020-06-19 |
| 6.03 x 3.00 x 0.34 inches | 6.44 x 2.96 x 0.35 inches |
| 6.38 ounces | 6.77 ounces |
| 16 777 216 | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 1600 x 720 pixels |
| TFT | TFT |
| 267 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 7.2 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Samsung Exynos 850 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 2 GB RAM | 3 GB RAM |
| Mali-T830 MP1 GPU | Mali-G76 GPU |
| 8.73 | 9.09 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.44 | 9.84 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.13 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
The Galaxy A21s has a general score of 77.7, which is slightly better than Galaxy J7 Refine's score of 72.7. Both devices in our current comparison use Android operating system, but the Galaxy A21s has an older 10 version and Galaxy J7 Refine has Android 8.0 Oreo version. The Galaxy A21s design is newer, but just a little thicker and a little bit heavier than the Galaxy J7 Refine.
Galaxy A21s features a little more vivid display than Galaxy J7 Refine, because it has a bit greater pixel quantity per display inch, a little higher 720 x 1600 resolution and a bigger display. The Samsung Galaxy A21s has just a bit better performance than Galaxy J7 Refine, and although they both have 8 processing cores, the Samsung Galaxy A21s also has a higher amount of RAM memory.
Samsung Galaxy A21s shoots much better pictures and videos than Samsung Galaxy J7 Refine, because although it has a smaller camera aperture which is not recommended for low-light images, and they both have the same video definition and the same 30 fps video frame rates, the Samsung Galaxy A21s also counts with a much bigger back-facing camera sensor capturing much better quality photographs and a way more mega pixels back-facing camera.
Galaxy A21s has just a bit bigger storage for applications and games than Samsung Galaxy J7 Refine, and although they both have equal 32 GB internal storage, the Galaxy A21s also has a slot for an external memory card that admits up to 512 GB. The Samsung Galaxy A21s counts with a very superior battery duration than Samsung Galaxy J7 Refine, because it has a 5000mAh battery capacity instead of 3300mAh.
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