Compare phones
| Global Score | |
| 75.3 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo, 7.1 Nougat | Android 10 |
| -- | 2020-06-19 |
| 5.97 x 2.95 x 0.31 inches | 6.44 x 2.96 x 0.35 inches |
| 6.00 ounces | 6.77 ounces |
| Black, Gold and Rose gold | Black, Blue, Red and White |
| Metal | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | TFT |
| 401 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 7.2 |
| Performance | |
| Samsung Exynos 7 Octa 7870 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 |
| 3 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 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 9.84 |
| Camera | |
| 13.00 MP + 13.00 MP | 48.00 MP + 13.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 27.00mm 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 (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy A21s is slightly better than Galaxy J7 Prime 2, with a general score of 77.7 against 75.3. Both of these devices include Android operating system, but Galaxy A21s has the older 10 version and Galaxy J7 Prime 2 has Android 9.0 Pie. Galaxy A21s's body is thicker and somewhat heavier than Galaxy J7 Prime 2.
Galaxy A21s features a bit better processor than Samsung Galaxy J7 Prime 2. Both have a Octa-Core processing unit and the same RAM memory amount. The Samsung Galaxy J7 Prime 2 counts with a little bit better looking screen than Galaxy A21s, because although it has a bit smaller screen, it also counts with a higher resolution of 1080 x 1920 pixels and a higher screen density.
The Galaxy A21s has a bigger memory capacity to install games and applications than Galaxy J7 Prime 2, and although they both have exactly the same 32 GB internal storage, the Galaxy A21s also has a SD card slot that admits a maximum of 512 GB. Samsung Galaxy A21s has a way better battery lifetime than Samsung Galaxy J7 Prime 2, because it has 5000mAh of battery capacity.
The Samsung Galaxy A21s features a superior camera than Samsung Galaxy J7 Prime 2, because although it has a tinier aperture which is worse for low-light photos and videos, and they both have the same 30 fps video frame rate and the same (Full HD) video resolution, the Samsung Galaxy A21s also counts with a lot better 48 MP resolution back-facing camera and a way larger back camera sensor.
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