Compare phones
| Global Score | |
| 71.8 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2017-07-04 | 2020-06-29 |
| 5.76 x 2.81 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 5.64 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Metal | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 5.2 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 282 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 2 GB RAM | 3 GB RAM |
| Mali-T830 MP2 GPU | PowerVR GE8320 GPU |
| 8.73 | 9.27 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 7.48 | 9.84 |
| Camera | |
| 13.00 MP + 13.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 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 |
| 9.02 | 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 | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | 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 A21 has a score of 76.1, which is a little bit better than the Galaxy J5 (2017)'s 71.8 global score. The Galaxy A21 design is noticeably newer than Galaxy J5 (2017)'s, although it's a bit thicker and somewhat heavier. Galaxy A21 has a bit better screen than Galaxy J5 (2017), because although it has a just a bit less pixels per inch in the display, it also counts with a bigger screen and a bit higher resolution of 720 x 1600px.
Samsung Galaxy A21 features a much bigger storage capacity for games and applications than Galaxy J5 (2017), because it has a slot for external memory cards that supports a maximum of 512 GB and more internal memory. The Galaxy A21 features just a bit better performance than Samsung Galaxy J5 (2017), and although they both have a Octa-Core processing unit, the Galaxy A21 also has a greater amount of RAM.
The Galaxy A21 has a slightly better camera than Samsung Galaxy J5 (2017), because although it has a tinier diafragm aperture, and they both have the same video quality and the same 30 frames per second video frame rates, the Galaxy A21 also counts with a back camera with a better resolution. Galaxy A21 features greater battery performance than Galaxy J5 (2017), because it has a 33% larger battery capacity.
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