Compare phones
| Global Score | |
| 77.7 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow | Android 10 |
| 2016-06-01 | 2020-06-29 |
| 6.17 x 3.04 x 0.27 inches | 6.61 x 3.02 x 0.32 inches |
| 5.96 ounces | 6.81 ounces |
| Gold, Gray and Pink | Black |
| Metal | Plastic and Plastic |
| -- | $ 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 | |
| Qualcomm Snapdragon 625 8953 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 506 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 9.84 |
| Camera | |
| 16.00 MP + 8.00 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 |
| 9.13 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy C7 has a global score of 77.7, which is a little bit better than the Galaxy A21's global score of 76.1. Both devices in this comparison review use Android OS, but the Galaxy C7 has 8.0 Oreo version and Galaxy A21 has Android 10, offering some nice extra features and performance optimizations. The Galaxy C7 design is somewhat thinner and lighter than the Galaxy A21, although it was released many years before.
Samsung Galaxy A21 features a little better performance than Galaxy C7, although it has a smaller amount of RAM memory, they both have a Octa-Core processing unit. The Galaxy C7 counts with a little sharper screen than Galaxy A21, because although it has a bit smaller display, it also counts with more pixels per inch of screen and a better resolution of 1080 x 1920.
The Galaxy C7 has a bit more storage capacity to install games and applications than Galaxy A21, because although it has an external memory card slot that allows 384 GB smaller, it also counts with 64 GB internal storage. Samsung Galaxy A21 captures slightly better pictures and videos than Samsung Galaxy C7, and although they both have the same 1920x1080 (Full HD) video definition, a same resolution back facing camera and the same 30 frames per second video frame rates, the Samsung Galaxy A21 also has a larger diafragm aperture to take better low-light captures.
The Samsung Galaxy A21 has better battery life than Galaxy C7, because it has 4000mAh of battery capacity against 3300mAh.
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