Compare phones
| Global Score | |
| 76.1 | 90.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11 |
| 2020-06-29 | 2021-08-11 |
| 6.61 x 3.02 x 0.32 inches | 6.23 x 5.04 x 0.25 inches |
| 6.81 ounces | 9.56 ounces |
| Black | Phantom Black, Phantom Green and Phantom Silver |
| Plastic and Plastic | Aluminum and Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 7.6 inches |
| 1600 x 720 pixels | 2208 x 1768 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 372 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 12 GB RAM |
| PowerVR GE8320 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 13.3 |
| Camera | |
| 16.00 MP + 13.00 MP | 12.00 MP + 4.00 MP |
| f/1.80 aperture | f/2.20 aperture |
| 0.33 inches (1/3.06") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | -- |
| 9.35 | 7.7 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.24 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy Z Fold 3 is better than Galaxy A21, with a general score of 90.6 against 76.1. Both of these phones have Android OS (operating system), but the Galaxy Z Fold 3 has the newer 11 version while Galaxy A21 has Android 10, providing some extra features. The Galaxy Z Fold 3 body is newer and thinner than Galaxy A21's, but it's also incredibly heavier.
Samsung Galaxy Z Fold 3 features a little faster processor than Galaxy A21, and although they both have 8 processing cores, the Samsung Galaxy Z Fold 3 also has more RAM memory. Galaxy Z Fold 3 features a little sharper screen than Samsung Galaxy A21, because it has a greater pixel amount in each inch in the display, a bigger screen and a way higher resolution of 1768 x 2208.
The Galaxy Z Fold 3 counts with a superior storage for apps and games than Samsung Galaxy A21, because although it has no SD card slot, it also counts with 224 GB more internal memory. Galaxy A21 features a very superior camera than Galaxy Z Fold 3, because it has a way better 16 mega-pixels resolution camera in the back and a larger diafragm aperture for better low light photography and video.
Samsung Galaxy Z Fold 3 features a bit longer battery life than Galaxy A21, because it has 4400mAh of battery capacity instead of 4000mAh.
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