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