Compare phones
| Global Score | |
| 77.7 | 90.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 11 |
| 2020-06-19 | 2021-08-11 |
| 6.44 x 2.96 x 0.35 inches | 6.23 x 5.04 x 0.25 inches |
| 6.77 ounces | 9.56 ounces |
| Black, Blue, Red and White | Phantom Black, Phantom Green and Phantom Silver |
| -- | Aluminum and Glass |
| Display / Screen | |
| 6.5 inches | 7.6 inches |
| 1600 x 720 pixels | 2208 x 1768 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 372 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 12 GB RAM |
| Mali-G76 GPU | Adreno 660 GPU |
| 9.09 | 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 | |
| 48.00 MP + 13.00 MP | 12.00 MP + 4.00 MP |
| f/2.00 aperture | f/2.20 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | -- |
| 10.78 | 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 6.24 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Galaxy Z Fold 3 is better than the Galaxy A21s, getting a 90.6 score against 77.7. Both devices in this review have Android OS, but the Galaxy Z Fold 3 has a newer 11 version while Galaxy A21s has Android 10 version. Galaxy Z Fold 3's construction is newer and noticeably thinner, but heavier than Galaxy A21s.
The Samsung Galaxy Z Fold 3 features a brighter display than Galaxy A21s, because it has a better pixel quantity per inch in the display, a much higher resolution of 1768 x 2208 and a bigger screen. The Samsung Galaxy Z Fold 3 features a bit better performance than Galaxy A21s, and although they both have 8 processing cores, the Samsung Galaxy Z Fold 3 also has 9 GB more RAM.
The Samsung Galaxy A21s features a very superior camera than Galaxy Z Fold 3, because it has a larger aperture for better low light photos and a way higher resolution back facing camera. The Galaxy Z Fold 3 has a lot bigger memory capacity to install games and applications than Galaxy A21s, because although it has no SD memory card expansion slot, it also counts with 256 GB internal memory.
The Galaxy A21s features a little better battery duration than Samsung Galaxy Z Fold 3, because it has a 14% bigger battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.