Compare phones
| Global Score | |
| 77.7 | 85.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-06-19 | 2018-11-15 |
| 6.44 x 2.96 x 0.35 inches | 6.40 x 3.03 x 0.31 inches |
| 6.77 ounces | 6.46 ounces |
| Black, Blue, Red and White | Bubblegum pink, Caviar black and Lemonade blue |
| -- | Glass and Metal |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 1600 x 720 pixels | 2220 x 1080 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 512 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.84 | 14.14 |
| Camera | |
| 48.00 MP + 13.00 MP | 24.00 MP + 24.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.78 | 10.45 |
| 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, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3800mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.76 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy A9 (2018) is slightly better than the Samsung Galaxy A21s, having a overall score of 85.2 against 77.7. Samsung Galaxy A9 (2018)'s construction is thinner and just a bit lighter than Samsung Galaxy A21s, even though it was released about a year before. Galaxy A9 (2018) features a brighter screen than Galaxy A21s, because although it has a bit smaller display, it also counts with a greater pixel amount per screen inch and a lot better resolution of 1080 x 2220 pixels.
The Samsung Galaxy A9 (2018) features a little faster processing unit than Galaxy A21s, and although they both have a Octa-Core processing unit, the Samsung Galaxy A9 (2018) also has a larger amount of RAM. Galaxy A9 (2018) has a very superior memory to install games and applications than Samsung Galaxy A21s, and although they both have an external memory card slot that allows up to 512 GB, the Galaxy A9 (2018) also has 128 GB internal storage.
The Galaxy A21s takes clearer photos and videos than Galaxy A9 (2018), because although it has a tinier camera aperture which is not favorable for taking photos or videos in low-light situations, and they both have the same 1920x1080 (Full HD) video definition and the same 30 frames per second video frame rates, the Galaxy A21s also counts with a way more mega pixels camera and a way bigger back camera sensor taking more light and vivid colors.
Galaxy A21s features better battery performance than Galaxy A9 (2018), because it has 5000mAh of battery capacity against 3800mAh.
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