Compare phones
| Global Score | |
| 85.2 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-11-15 | 2020-06-19 |
| 6.40 x 3.03 x 0.31 inches | 6.44 x 2.96 x 0.35 inches |
| 6.46 ounces | 6.77 ounces |
| Bubblegum pink, Caviar black and Lemonade blue | Black, Blue, Red and White |
| Glass and Metal | -- |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2220 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 392 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung Exynos 850 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 512 GPU | Mali-G76 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 24.00 MP + 24.00 MP | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.36 inches (1/2.8") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.45 | 10.78 |
| 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 | |
| 3800mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy A9 (2018) has a general score of 85.2, which is a bit better than the Galaxy A21s's general score of 77.7. Even though the Galaxy A9 (2018) is older than Galaxy A21s, it's body is just a bit lighter and somewhat thinner. Samsung Galaxy A9 (2018) has a sharper screen than Galaxy A21s, because although it has a little bit smaller screen, it also counts with a greater display density and a much higher 1080 x 2220 pixels resolution.
Galaxy A9 (2018) has much more storage for applications and games than Samsung Galaxy A21s, and although they both have a slot for an SD memory card that allows up to 512 GB, the Galaxy A9 (2018) also has 96 GB more internal memory. The Galaxy A9 (2018) counts with just a little better performance than Galaxy A21s, and although they both have 8 processing cores, the Galaxy A9 (2018) also has a higher amount of RAM.
The Galaxy A21s features longer battery performance than Galaxy A9 (2018), because it has 5000mAh of battery capacity instead of 3800mAh. The Galaxy A21s features a little bit better camera than Galaxy A9 (2018), because although it has a smaller aperture which is not nice for low light images and video, and they both have the same 30 frames per second video frame rate and the same video definition, the Galaxy A21s also counts with a way bigger back-facing camera sensor providing a lot higher image quality and a camera with much more mega pixels.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.