Compare phones
| Global Score | |
| 85.2 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-11-15 | 2020-06-29 |
| 6.40 x 3.03 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 6.46 ounces | 6.81 ounces |
| Bubblegum pink, Caviar black and Lemonade blue | Black |
| Glass and Metal | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2220 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 392 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 512 GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| 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 | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | -- |
| 0.36 inches (1/2.8") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.45 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 3800mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.76 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy A9 (2018) is better than Galaxy A21, having a general score of 85.2 against 76.1. Despite of the fact that the Samsung Galaxy A9 (2018) is older than Galaxy A21, it's body is a little bit thinner and a bit lighter. Galaxy A21 and Samsung Galaxy A9 (2018) feature incredibly similar processing units, and although the Galaxy A21 has a smaller amount of RAM memory, they both have a Octa-Core CPU.
The Galaxy A9 (2018) features a little bit better looking screen than Samsung Galaxy A21, because although it has a little bit smaller display, it also counts with a lot higher resolution of 1080 x 2220 pixels and a higher pixel density. Galaxy A9 (2018) takes much clearer photos and videos than Galaxy A21, because it has a much higher resolution camera in the back, a lot better video resolution, a bigger camera aperture to capture better images in poorly lited environments and a larger sensor capturing more light and vivid colors.
Samsung Galaxy A9 (2018) counts with a much bigger storage for games and applications than Samsung Galaxy A21, and although they both have a slot for an SD memory card that allows a maximum of 512 GB, the Samsung Galaxy A9 (2018) also has more internal storage capacity. Samsung Galaxy A21 has a bit better battery duration than Samsung Galaxy A9 (2018), because it has a 5% bigger battery size.
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