Compare phones
| Global Score | |
| 76.1 | 85.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-06-29 | 2018-11-15 |
| 6.61 x 3.02 x 0.32 inches | 6.40 x 3.03 x 0.31 inches |
| 6.81 ounces | 6.46 ounces |
| Black | Bubblegum pink, Caviar black and Lemonade blue |
| Plastic and Plastic | Glass and Metal |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 1600 x 720 pixels | 2220 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 392 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| PowerVR GE8320 GPU | Adreno 512 GPU |
| 9.27 | 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 | |
| 16.00 MP + 13.00 MP | 24.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| -- | 27.00mm focal length |
| 0.33 inches (1/3.06") 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 |
| 9.35 | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3800mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.76 |
| 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 Galaxy A9 (2018) is much better than the Samsung Galaxy A21, getting a global score of 85.2 against 76.1. Galaxy A9 (2018) is an older phone than Samsung Galaxy A21, but Samsung managed to build it just a bit thinner and a little bit lighter anyway. Samsung Galaxy A9 (2018) and Galaxy A21 both feature incredibly similar processors, and although the Samsung Galaxy A9 (2018) has 3 GB more RAM memory, they both have a Octa-Core processing unit.
The Samsung Galaxy A9 (2018) counts with a bit better display than Galaxy A21, because although it has a bit smaller screen, it also counts with a better pixels count per inch of display and a lot better resolution of 1080 x 2220. Samsung Galaxy A9 (2018) has a much better camera than Samsung Galaxy A21, because it has a much better (4K) video definition, a back facing camera with a lot better resolution, a larger diafragm aperture for better low-light captures and video and a larger sensor capturing higher quality videos and photos.
Galaxy A9 (2018) counts with a superior storage for apps and games than Galaxy A21, and although they both have a slot for external memory cards that allows a maximum of 512 GB, the Galaxy A9 (2018) also has 128 GB internal storage capacity. Samsung Galaxy A21 counts with just a bit longer battery life than Samsung Galaxy A9 (2018), because it has a 5 percent larger battery size.
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