Compare phones
| Global Score | |
| 83.3 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-03-16 | 2020-06-29 |
| 5.81 x 2.70 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 5.75 ounces | 6.81 ounces |
| Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray | Black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 158.00 | $ 194.00 |
| Display / Screen | |
| 5.8 inches | 6.5 inches |
| 2960 x 1440 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 568 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.9 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Mediatek Helio P35 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 630 GPU | PowerVR GE8320 GPU |
| 9.54 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.34 | 9.84 |
| Camera | |
| 12.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.50 aperture | f/1.80 aperture |
| 0.39 inches (1/2.55") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.23 | 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 | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy S9 is slightly better than the Samsung Galaxy A21, getting an 83.3 score against 76.1. Galaxy S9 is a way older and just a little thicker cellphone than Samsung Galaxy A21, but Samsung managed to build it lighter anyway. Samsung Galaxy S9 has a lot better looking display than Galaxy A21, because although it has a bit smaller display, it also counts with much more pixels per inch in the screen and a lot higher resolution of 1440 x 2960.
The Galaxy S9 features just a little better processing power than Samsung Galaxy A21, and although they both have a Octa-Core processing unit, the Galaxy S9 also has a larger amount of RAM. The Samsung Galaxy S9 counts with a bigger memory to install applications and games or saving photos and videos than Samsung Galaxy A21, because although it has a slot for an external memory card that supports 112 GB smaller, it also counts with 64 GB internal memory capacity.
Galaxy A21 counts with greater battery duration than Galaxy S9, because it has 4000mAh of battery capacity instead of 3000mAh. The Samsung Galaxy S9 captures a little bit better pictures and videos than Galaxy A21, because although it has a back facing camera with a much worse resolution, it also counts with a much higher 3840x2160 video definition, a larger back-facing camera sensor and a larger aperture.
The Samsung Galaxy S9 not only is the best phones in this comparison, but it's also very cheap compared to the other ones, which makes it a no doubt choice.
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