Compare phones
| Global Score | |
| 74.5 | 76.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10 |
| 2021-01-04 | 2020-05-20 |
| 6.46 x 2.99 x 0.36 inches | 6.39 x 3.04 x 0.35 inches |
| 6.91 ounces | 7.02 ounces |
| Black, Blue and White | Forest green, Midnight gray and Polar white |
| Plastic and Plastic | Plastic |
| -- | Scratch-Resistant Glass |
| $ 170.00 | $ 283.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| IPS LCD | IPS LCD |
| 270 pixels per inch | 396 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Qualcomm Snapdragon 450 SDM450 chipset | MediaTek Helio G85 chipset |
| Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 506 GPU | Mali G52 MC2 GPU |
| 8.91 | 9.09 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 11.12 | 10.02 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 8.8 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 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 |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5020mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Redmi Note 9 has a global score of 76.6, which is just a bit better than Galaxy A02s's global score of 74.5. Even though the Xiaomi Redmi Note 9 and the Galaxy A02s were released only a couple months apart, the Xiaomi Redmi Note 9 design is just a little bit thinner but also a little bit heavier. Both of these phones come with Android operating system, but the Xiaomi Redmi Note 9 has older 10 version and Galaxy A02s has Android 11.
Xiaomi Redmi Note 9 counts with a better looking screen than Galaxy A02s, and although they both have a screen with the same size, the Xiaomi Redmi Note 9 also has more pixels per inch of display and a way better 1080 x 2340px resolution. The Samsung Galaxy A02s counts with a quite bigger storage for games and applications than Xiaomi Redmi Note 9, because although it has less internal storage, it also counts with a SD memory slot that admits a maximum of 1 TB.
Xiaomi Redmi Note 9 has just a little better processing power than Galaxy A02s. Both have 3 GB of RAM and a Octa-Core processor. Xiaomi Redmi Note 9 counts with a lot better camera than Samsung Galaxy A02s, and although they both have the same video quality and the same 30 frames per second video frame rate, the Xiaomi Redmi Note 9 also has a lot better resolution back-facing camera and a larger aperture for better low light photography.
Xiaomi Redmi Note 9's battery duration is just as good as Galaxy A02s's battery performance, although the Xiaomi Redmi Note 9 also has 5020mAh of battery capacity instead of 5000mAh.
Although Xiaomi Redmi Note 9 is a better device, it costs a lot more money than Samsung Galaxy A02s, and it doesn't have such a good relation between it's price and quality as the Samsung Galaxy A02s. So if you want that extra features and specs, you can buy Xiaomi Redmi Note 9, otherwise you can save a couple dollars and get the Samsung Galaxy A02s, letting go a couple specifications.
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