Compare phones
| Global Score | |
| 79 | 78 |
| Basic Information | |
| Xiaomi | Xiaomi |
| Android 11, 10 | -- |
| 2020-04-07 | 2018-07-27 |
| 6.53 x 3.02 x 0.35 inches | 6.25 x 2.97 x 0.29 inches |
| 7.37 ounces | 5.93 ounces |
| Aurora blue, Glacier white and Interstellar grey | Black, Blue, Gold, Pink and Red |
| Glass (Corning Gorilla Glass 5) | Aluminum |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 249.00 | -- |
| Display / Screen | |
| 6.7 inches | 6 inches |
| 2400 x 1080 pixels | 2160 x 1080 pixels |
| IPS LCD | IPS LCD |
| 393 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 720G SM7125 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Kryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 618 GPU | Adreno 512 GPU |
| 9.27 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 16.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.34 inches (1/2.9") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 11.55 | 9.79 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5020mAh Li - Polymer Battery | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Xiaomi Redmi Note 9S is a little bit better than the Xiaomi Mi A2, having a overall score of 79 against 78. Xiaomi Redmi Note 9S's body is newer, but somewhat thicker and somewhat heavier than the Xiaomi Mi A2. The Xiaomi Mi A2's processing unit is very similar to the Xiaomi Redmi Note 9S one, and although the Xiaomi Mi A2 has a higher amount of RAM, they both have 8 CPU cores.
Xiaomi Mi A2 has a little bit better display than Xiaomi Redmi Note 9S, because although it has a little bit smaller screen and a little lower 1080 x 2160 resolution, it also counts with a little bit higher pixels amount in each inch of screen. The Xiaomi Redmi Note 9S features a bigger memory to store more games and applications than Xiaomi Mi A2, because although it has less internal storage capacity, it also counts with a slot for external memory cards that holds up to 512 GB.
Xiaomi Redmi Note 9S has a superior battery performance than Xiaomi Mi A2, because it has a 67 percent greater battery size. The Xiaomi Redmi Note 9S counts with a better camera than Xiaomi Mi A2, and although they both have the same 3840x2160 video definition, a F1.8 camera aperture and the same 30 frames per second video frame rate, the Xiaomi Redmi Note 9S also has a back-facing camera with way more megapixels and a way bigger back-facing camera sensor capturing much better quality photos.
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