Compare phones
| Global Score | |
| 72.2 | 76.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 4.3, 4.2, 4.1, 4.0.4 | Android 10 |
| 2012-06-04 | 2020-05-20 |
| 5.38 x 2.78 x 0.34 inches | 6.39 x 3.04 x 0.35 inches |
| 4.73 ounces | 7.02 ounces |
| Blue, Red and White | Forest green, Midnight gray and Polar white |
| Polycarbonate | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 585.00 | $ 283.00 |
| Display / Screen | |
| 4.8 inches | 6.5 inches |
| 720 x 1280 pixels (HD) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 306 pixels per inch | 396 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.2 | 8 |
| Performance | |
| Qualcomm Snapdragon S4 Plus MSM8960 chipset | MediaTek Helio G85 chipset |
| Krait (Dual-Core 1500 MHz) processor | Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 2 GB (500 MHz) RAM | 3 GB RAM |
| Adreno 225 (400 MHz) GPU | Mali G52 MC2 GPU |
| 8.46 | 9.09 |
| Storage | |
| 16 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 6.16 | 10.02 |
| Camera | |
| 8.00 MP + 1.90 MP | 48.00 MP + 13.00 MP |
| f/2.60 aperture | f/1.80 aperture |
| 0.33 inches (1/3") sensor | 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 |
| 8.47 | 11 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 2100mAh Li-Ion Battery | 5020mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 199 hours standby time 8 hours talk time | -- |
| 4 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Redmi Note 9 is slightly better than the Galaxy S III AT&T, having a general score of 76.6 against 72.2. The Xiaomi Redmi Note 9 body is much newer, but a little thicker and noticeably heavier than Galaxy S III AT&T. Both of these phones work with Android OS (Operating System), but Xiaomi Redmi Note 9 has a more recent 10 version and Galaxy S III AT&T has Android 4.3 version.
Xiaomi Redmi Note 9 counts with a little better processing power than Galaxy S III AT&T, because although it has doesn't have a graphics processing unit, it also counts with more RAM memory and more cpu cores. The Samsung Galaxy S III AT&T has a bit sharper display than Xiaomi Redmi Note 9, although it has a just a bit inferior pixels quantity per inch in the screen, a really smaller screen and a much lower resolution of 1280 x 720 pixels.
Xiaomi Redmi Note 9 shoots way better videos and photos than Galaxy S III AT&T, and although they both have the same 30 frames per second video frame rate and the same (Full HD) video quality, the Xiaomi Redmi Note 9 also has a way bigger aperture for better images and videos in low-light situations, a way better 48 megapixels resolution camera in the back and a lot larger sensor providing a way higher image quality.
Xiaomi Redmi Note 9 features a much bigger storage capacity for games and applications than Samsung Galaxy S III AT&T, because it has more internal storage and an external memory slot that admits a maximum of 128 GB. Xiaomi Redmi Note 9 counts with a really longer battery duration than Galaxy S III AT&T, because it has 5020mAh of battery capacity instead of 2100mAh.
Despite of being the best phone of the ones in this comparison, the Xiaomi Redmi Note 9 is also very cheap compared to the other devices.
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