Redmi Note 9 4G vs Xiaomi Mi 9
| Type | Touch | Touch |
| Dimensions | 162.30 x 77.28 x 9.60 mm | 157.50 x 74.67 x 7.61 mm |
| Weight | 198.00 g | 173.00 g |
| Display size | 6.53" | 6.39" |
| Display | Color / LTPS TFT 16M colors 60 Hz 1080 x 2340 px (6.53") 395 ppi | Color / AMOLED 16M colors 1080 x 2340 px (6.39") 403 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| Corning Gorilla Glass Buy screen protector
|
| Additional display | ||
| Protection of the secondary display | ||
| Standard battery | Li-Po 6000 mAhBuy powerbank
| Li-Po 3300 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 3.0 | Quick Charge 4.0+ |
| Wireless battery charging | Qi | |
| Internal memory | 128 GB, 256 GB | 128 GB, 64 GB |
| RAM memory | 4 GB, 6 GB, 8 GB | 6 GB, 8 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 512 GBBuy memory card | |
| Operating system | Android 10 | Android 9.0 Pie |
| Interface | MIUI 12 | MIUI 10 |
| Processor | Qualcomm Snapdragon 662 SM6115 | Qualcomm Snapdragon 855 |
| Processor clock | 2000 MHz | 2840 MHz |
| GPU | Adreno 610 | Adreno 640 |
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | ||
| Announced | 4Q 2020 | 1Q 2019 |
| Other names | M2010J19SC; Xiaomi Redmi Note 9 4G | Mi9; M1902F1A; M1902F1T |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2100, 1800, 900, 850 TDD LTE: 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 700 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| Standard 5G | ||
| CDMA | 850 CDMA2000 1xEV-DO | |
| Standard TD-SCDMA | 1900 2000 | 1900 2000 |
| UMA |

