| Brand: | Xiaomi |
| Model: | Redmi Note 9 4G |
| Type: | Smartphone |
| Release Date: | 2020 |
| Size: | 6.53 inches, 104.7 cm2 |
| Resolution: | 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density) |
| Technology: | IPS LCD, 400 nits (typ) |
| Brightness: | 400 nits |
| Protection: | Corning Gorilla Glass 3 |
| Main Specs: | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm Auxiliary lens |
| Main Features: | LED flash, HDR, panorama |
| Main Video: | 1080p@30fps |
| Selfie Specs: | 8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm |
| Selfie Video: | 1080p@30fps |
| Capacity: | 6000 mAh |
| Type: | Li-Po |
| Charging: | 18W wired 2.5W reverse wired |
| Fast Charging: | 18W |
| Chipset: | Qualcomm SM6115 Snapdragon 662 (11 nm) |
| Cpu: | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Gpu: | Adreno 610 |
| Ram: | 4GB |
| Storage: | 128GB |
| Expandable: | microSDXC (dedicated slot) |
| Os: | Android 10, upgradable to Android 12, MIUI 14 |
| Dimensions: | 162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
| Weight: | 198 g (6.98 oz) |
| Build: | Water-repellent coating |
| Sim: | Nano-SIM + Nano-SIM |
| Wifi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Bluetooth: | 4.2, A2DP |
| Nfc: | No |
| Usb: | USB Type-C 2.0, OTG |
| Headphone Jack: | Yes |
| Network: | GSM / CDMA / HSPA / LTE |
| Sensors: | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Colors: | Gray, Green, Blue, Orange |
| Usd: | ~140 USD |
