| Local Name | Redmi Note 9T |
| Technology | GSM / HSPA / LTE / 5G |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42 |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Announced | 2021, January 08 |
| Status | Available. Released 2021, January 18 |
| Dimensions | 161.2 x 77.3 x 9.1 mm (6.35 x 3.04 x 0.36 in) |
| Weight | 199 g (7.02 oz) |
| Build | Glass front (Gorilla Glass 5), plastic back, plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Body | Water-repellent coating |
| Display Type | Li-Po 5000 mAh, non-removable |
| Screen Size | 6.53 inches, 104.7 cm2 (~84.0% screen-to-body ratio) |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density) |
| Protection | Corning Gorilla Glass 5 |
| OS | Android 10, MIUI 12 |
| Chipset | MediaTek MT6853 Dimensity 800U 5G (7 nm) |
| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| GPU | Mali-G57 MC3 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 64GB 4GB RAM, 128GB 4GB RAM | UFS 2.1 - 64GB UFS 2.2 - 128GB |
| Camera Features | LED flash, HDR, panorama |
| Video | 1080p@30fps |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| Sound | 24-bit/192kHz audio |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 5.1, A2DP, LE |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC | Yes |
| Infrared Port | Yes |
| Radio | FM radio, recording |
| USB | USB Type-C 2.0 |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Nightfall Black, Daybreak Purple |
