| Local Name | Redmi Note 8 2021 |
| Technology | GSM / HSPA / LTE |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40 |
| 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 |
| Announced | 2021, May 25 |
| Status | Available. Released 2021, May 27 |
| Dimensions | 158.3 x 75.3 x 8.4 mm (6.23 x 2.96 x 0.33 in) |
| Weight | 190 g (6.70 oz) |
| Build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Li-Po 4000 mAh, non-removable |
| Screen Size | 6.3 inches, 97.4 cm2 (~81.7% screen-to-body ratio) |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) |
| Protection | Corning Gorilla Glass 5 |
| OS | Android 11, MIUI 12.5 |
| Chipset | MediaTek Helio G85 (12nm) |
| CPU | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) |
| GPU | Mali-G52 MC2 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM | eMMC 5.1 |
| Camera Features | HDR, panorama |
| Video | 1080p@30fps |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 5.2, A2DP, LE |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC | No |
| Infrared Port | Yes |
| Radio | FM radio |
| USB | USB Type-C 2.0, USB On-The-Go |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Colors | Neptune Blue, Moonlight White, Space Black |
