| Brand: | Xiaomi |
| Model: | Redmi K40 Pro |
| Type: | Smartphone |
| Release Date: | 2021, February 25 |
| Size: | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) |
| Resolution: | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) |
| Technology: | Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) |
| Protection: | Corning Gorilla Glass 5 |
| Main Features: | LED flash, HDR, panorama |
| Main Video: | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ |
| Selfie Specs: | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm |
| Selfie Features: | HDR |
| Selfie Video: | 1080p@30fps, 720p@120fps |
| Capacity: | Li-Po 4520 mAh, non-removable |
| Type: | Li-Po |
| Chipset: | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| Ram: | 6GB |
| Storage: | 128GB |
| Expandable: | No |
| Dimensions: | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) |
| Weight: | 196 g (6.91 oz) |
| Wifi: | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth: | 5.2, A2DP, LE |
| Nfc: | Yes |
| Usb: | USB Type-C 2.0, USB On-The-Go |
| Headphone Jack: | No |
| Network: | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| Sensors: | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer |
| Colors: | Black, White, Aurora |