| Hardware and OS | Xiaomi Redmi K40 Pro Plus | |
| Operating system | Android 11, MIUI 12 | |
| Processor | Octa-core (1x2.84 GHz Kryo 680, 3x2.42 GHz Kryo 680, 4x1.80 GHz Kryo 680) | |
| GPU | Adreno 660 | |
| RAM | 12 GB | |
| Internal Storage | 256 GB | |
| Memory Card Slot | No | |
| User Interface | Yes | |
| Display | Xiaomi Redmi K40 Pro Plus | other phones |
| Type | Super AMOLED | |
| Size | 6.67 inches | |
| Resolution | 1080 x 2400 pixels | |
| Colors | 16M Colors | |
| Pixel Density | 395 ppi | |
| Touchscreen | Capacitive touchscreen | |
| Protection | Corning Gorilla Glass 5 | |
| Features | Capacitive Touchscreen, Multi-touch | |
| Connectivity | Xiaomi Redmi K40 Pro Plus | other phones |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 | |
| 5G Network | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot | |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC | |
| NFC | Yes | |
| USB | USB Type-C 2.0, USB On-The-Go | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G | |
| SIM | Nano SIM | |
| Dual SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Wireless Charging | No | |
| Camera | Xiaomi Redmi K40 Pro Plus | other phones |
| Main camera | 108 MP (wide), 8 MP (ultrawide), 5 MP (macro) | |
| Features | LED flash, HDR, panorama | |
| Image | 3240p | |
| Selfie camera | 20 (wide) | |
| Multimedia | Xiaomi Redmi K40 Pro Plus | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | No | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | No | |
| Design | Xiaomi Redmi K40 Pro Plus | other phones |
| Dimensions | 163.7 x 76.4 x 7.8 mm | |
| Waterproof | IP53, dust and splash protection | |
| Weight | 196 g | |
| Battery | Xiaomi Redmi K40 Pro Plus | other phones |
| Capacity | Li-Po 4520 mAh, Fast charging 33W, 100% in 52 min (advertised), Power Delivery 3.0, Quick Charge 3 | |
| Placement | Non-removable | |
| Other | Xiaomi Redmi K40 Pro Plus | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer, | |
