| Hardware and OS | Redmi K40 Game Edition | |
| Operating system | MIUI 12 base on Android 11 OS | |
| Processor | Arm Cortex-A78 working at 3.0GHz | |
| RAM | 8 GB, 12 GB | |
| Internal Storage | 128 GB, 256 GB | |
| Memory Card Slot | No | |
| User Interface | Yes | |
| Display | Redmi K40 Game Edition | other phones |
| Type | S-AMOLED E4 screen | |
| Size | 6.67 inches | |
| Resolution | 1080 x 2400 pixels | |
| Colors | 16M Colors | |
| Pixel Density | 395 ppi | |
| Touchscreen | Yes | |
| Features | DCI-P3 color gamut, HDR10 , 144Hz | |
| Connectivity | Redmi K40 Game Edition | other phones |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 17, 18, 19, 26 | |
| 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 | Redmi K40 Game Edition | other phones |
| Main camera | 64 MP, 8 MP, 2 MP | |
| Features | LED flash, HDR, panorama | |
| Image | 3240p | |
| Selfie camera | 16 MP (wide) | |
| Multimedia | Redmi K40 Game Edition | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | No | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | No | |
| Design | Redmi K40 Game Edition | other phones |
| Dimensions | 8.3mm | |
| Waterproof | No | |
| Weight | 208Grams | |
| Battery | Redmi K40 Game Edition | other phones |
| Capacity | Li-Po 5000 mAh, 67W Fast Flash Charge | |
| Placement | Non-removable | |
| Other | Redmi K40 Game Edition | other phones |
| Sensors | side-mounted fingerprint scanner | |
