Xiaomi 12X 256GB
| Availability | |
| Officially announced | Mar 15, 2022 |
| Battery | |
| Charge speed | Wired: 67.0W |
| Charging | Fast charging |
| Camera | |
| Flash | Dual LED |
| Front | 32 MP | Video capture: 1080p |
| Main camera | 50 MP (OIS, PDAF) | Aperture size: F1.9 | Pixel size: 1.0 μm |
| Rear | Triple camera |
| Second camera | 13 MP (Ultra-wide) | Aperture size: F2.4 |
| Third camera | 5 MP (Telephoto, Macro) | Focal Length: 50 mm |
| Video recording | 8K UHD (24 fps), 4K UHD (30 fps), 1080p (960 fps) | EIS |
| Cellular | |
| 3G Bands | 1, 2, 4, 5, 6, 8 |
| 4G (FDD) Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66 |
| 4G (TDD) Bands | 38, 39, 40, 41, 42, 48 |
| 5G Bands | n1, n3, n5, n8, n20, n28, n38, n40, n41, n66, n77, SA, NSA |
| Data Speed | LTE-A, HSDPA+ (4G) 42.2 Mbit/s |
| Dual SIM | Yes |
| SIM type | Dual Nano SIM |
| Connectivity & Features | |
| Bluetooth | 5.1 |
| Location | GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning |
| Other | NFC, Infrared |
| Sensors | Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor |
| USB | Type-C, USB 2.0 |
| WLAN | a,b,g,n,ac,Wi-Fi 6 | Wi-Fi Direct, Hotspot | 802.11 a, b, g, n, ac, ax |
| Design | |
| Biometrics | Fingerprint (touch) |
| Colors | Grey, Purple, Blue |
| Dimensions | 6.01 x 2.75 x 0.32 inches | 152.7 x 69.9 x 8.16 mm |
| Keys | Right: Volume control, Lock/Unlock key |
| Materials | Back: Glass | Frame: Aluminum |
| Weight | 6.21 oz / 176.0 g |
| Display | |
| Protection | Corning Gorilla Glass Victus |
| Resolution | 2400x1080px, 20:9 ratio, 419 PPI |
| Size | 6.3-inch, 89.30% screen-to-body |
| Type | 4500 mAh |
| Hardware | |
| GPU | Adreno 650 |
| Memory | 8GB (LPDDR5)/128GB (UFS 3.1) | 8GB/256GB |
| OS | Android (11) |
| Processor | Octa-core | 1x3.20GHz Kryo 585 | 3x2.42GHz Kryo 585 | 4x1.80GHz Kryo 585 |
| Storage expansion | not expandable |
| System chip | Snapdragon 870 SM8250-AC (7 nm) |
| Multimedia | |
| Additional microphone(s) | Noise cancellation |
| Headphones | No 3.5mm jack |
| Screen mirroring | Wireless screen share |
| Speakers | Earpiece, Multiple speakers |