| Hardware and OS | Xiaomi Mi Mix 3 5G | |
| Operating system | Android 9.0 (Pie); MIUI 10 | |
| Processor | Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485) | |
| Chipset | Qualcomm SDM855 Snapdragon 855 (7 nm) | |
| GPU | Adreno 640 | |
| Internal memory | 64/128 GB, 6 GB RAM | |
| External memory | No | |
| Display | Xiaomi Mi Mix 3 5G | other phones |
| Type | Super AMOLED | |
| Size | 6.39" inc | |
| Resolution | 1080 x 2340 px | |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 85.0% | |
| Display area | 100.2 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 403 PPI | |
| Colors | 16M | |
| Other | HDR | |
| Connectivity | Xiaomi Mi Mix 3 5G | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| 5G Network | 5G NSA / Sub6 / mmWave; N78 | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | |
| Network | GSM / CDMA / HSPA / EVDO / LTE / 5G | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE, aptX HD | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS | |
| NFC | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat18 1200/150 Mbps; 5G (2 Gbps DL) | |
| USB | Type-C 1.0 reversible connector | |
| Camera | Xiaomi Mi Mix 3 5G | other phones |
| Main camera | 12 MP, Dual | |
| Specs | 12 MP (wide), f/1.8, 1/2.55', 1.4µm, Dual Pixel PDAF, 4-axis OIS
-12 MP (telephoto), 1/3.4', 1.0µm | |
| Features | LED flash, HDR, panorama | |
| Video | 2160p@30/60fps, 1080p@30/60/240fps, 1080p@960fps | |
| Selfie camera | 24 MP, Dual | |
| Multimedia | Xiaomi Mi Mix 3 5G | other phones |
| 3.5 mm Jack | No | |
| Radio | No | |
| Design | Xiaomi Mi Mix 3 5G | other phones |
| Colors | Sapphire Blue, Onyx Black | |
| Body build | Front glass, aluminum frame (7000 series), ceramic back | |
| Dimensions | 157.9 x 74.7 x 8.5 mm | |
| Weight | 225 g | |
| Battery | Xiaomi Mi Mix 3 5G | other phones |
| Battery capacity | 3800 mAh, Non-removable Li-Po | |
| Other | Xiaomi Mi Mix 3 5G | other phones |
| Release date | 2019, February | |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | |
