In depth comparison and review of Xiaomi MI 4i and Xiaomi MI Mix 2S. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 150.86 mm | Xiaomi MI Mix 2S has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 74.9 mm | Xiaomi MI Mix 2S has greater width than Xiaomi MI 4i. |
| Depth | 7.8 mm | 8.1 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 189 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Black | White | |
| Body Material | - | Ceramic | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.29 W/kg | 1.593 W/kg (body), 0.542 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IPS | |
| Screen Size (Display Size) | 5" | 5.99" | Xiaomi MI Mix 2S has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2160 x 1080 pixels | Xiaomi MI Mix 2S has better screen resolution than Xiaomi MI 4i. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 441 ppi | 403 ppi | Xiaomi MI 4i has better pixel density than Xiaomi MI Mix 2S. |
| Aspect Ratio | - | 18:9 | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| HDR | - | Yes | Xiaomi MI Mix 2S has HDR. |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | - | Night Display, Eye protection mode, Colour temperature adjustment | |
| Display Protection (Screen Protector) | Corning Concore Glass | - |
| PROCESSOR | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Clock Speed | 1.7 GHz | 2.8 GHz | Xiaomi MI Mix 2S has higher clock speed than Xiaomi MI 4i. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 630 |
| MEMORY | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 6 GB | Xiaomi MI Mix 2S has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Xiaomi MI Mix 2S has more internal memory than Xiaomi MI 4i. |
| CAMERA | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Xiaomi MI 4i has better camera resolution than Xiaomi MI Mix 2S. |
| Sensor Name | - | Sony Exmor RS IMX363 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.8 | Xiaomi MI Mix 2S has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | - | |
| Optical Image Stabiliser (OIS) | - | 4-axis OIS (Optical Image Stabilisation) | Xiaomi MI Mix 2S has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | Burst mode, Panorama, AI Beautify, Portrait mode with background blurring | |
| Face Recognition (Face ID) | Face detection, smile detection | Face recognition | Both phones have face detection. |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | |
| Camera Features (Functions) | - | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI dynamic bokeh, AI Super Resolution, low-light enhancement technology |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | - | |
| Lens Element Qty (Front) | 5-element | - | |
| Special Effects (Front) | - | Mirror, HDR | |
| Camera Modes (Front) | - | AI Beautify | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI Mix 2S has face detection. |
| Camera Features (Front) | - | Real-time AI bokeh |
| BATTERY AND CHARGING | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 3400 mAh | Xiaomi MI Mix 2S has larger battery capacity than Xiaomi MI 4i. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 3.0 | Xiaomi MI Mix 2S has fast charging technology. |
| Wireless Charging | - | Yes | Xiaomi MI Mix 2S can be charged wirelessly. |
| Wireless Charging Standards | - | Qi | |
| Talk Time | 2100 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 2100 min | - | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0.2 (Lollipop) | - | |
| User Interface | MIUI V6 | - | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | |
| 3G UMTS Band | - | Band 1, Band 2, Band 3, Band 5, Band 6, Band 8, Band 9, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1800, 850, 800, 900, 1700, 800 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 27, Band 28, Band 29, Band 30, Band 34, Band 38, Band 39, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 800 SMR, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP, HID | - | |
| NFC | - | Yes | Xiaomi MI Mix 2S has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP |
| FEATURES | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, ambient light sensor, digital compass, barometer, gyro sensor, hall sensor, vibration sensor, ultrasonic distance sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | MIMO technology, MU-MIMO technology |
| OTHERS | Xiaomi MI 4i | Xiaomi MI Mix 2S |
|---|
| Included Accessories | Power adapter | Headset, protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable |
|---|
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