Xiaomi MI 4i vs. Xiaomi MI Mix 3 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI 4i and Xiaomi MI Mix 3 5G. 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.

Phone Specifications Comparison

Xiaomi MI 4i vs. Xiaomi MI Mix 3 5G Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI 4i Xiaomi MI Mix 3 5G
Product Type Smartphone Smartphone
Form Factor Touch Touch slider
Height 138.1 mm 157.89 mm Xiaomi MI Mix 3 5G has greater height than Xiaomi MI 4i.
Width 69.6 mm 74.69 mm Xiaomi MI Mix 3 5G has greater width than Xiaomi MI 4i.
Depth 7.8 mm 8.46 mm Xiaomi MI 4i is narrower than Xiaomi MI 4i.
Weight 130 g 225 g Xiaomi MI 4i is lighter than Xiaomi MI 4i.
Body Colour Black | Dark grey | White Sapphire blue | Onyx black
Waterproof (Water-resistant) - -
SAR Value 1.29 W/kg 1.577 W/kg (body), 1.557 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 -
SIM Card Qty Dual-SIM Single-SIM
DISPLAY Xiaomi MI 4i Xiaomi MI Mix 3 5G
Display Type LCD display OLED display
Display Technology IPS AMOLED
Screen Size (Display Size) 5" 6.39" Xiaomi MI Mix 3 5G has larger screen size than Xiaomi MI 4i.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2340 x 1080 pixels Xiaomi MI Mix 3 5G 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 3 5G.
Aspect Ratio - 19.5:9
Max Brightness - 600 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 60000:1
HDR - Yes Xiaomi MI Mix 3 5G has HDR.
Display Enhancement Technology - Sunlight mode
Display Features - Always-on display, Reading mode, Colour temperature adjustment, night mode
Display Protection (Screen Protector) Corning Concore Glass -
PROCESSOR Xiaomi MI 4i Xiaomi MI Mix 3 5G
Processor Type (CPU) Qualcomm Snapdragon 615 Qualcomm Snapdragon 855
Clock Speed 1.7 GHz 2.84 GHz Xiaomi MI Mix 3 5G has higher clock speed than Xiaomi MI 4i.
Processor Core Qty 8-core -
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 405 Qualcomm ADRENO 640
MEMORY Xiaomi MI 4i Xiaomi MI Mix 3 5G
RAM 2 GB LPDDR4X SDRAM - 6 GB Xiaomi MI Mix 3 5G has more RAM than Xiaomi MI 4i.
Internal Memory Size (Storage Capacity) 16 GB 128 GB Xiaomi MI Mix 3 5G has more internal memory than Xiaomi MI 4i.
Memory Interface - UFS 2.1
CAMERA Xiaomi MI 4i Xiaomi MI Mix 3 5G
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 3 5G.
Sensor Name - Sony Exmor RS IMX363 sensor
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/1.8 Xiaomi MI Mix 3 5G has better lens aperture than Xiaomi MI 4i.
Lens Construction 5-element -
Pixel Size - 1.4 μm
Optical Image Stabiliser (OIS) - 4-axis OIS (Optical Image Stabilisation) Xiaomi MI Mix 3 5G has optical stabilisation.
Focus Adjustment Automatic Automatic
Special Effects - HDR
HDR Mode Auto HDR mode -
Camera Modes Panorama, manual mode Panorama, Nightscape capture mode, Personalized AI Beautify
Face Recognition (Face ID) Face detection, smile detection Face recognition Both phones have face detection.
Light Source Dual LED flash Flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps
Camera Features (Functions) - AI scene and object detection, Dual Pixel Autofocus technology, AI Dual camera, 4-in-1 Super Pixel, AI scene detection, AI dynamic bokeh, AI studio lighting, AI Super Resolution, low-light enhancement technology, AI special effects
SECOND CAMERA
Sensor Resolution (2nd Camera) - 12 Megapixel
Sensor Name (2nd Camera) - Samsung S5K3M3+
Pixel Size (2nd Camera) - 1 μm
FRONT CAMERA
Number of Front Cameras 1 2
Sensor Resolution (Front) 5 Megapixel 24 Megapixel Xiaomi MI Mix 3 5G has better front camera resolution than Xiaomi MI 4i.
Sensor Name (Front) - Sony Exmor RS IMX576 sensor
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/1.8 -
Lens Element Qty (Front) 5-element -
Pixel Size (Front) - 1.8 μm
Special Effects (Front) - Magic mirror
HDR Mode (Front) - Auto HDR mode
Camera Modes (Front) - Bokeh Mode, AI Beautify, AI makeup
Face Recognition (Face ID) - Face recognition Xiaomi MI Mix 3 5G has face detection.
Camera Features (Front) - AI portrait mode, 4-in-1 Super Pixel technology, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light
SECOND FRONT CAMERA
Sensor Resolution (2nd Front) - 2 Megapixel
Sensor Name (2nd Front) - OC0A10
Pixel Size (2nd Front) - 1.75 μm
BATTERY AND CHARGING Xiaomi MI 4i Xiaomi MI Mix 3 5G
Battery Capacity (Battery Size) 3120 mAh 3800 mAh Xiaomi MI Mix 3 5G has larger battery capacity than Xiaomi MI 4i.
Fast Charging Technology - Qualcomm Quick Charge 4.0+ Xiaomi MI Mix 3 5G has fast charging technology.
Talk Time 2100 minutes -
Run Time Details Talk (WCDMA): up to 2100 min -
Battery Technology Lithium Ion -
CELLULAR Xiaomi MI 4i Xiaomi MI Mix 3 5G
Technology TD-SCDMA / WCDMA (UMTS) / GSM CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA
Mobile Broadband Generation 4G 5G Xiaomi MI Mix 3 5G has more advanced generation mobile network.
Operating System Android 5.0.2 (Lollipop) -
User Interface MIUI V6 -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Xiaomi MI 4i Xiaomi MI Mix 3 5G
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X
3G UMTS Band - Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency - 2100, 1900, 1700, 850, 900
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 20, Band 28, 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 800 DD, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500
5G NR Band - N78
5G NR Frequency - TDD TD 3500
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 3 5G has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi MI 4i Xiaomi MI Mix 3 5G
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, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP
FEATURES Xiaomi MI 4i Xiaomi MI Mix 3 5G
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, gyro sensor, vibration sensor, ultrasonic distance sensor
Security Devices - Face recognition, fingerprint reader
Additional Phone Features MIMO technology, Active noise-cancellation MIMO technology, MU-MIMO technology
OTHERS Xiaomi MI 4i Xiaomi MI Mix 3 5G
Included Accessories Power adapter Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable
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