Buy Xiaomi Mix Fold 4 5G Dual SIM, 16GB/512GB - Black (Chinese Version)

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Overview:

• Leica Optics Quad Camera: 23mm main, 47mm portrait, 115mm telephoto, 15mm ultra-wide.
• Xiaomi Keel Hinge 2.0: Ultra-micro, durable, lightweight carbon fiber structure.
• High-Brightness Flagship Screens: 6.56" outer, 7.98" inner, 3000nits peak brightness, adaptive refresh rates.
• Third Generation Snapdragon® 8: Powerful performance, efficient 4nm TSMC process.
• Long Battery Life: 5100mAh, 1.47 days of use, 67W wired, 50W wireless charging.
• Advanced Display Technology: Pol-less Plus for low power consumption, dual stereo speakers.
• Strong Signal and Connectivity: 5G-A enhanced network, satellite communication.
• IPX8 Water Resistance: Safe underwater up to 1.5 meters for 30 minutes.
• Enhanced Productivity: Multi-tasking, AI meeting management, dual-screen translation.

Start a New Folding Experience with Xiaomi MIX Fold 4

Leica Optics Full focal length Leica Summilux quad-camera system:

• 23mm Leica main camera
• 47mm Leica portrait camera
• 115mm Leica telephoto camera
• 15mm Leica ultra-wide camera

Xiaomi Keel Hinge 2.0 Ultra-micro form, super durable R1.6 ultra-micro waterdrop form with ultra-precise craftsmanship. Strong steel with a 82.6% lightweight design. Full carbon fiber structure for main support parts including hinge floating plate, screen support plate, and middle frame battery compartment plate.

Third Generation Snapdragon® 8 Mobile Platform With ultra-large VC liquid cooling, LPDDR5X, UFS4.0, and Wi-Fi 7, the phone is equipped with high-brightness, power-saving flagship screens with consistent brightness inside and out, peak brightness of 3000nits, and a 418PPI with adaptive refresh rates from 1-120Hz.

Xiaomi Surge OS

Enhanced multi-faceted AI capabilities for improved big-screen efficiency. Bidirectional satellite communication with IPX8 water resistance for reliable performance. Safe up to 1.5 meters underwater for 30 minutes. The phone also features a 5100mAh battery, providing up to 1.47 days of battery life with 67W wired charging and 50W wireless charging.

Design

The Xiaomi MIX Fold 4 is Xiaomi's thinnest foldable flagship phone to date. When unfolded, it is as thin as 4.59mm, and when folded, it is only 9.47mm thick. The phone features smooth curves, a comfortable one-hand grip, and is available in four new colors: Dragon Blue, Black, White, and Dragon Scale Fiber Edition.

Innovative Technology

R1.6 Ultra-micro Waterdrop Hinge Three-level linkage with smaller and thinner waterdrop form for a stunningly light and thin experience. The hinge volume is reduced while integrating advanced high-strength steel materials and higher precision processing technology, enhancing durability and reliability.

100% Full Carbon Fiber Structure Aerospace-grade T800H carbon fiber is widely used in the Xiaomi MIX Fold 4, making it lightweight while increasing core component strength. The carbon fiber has a tensile strength of 5500MPa, increasing the impact resistance by 300%.

Display

The dual flagship screens are both eye-catching and eye-friendly.

• Outer Screen: 6.56", 418PPI, peak brightness of 3000nits, 1700nits global brightness, 12-bit color depth, 1-120Hz adaptive refresh rate, low brightness 2160Hz high-frequency PWM dimming, high brightness DC dimming, Dolby Vision, HDR10+.
• Inner Screen: 7.98", 418PPI, peak brightness of 3000nits, 1700nits global brightness, 10-bit color depth, 1-120Hz adaptive refresh rate, low brightness 2160Hz high-frequency PWM dimming, high brightness DC dimming, Dolby Vision, HDR10+.

Pol-less Plus Low Power Consumption Large Screen

The screen transparency is increased to 68%, reducing power consumption and greatly improving battery life. Dual stereo speakers provide immersive sound with excellent audio resolution, delivering pure highs and rich lows.

Professional Camera

Leica Quad Camera System:

• 0.6X Leica ultra-wide camera: 12MP, f/2.2 aperture, 120° ultra-wide view
• 1X Leica main camera: 50MP, f/1.7 aperture, with OIS optical image stabilization
• 2X Leica telephoto camera: 50MP, f/2.0 aperture, 47mm equivalent focal length
• 5X Leica telephoto camera: 10MP, f/2.9 aperture, 115mm equivalent focal length, with OIS optical image stabilization

Advanced Optics

Leica Summilux lenses with ultra-large aperture and native 14-bit high dynamic range sensors provide remarkable clarity, color presentation, and detail retention. Dual telephoto and dual macro capabilities enhance portrait photography and long-distance capture, allowing detailed and vibrant images even at a distance.

Multi-angle Hover

Support for 45 to 135 degrees, freely adjustable for unique shooting angles, capturing interesting photos with ease.

High Performance

The third-generation Snapdragon® 8 mobile platform built on TSMC's 4nm process technology delivers strong performance with optimized power efficiency. The ultra-luxury VC cooling system efficiently dissipates heat for prolonged cool performance. The phone also features a 5100mAh battery with 1.47 days of DOU battery life.

Strong Signal

Equipped with four low-frequency antenna groups for wide coverage and strong penetration, ensuring stable and smooth communication. Xiaomi's strongest antenna combination to date includes four Xiaomi Surge T1 signal enhancement chips. The phone supports 5G-A enhanced networks, satellite communication for emergency use, and global internet coverage in 180+ countries and regions.

Outstanding Water Resistance

The Xiaomi MIX Fold 4 has IPX8 water resistance, making it splash and water-resistant under controlled laboratory conditions.

Enhanced Big Screen Efficiency

With multi-tasking capabilities, the phone supports quick splitscreen switching, super document management, AI meeting management with dual-screen synchronous translation, and precise real-time transcription for enhanced productivity.

Specifications:

Appearance Dimensions

• Length: 159.37mm
• Width: 73.1mm (folded), 143.3mm (unfolded)
• Thickness: 9.47mm (folded), 4.59mm (unfolded)
• Weight: 226g (Black/White/Dragon Blue), 228g (Xiaomi Dragon Scale Fiber Edition)

Network Band

• 5G Dual SIM: Full Netcom 9.0
• Supports dual Nano-SIM card slots, any operator can 5G standby
• Supports Mobile/Unicom/Telecom/Broadcasting 5G/4G/3G/2G
• Supports dual SIM dual VoLTE
• Supports Tiantong satellite communication
• Supported Bands:
  • 5G: n1/n2/n3/n5/n7/n8/n12/n20/n26/n28/n38/n40/n41/n48/n66/n77/n78/n79
  • 4G: FDD-LTE: B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B66; TDD-LTE: B34/B38/B39/B40/B41/B42/B48
  • 3G: WCDMA: B1/B2/B4/B5/B6/B8/B19
  • 2G: GSM: B2/B3/B5/B8; CDMA 1X: BC0
• Supports 4×4 MIMO antenna technology / HPUE / HO RxD

Note: Network and band usage depends on local operator deployment.

Data Connection

• WLAN Protocol: Wi-Fi 7, Wi-Fi 6 Enhanced, Wi-Fi 5, Wi-Fi 4, and 802.11a/b/g
• WLAN Frequency: 2.4G Wi-Fi, 5G Wi-Fi
• Supports MLO, 2x2 MIMO, 8x8 Sounding for MU-MIMO, Wi-Fi Direct, Miracast
• Bluetooth: Bluetooth 5.4, Dual-Bluetooth
• Supports SBC/AAC/AptX/AptX HD/AptX Adaptive/LDAC/LHDC 5.0/LC3

Memory Capacity

• Maximum Selection: 16GB + 1TB
• RAM: 12GB / 16GB LPDDR5X high-speed memory (8533Mbps)
• Internal Storage: 256GB / 512GB / 1TB UFS 4.0 high-speed storage

Mobile Platform

• Third Generation Snapdragon® 8 Mobile Platform
• SoC Process: TSMC 4nm process technology
• CPU Frequency: Octa-core processor, up to 3.3GHz
• GPU: Adreno™ GPU
• AI: Qualcomm AI Engine

Screen Display

Outer Screen

• Size: 6.56 inches FHD+ super clear display
• Type: AMOLED
• Resolution: 2520x1080
• Display Frame Rate: Up to 120Hz
• Touch Sampling Rate: Up to 240Hz
• Contrast Ratio: 8,000,000:1
• HDR: HDR10+, HDR Vivid, Dolby Vision
• Peak Brightness: 3000nit
• Glass Cover: Xiaomi Dragon Crystal Glass

Inner Screen

• Size: 7.98 inches 2K+ super clear display
• Type: AMOLED (Pol-less Plus)
• Resolution: 2488x2224
• Display Frame Rate: Up to 120Hz
• Touch Sampling Rate: Up to 240Hz
• Contrast Ratio: 8,000,000:1
• HDR: HDR10+, HDR Vivid, Dolby Vision
• Peak Brightness: 3000nit

Battery and Charging

• Battery Capacity: 5100mAh (typ), 4975mAh (min)
• Type: Built-in parallel dual-cell high energy density battery, non-removable
• Charging Port: USB Type-C dual-sided charging interface, supports USB 3.2 GEN1
• Fast Charging: 67W Xiaomi Surge wired fast charging, 50W Xiaomi Surge wireless fast charging, supports wireless reverse charging Note: USB 3.2 GEN1 function requires a USB 3.2 GEN1 data cable (not included, must be purchased separately).

Camera System

Leica Optical Full Focal Length Quad Camera

• Main Camera: 50MP, Light Hunter 800 sensor, f/1.7 aperture, 23mm equivalent focal length, supports 2.0μm 4-in-1 super pixel output, OIS optical image stabilization, PD focus, 1G6P
• Floating Telephoto Camera: 50MP, f/2.0 aperture, 47mm equivalent focal length, PD focus, 9cm - ∞ focus distance
• Close-up Telephoto Camera: 10MP, f/2.9 aperture, 115mm equivalent focal length, PD focus, OIS optical image stabilization
• Ultra-wide Camera: 12MP, f/2.2 aperture, 15mm equivalent focal length, 120° ultra-wide-angle
• Features: Leica native dual image quality, Dolby Vision, master lens package, object tracking, motion capture, short video recording, portrait mode, panorama mode, professional mode, time-lapse photography, super night scene, document mode, slow-motion shooting, AI watermark, long exposure, portrait blur adjustment, AI beauty, ultra-wide edge distortion correction, ID card copy mode, voice subtitles, video filters, video beauty, video super stabilization, dynamic photos, countdown photography, level meter, timed continuous shooting, face recognition, HDR, custom watermark, voice-controlled photography

Video Recording

Rear Main Camera Video

• 8K video recording: 24fps
• 4K video recording: 24/30/60fps
• 1080P video recording: 30/60fps
• 720P video recording: 30fps

Rear Ultra-wide Camera Video

• 4K video recording: 24/30fps
• 1080P video recording: 30/60fps
• 720P video recording: 30fps

Rear Telephoto Camera Video

• 4K video recording: 24/30/60fps
• 1080P video recording: 30/60fps
• 720P video recording: 30fps

Rear Ultra-telephoto Camera Video

• 1080P video recording: 30fps
• 720P video recording: 30fps

Slow Motion Rear Camera Video

• 1080P video recording: 120/240/960fps
• 720P video recording: 120/240/480/960/1920fps

Slow Motion Rear Ultra-wide Camera Video

• 720P video recording: 120fps

Slow Motion Rear Telephoto Camera Video

• 1080P video recording: 120/240/960fps
• 720P video recording: 120/240/960fps

Front Inner and Outer Screen Camera

• 16MP high-definition camera
• Features: Dolby Vision, short video recording, portrait mode, time-lapse photography, voice subtitles, video filters, front screen fill light, countdown photography, AI beauty, portrait blur adjustment, dynamic photos, timed continuous shooting, voice-controlled photography

Front Video Recording Frame Rate

• 720P video recording: 30fps
• 1080P video recording: 30/60fps

Multifunction NFC

• NFC Functions: Can be used for transport cards, Mi Pay, door cards, and car keys.
  • Transport Cards: Supports 300+ cities, free migration of 40+ bus cards from old phone to new phone.
  • Mi Pay: Supports online payment, offline card payment, QR code payment, and UnionPay tag touch payment.
  • Door Cards: Can simulate 13.56MHz frequency cards.
  • Car Keys: Supports unlocking and starting the engine via NFC.

Navigation Positioning

• Supported Systems: BeiDou, GPS, Galileo, GLONASS, QZSS, NavIC
• Additional Positioning: AGNSS, data network positioning, Wi-Fi network positioning, sensor-assisted positioning

Audio and Video

• Audio Formats: MP3, FLAC, APE, AAC, OGG, WAV, AMR, AWB
• Audio Features: Hi-Res & Hi-Res Audio Wireless certification, dual stereo speakers, Dolby Atmos, spatial audio, audio sharing, real-time ear return, call recording for WeChat/QQ, high-definition recording 2.0, AI intelligent call noise reduction, AI voiceprint noise reduction
• Video Formats: MP4, MKV, WEBM, 3GP
• Video Features: Supports HDR 10, HDR 10+, Dolby Vision for high dynamic range display

Sensors

• Supported Sensors: Dual-screen under-display ambient light (color temperature) sensor, under-display proximity sensor, rear ambient light (color temperature) sensor, accelerometer, gyroscope, electronic compass, X-axis linear motor, infrared remote control, flicker sensor, laser focus sensor, barometer

Operating System

• OS: Xiaomi HyperOS

Package Contents

• Included Items: Phone host, power adapter (67W), USB Type-C data cable, phone protective case, inner screen protector (pre-applied), outer screen protector (pre-applied), SIM eject tool, manual (including warranty card), protective case installation guide