In depth comparison and review of Xiaomi MI 4i and Motorola RAZR 40 Ultra. 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 | Motorola RAZR 40 Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Folder (flip) - touch screen, dual screen | |
| Height | 138.1 mm | 170.83 mm | Motorola RAZR 40 Ultra has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 73.95 mm | Motorola RAZR 40 Ultra has greater width than Xiaomi MI 4i. |
| Depth | 7.8 mm | 6.99 mm | Motorola RAZR 40 Ultra is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 184.5 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Dimensions Details | - | Unfolded - 73.95 mm x 6.99 mm x 170.83 mm Folded - 73.95 mm x 15.1 mm x 88.42 mm |
|
| Body Colour | Black | Dark grey | White | Glacier blue | Infinite black | Viva magenta | |
| Body Material | - | Vegan leather, 7000 Series aluminium, Corning Gorilla Glass Victus | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | Motorola RAZR 40 Ultra is waterproof. |
| IP rating | - | IP52 | |
| SAR Value | 1.29 W/kg | - | |
| 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, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Display Type | LCD display | pOLED display | |
|---|---|---|---|
| Display Technology | IPS | Foldable AMOLED (LTPO) | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 5" | 6.9" | Motorola RAZR 40 Ultra has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2640 x 1080 pixels | Motorola RAZR 40 Ultra has better screen resolution than Xiaomi MI 4i. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 441 ppi | 413 ppi | Xiaomi MI 4i has better pixel density than Motorola RAZR 40 Ultra. |
| Aspect Ratio | - | 22:9 | |
| Max Brightness | - | 1400 cd/m² | |
| Colour Depth | 16.7 million colours | 1.07 billion colours | Motorola RAZR 40 Ultra has better colour depth than Xiaomi MI 4i. |
| HDR | - | Yes | Motorola RAZR 40 Ultra has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | - | 165 Hz | |
| Touch Sampling Rate | - | 360 Hz | |
| Display Features | - | Attentive display, Dark mode, Peak Display, 120% DCI-P3, secondary screen: 1100 nits max brightness | |
| Display Protection (Screen Protector) | Corning Concore Glass | Corning Gorilla Glass Victus (scratch resistant glass) |
| SECOND DISPLAY |
|---|
| Second Display Type | - | pOLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 3.6" | |
| Second Display Resolution | - | 1066 x 1056 pixels | |
| Second Display Colour Depth | - | 1.07 billion colours |
| PROCESSOR | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 8+ Gen 1 | |
|---|---|---|---|
| Clock Speed | 1.7 GHz | - | |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | - | Xiaomi MI 4i has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | - |
| MEMORY | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| RAM | 2 GB | LPDDR5 SDRAM - 8 GB | Motorola RAZR 40 Ultra has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 256 GB | Motorola RAZR 40 Ultra has more internal memory than Xiaomi MI 4i. |
| CAMERA | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Xiaomi MI 4i has better camera resolution than Motorola RAZR 40 Ultra. |
| Lens Aperture | F/2.0 | F/1.5 | Motorola RAZR 40 Ultra has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | - | |
| Pixel Size | - | 1.4 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Motorola RAZR 40 Ultra has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Spot Colour | |
| HDR Mode | Auto HDR mode | HDR10+ video | |
| Camera Modes | Panorama, manual mode | Panorama, Pro mode, BurstShot, super resolution mode, Super slow motion, Active photos, Portrait, Night Vision, Portrait video, Hyperlapse video, Live filter, Capture Dual, Auto night vision | |
| Face Recognition (Face ID) | Face detection, smile detection | Auto smile capture | Both phones have face detection. |
| Light Source | Dual LED flash | Single LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | - | Smart composition, shot optimisation, Google Lens, horizon lock |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 13 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 108 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Functions (2nd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 32 Megapixel | Motorola RAZR 40 Ultra has better front camera resolution than Xiaomi MI 4i. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/2.4 | Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | - | |
| Pixel Size (Front) | - | 0.7 μm | |
| Special Effects (Front) | - | HDR, photo booth, Spot Colour | |
| Camera Modes (Front) | - | BurstShot, Face Beauty, Timelapse video, Active photos, Selfie Mirror, Portrait video, Gesture selfie, Hyperlapse video, Live filter, Capture Dual, Portrait mode beauty, Auto night vision | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola RAZR 40 Ultra has face detection. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Front) | - | Quad Pixel technology for 1.4 µm, Selfie animation |
| BATTERY AND CHARGING | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 3800 mAh | Motorola RAZR 40 Ultra has larger battery capacity than Xiaomi MI 4i. |
|---|---|---|---|
| Fast Charging Technology | - | TurboPower technology | Motorola RAZR 40 Ultra has fast charging technology. |
| Wireless Charging | - | Yes | Motorola RAZR 40 Ultra can be charged wirelessly. |
| Talk Time | 2100 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 2100 min | - | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Motorola RAZR 40 Ultra has more advanced generation mobile network. |
| Operating System | Android 5.0.2 (Lollipop) | Android 13 | |
| User Interface | MIUI V6 | My UX | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL |
| COMMUNICATIONS | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | EDGE, HSPA+, LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 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 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 43, Band 48, Band 66 | |
| 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 700 APT, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3700, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD TD 4500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.3 | |
| Bluetooth Profiles | A2DP, HID | - | |
| NFC | - | Yes | Motorola RAZR 40 Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | - | |
| Sound Enhancements | - | Dolby Atmos sound technology, Spatial audio, Qualcomm Snapdragon Sound |
| FEATURES | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, ambient light sensor, proximity sensor, hall sensor, light sensor, gyroscope, eCompass | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | Three microphones, Game mode, dual stereo speakers |
| OTHERS | Xiaomi MI 4i | Motorola RAZR 40 Ultra |
|---|
| Included Accessories | Power adapter | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP52 |
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