In depth comparison and review of Microsoft Surface Duo and Xiaomi Redmi Note 12. 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 | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Folder - dual screen | Touch | |
Height | 145.2 mm | 165.66 mm | Xiaomi Redmi Note 12 has greater height than Microsoft Surface Duo. |
Width | 93.3 mm | 75.96 mm | Microsoft Surface Duo has greater width than Xiaomi Redmi Note 12. |
Depth | 9.9 mm | 7.85 mm | Xiaomi Redmi Note 12 is narrower than Microsoft Surface Duo. |
Weight | 250 g | 183.5 g | Xiaomi Redmi Note 12 is lighter than Microsoft Surface Duo. |
Dimensions Details | Unfolded - 186.9 mm x 4.8 mm x 145.2 mm | - | |
Body Colour | Glacier | Ice blue | Onyx grey | Mint green | |
Protection | - | Dustproof, splashproof | |
Waterproof (Water-resistant) | - | - | Xiaomi Redmi Note 12 is waterproof. |
IP rating | - | IP53 | |
Repairability Index | - | 7.5 (out of 10) | |
SAR Value | 0.726 W/kg (head), 1.478 W/kg (body) | 2.55 W/kg (limb), 0.9 W/kg (head), 0.995 W/kg (body) | |
Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | - | |
SIM Card Qty | Dual-SIM | Dual-SIM |
DISPLAY | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Display Type | OLED display | OLED display | |
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Display Technology | AMOLED | AMOLED | |
Foldable Display | Yes | - | |
Display Design | Both directions folding | - | |
Screen Size (Display Size) | 5.6" | 6.67" | Xiaomi Redmi Note 12 has larger screen size than Microsoft Surface Duo. |
Screen Resolution (Display Resolution) | 1800 x 1350 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 12 has better screen resolution than Microsoft Surface Duo. |
Display Format | - | Full HD+ | |
Pixel Density | 401 ppi | 395 ppi | Microsoft Surface Duo has better pixel density than Xiaomi Redmi Note 12. |
Aspect Ratio | 4:3 | - | |
Max Brightness | - | 1200 cd/m² | |
Contrast Ratio | - | 4500000:1 | |
Display Refresh Rate | - | 120 Hz | |
Touch Sampling Rate | - | 240 Hz | |
Display Features | PixelSense Fusion Displays | Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro | |
Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
SECOND DISPLAY |
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Second Display Type | OLED display - colour | - | |
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Second Display Screen Size | 5.6" | - | |
Second Display Resolution | 1800 x 1350 pixels | - |
UNFOLDED DISPLAY |
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Unfolded Display Screen Size | 8.1 in | - | |
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Unfolded Display Resolution | 2700 x 1800 pixels | - |
PROCESSOR | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Processor Type (CPU) | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 685 | |
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Clock Speed | - | 2.8 GHz | |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
Graphics System (GPU) | - | Qualcomm ADRENO 610 |
MEMORY | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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RAM | 6 GB | LPDDR4X SDRAM - 4 GB | Microsoft Surface Duo has more RAM than Xiaomi Redmi Note 12. |
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Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
Memory Interface | UFS 3.0 | UFS 2.2 | |
Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
CAMERA | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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MAIN CAMERA |
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Number of Main Cameras | 0 | 3 | |
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Sensor Resolution | - | 50 Megapixel | |
Sensor Size | - | 1/2.76" | |
Sensor Name | - | Samsung ISOCELL JN1 | |
Lens Aperture | - | F/1.8 | |
Lens Construction | - | 5-element | |
Pixel Size | - | 0.64 μm | |
Focus Adjustment | - | Automatic | |
Special Effects | - | Bokeh effect | |
Camera Modes | - | Portrait mode | |
Light Source | - | LED flash | |
Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
Camera Features (Functions) | - | 4-in-1 to 1.28μm pixel |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
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Sensor Size (2nd Camera) | - | 1/4" | |
Sensor Name (2nd Camera) | - | Omnivision OV08D sensor | |
Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Lens Element Qty (2nd Camera) | - | 5-element | |
Field of View (2nd Camera) | - | 120 degree(s) | |
Pixel Size (2nd Camera) | - | 1.12 μm |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Lens Element Qty (3rd Camera) | - | 3-element | |
Camera Functions (3rd Camera) | - | Macro camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 11 Megapixel | 13 Megapixel | Xiaomi Redmi Note 12 has better front camera resolution than Microsoft Surface Duo. |
Sensor Size (Front) | - | 1/3.0" | |
Lens Aperture (Front) | F/2.0 | F/2.45 | Microsoft Surface Duo has better front lens aperture than Microsoft Surface Duo. |
Lens Element Qty (Front) | - | 5-element | |
Field of View (Front) | 84 degree(s) | - | |
Pixel Size (Front) | 1 μm | - | |
Special Effects (Front) | HDR | - | |
Camera Modes (Front) | Burst mode, Panorama, low-light shots, Portrait mode with adjustable depth control | - | |
Light Source (Front) | High CRI LED flash | - | |
Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
Camera Features (Front) | Phase Detect Auto-Focus (PDAF), FOV optimised with AI (for front and rear), dynamic range scene detection, Super-resolution zoom, super zoom up to 7x, gyro-based digital video stabilisation | - |
BATTERY AND CHARGING | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Battery Capacity (Battery Size) | 3577 mAh | 5000 mAh | Xiaomi Redmi Note 12 has larger battery capacity than Microsoft Surface Duo. |
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Fast Charging Technology | - | Mi-FC fast charging technology | Xiaomi Redmi Note 12 has fast charging technology. |
Standby Time | 240 hours | - | |
Talk Time | 1620 minutes | 1860 minutes | Xiaomi Redmi Note 12 has longer battery life when making calls than Microsoft Surface Duo. |
Run Time Details | Standby: up to 240 hrs Talk: up to 1620 min Playback (local video): up to 15.5 hrs |
Talk: up to 1860 min Gaming: up to 9 hrs Playback (video): up to 21 hrs |
CELLULAR | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 10 | Android 13 | |
User Interface | - | MIUI 14 | |
Intelligent Assistant | Google Assistant | - | |
Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, Galileo |
COMMUNICATIONS | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Data Transmission | GPRS, FDD-LTE, TDD-LTE, LAA | FDD-LTE, TDD-LTE | |
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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 5, Band 8 | Band 1, Band 5, Band 8 | |
3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 850, 900 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 14, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 46, Band 66 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700 PS, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
Wireless Interface | IEEE 802.11ac | IEEE 802.11a/b/g/n/ac | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 |
MEDIA | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A, apt-X, IMY, RTTTL, RTX, OTA, MID | - | |
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Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | - | |
Sound Enhancements | Qualcomm aptX audio | - |
FEATURES | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
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Sensors | Proximity sensor, hall sensor, dual accelerometers, dual gyroscope, dual magnetometer, dual ambient light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
Security Devices | Fingerprint reader (side) | Face recognition, fingerprint reader (side) | |
Security Technology | - | AI face unlock | |
Additional Phone Features | MIMO technology, Fast Charging, dual microphones with noise suppression and echo cancellation, Full Duplex communication, 360° hinge, stylus support, two apps side-by-side | Graphite cooling, IR blaster, coin vibration motor |
OTHERS | Microsoft Surface Duo | Xiaomi Redmi Note 12 |
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Included Accessories | SIM card removal tool, USB-C headphones, 18W charger, Surface Duo Bumper (Glacier) | 33W charger | |
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Compliant Standards | - | IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification, Netflix HD Certification |