In depth comparison and review of UMIDIGI One Max and Microsoft Surface Duo. 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 | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Folder - dual screen | |
| Height | 156.8 mm | 145.2 mm | UMIDIGI One Max has greater height than Microsoft Surface Duo. |
| Width | 75.6 mm | 93.3 mm | Microsoft Surface Duo has greater width than UMIDIGI One Max. |
| Depth | 8.35 mm | 9.9 mm | UMIDIGI One Max is narrower than UMIDIGI One Max. |
| Weight | 205 g | 250 g | UMIDIGI One Max is lighter than UMIDIGI One Max. |
| Dimensions Details | - | Unfolded - 186.9 mm x 4.8 mm x 145.2 mm | |
| Body Colour | Twilight | Glacier | |
| Body Material | Tempered glass, aluminium frame | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.726 W/kg (head), 1.478 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | - | AMOLED | |
| Foldable Display | - | Yes | |
| Display Design | - | Both directions folding | |
| Screen Size (Display Size) | 6.3" | 5.6" | UMIDIGI One Max has larger screen size than Microsoft Surface Duo. |
| Screen Resolution (Display Resolution) | 1520 x 720 pixels | 1800 x 1350 pixels | Microsoft Surface Duo has better screen resolution than UMIDIGI One Max. |
| Pixel Density | 271 ppi | 401 ppi | Microsoft Surface Duo has better pixel density than UMIDIGI One Max. |
| Aspect Ratio | 19:9 | 4:3 | |
| Display Features | In-Cell Display Technology, Reading mode, Colour temperature adjustment | PixelSense Fusion Displays | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 5.6" | |
| Second Display Resolution | - | 1800 x 1350 pixels |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | - | 8.1 in | |
|---|---|---|---|
| Unfolded Display Resolution | - | 2700 x 1800 pixels |
| PROCESSOR | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Processor Type (CPU) | MediaTek Helio P23 | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Clock Speed | 2 GHz | - | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | UMIDIGI One Max has 64-bit architecture. |
| Graphics System (GPU) | Mali-G71 MP2 | - |
| MEMORY | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | 6 GB | Microsoft Surface Duo has more RAM than UMIDIGI One Max. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | UFS 3.0 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | - |
| CAMERA | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 0 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | - | |
| Sensor Name | Omnivision OV12870 sensor | - | |
| Lens Aperture | F/2.0 | - | |
| Lens Construction | 6-element | - | |
| Camera Modes | Panorama | - | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| Light Source | Dual LED flash | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Functions) | Real-time photo filters | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | - |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 11 Megapixel | UMIDIGI One Max has better front camera resolution than Microsoft Surface Duo. |
| Sensor Name (Front) | Samsung S5K3P3 | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| 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 | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| 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 | |
| Camera Features (Front) | Selfie countdown | 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 | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Battery Capacity (Battery Size) | 4150 mAh | 3577 mAh | UMIDIGI One Max has larger battery capacity than Microsoft Surface Duo. |
|---|---|---|---|
| Wireless Charging | Yes | - | UMIDIGI One Max can be charged wirelessly. |
| Wireless Charging Standards | Qi, Fast Wireless Charging | - | |
| Standby Time | - | 240 hours | |
| Talk Time | - | 1620 minutes | |
| Run Time Details | - | Standby: up to 240 hrs Talk: up to 1620 min Playback (local video): up to 15.5 hrs |
| CELLULAR | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1.0 Oreo | Android 10 | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, GLONASS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, FDD-LTE, TDD-LTE, LAA | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 850, 900 | |
| 4G LTE Band | 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 34, 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 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 | |
| 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 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, TDD 2000, 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 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 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | HID | - | |
| NFC | Yes | - | UMIDIGI One Max has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A, apt-X, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, MPEG-4, M4V, ASP, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | |
| Sound Enhancements | - | Qualcomm aptX audio |
| FEATURES | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, gyro sensor, geomagnetic sensor, L-sensor, P-sensor | Proximity sensor, hall sensor, dual accelerometers, dual gyroscope, dual magnetometer, dual ambient light sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (side) | |
| Additional Phone Features | Dual microphones | MIMO technology, Fast Charging, dual microphones with noise suppression and echo cancellation, Full Duplex communication, 360° hinge, stylus support, two apps side-by-side |
| OTHERS | UMIDIGI One Max | Microsoft Surface Duo |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, pre-installed screen protector, protective case | SIM card removal tool, USB-C headphones, 18W charger, Surface Duo Bumper (Glacier) |
|---|
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