In depth comparison and review of ASUS ZenFone AR (ZS571KL) 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 | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS571KL | - | |
| Form Factor | Touch | Folder - dual screen | |
| Height | 158.67 mm | 145.2 mm | ASUS ZenFone AR (ZS571KL) has greater height than Microsoft Surface Duo. |
| Width | 77.4 mm | 93.3 mm | Microsoft Surface Duo has greater width than ASUS ZenFone AR (ZS571KL). |
| Depth | 7.99 mm | 9.9 mm | ASUS ZenFone AR (ZS571KL) is narrower than ASUS ZenFone AR (ZS571KL). |
| Weight | 185 g | 250 g | ASUS ZenFone AR (ZS571KL) is lighter than ASUS ZenFone AR (ZS571KL). |
| Dimensions Details | - | Unfolded - 186.9 mm x 4.8 mm x 145.2 mm | |
| Body Colour | Black | Glacier | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.59 W/kg (body), 0.85 W/kg (head) | 0.726 W/kg (head), 1.478 W/kg (body) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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 (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Quad HD Super AMOLED | AMOLED | |
| Foldable Display | - | Yes | |
| Display Design | - | Both directions folding | |
| Screen Size (Display Size) | 5.7" | 5.6" | ASUS ZenFone AR (ZS571KL) has larger screen size than Microsoft Surface Duo. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1800 x 1350 pixels | ASUS ZenFone AR (ZS571KL) has better screen resolution than Microsoft Surface Duo. |
| Display Format | QHD | - | |
| Pixel Density | - | 401 ppi | |
| Aspect Ratio | - | 4:3 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | ASUS Glove Touch technology, ASUS Tru2Life | PixelSense Fusion Displays | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) | 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 | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Processor Number | MSM8996 Pro | - | |
| Clock Speed | 2.35 GHz | - | |
| Processor Core Qty | Quad-core | 8-core | Microsoft Surface Duo has higher processor core quantity than ASUS ZenFone AR (ZS571KL). |
| 64-bit Architecture | Yes | - | ASUS ZenFone AR (ZS571KL) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | - |
| MEMORY | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| 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 2 TB | - |
| CAMERA | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 0 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | - | |
| Sensor Size | 1/2.6" | - | |
| Sensor Name | Sony Exmor RS IMX318 sensor | - | |
| Lens Aperture | F/2.0 | - | |
| Lens Construction | 6-element | - | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone AR (ZS571KL) has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 27 mm | - | |
| Special Effects | Depth of field | - | |
| HDR Mode | HDR Pro | - | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | - | |
| Light Source | Dual LED flash | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | - | |
| Camera Features (Functions) | Zero Shutter Lag, Phase Detect Auto-Focus (PDAF), Smart Remove, Time Rewind, PixelMaster 3.0 camera, 3-axis electronic image stabilisation, Blue Glass IR Filter, Continuous Auto Focus (CAF), RAW image capture, ASUS TriTech technology | - |
| SECOND CAMERA |
|---|
| Camera Features (2nd Camera) | Motion Tracking Rear Camera | - |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 11 Megapixel | Microsoft Surface Duo has better front camera resolution than ASUS ZenFone AR (ZS571KL). |
| Sensor Size (Front) | 1/4" | - | |
| Sensor Name (Front) | Omnivision OV8856 sensor | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 84 degree(s) | |
| Pixel Size (Front) | - | 1 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | Miniature, HDR, Depth of field | HDR | |
| HDR Mode (Front) | HDR Pro | - | |
| Camera Modes (Front) | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | Burst mode, Panorama, low-light shots, Portrait mode with adjustable depth control | |
| Light Source (Front) | Display flash | 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) | PixelMaster 3.0 camera, Time Rewind, Smart Remove | 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 | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3577 mAh | Microsoft Surface Duo has larger battery capacity than ASUS ZenFone AR (ZS571KL). |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0, Power Delivery 2.0, BoostMaster Fast Charging | - | ASUS ZenFone AR (ZS571KL) has fast charging technology. |
| 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 |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 7.0 Nougat | Android 10 | |
| User Interface | ASUS ZenUI 3.0 | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | GPRS, FDD-LTE, TDD-LTE, LAA | |
|---|---|---|---|
| 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 6, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 800, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, 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 850, FDD 2600, FDD 900, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, 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/ac | IEEE 802.11ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | OPP, PAN, A2DP, AVRCP, HID | - | |
| Messaging Services | SMS, MMS | - |
| MEDIA | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A, apt-X, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | |
| Sound Enhancements | DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio | Qualcomm aptX audio |
| FEATURES | ASUS ZenFone AR (ZS571KL) | 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, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, G-sensor, hall sensor, RGB sensor | Proximity sensor, hall sensor, dual accelerometers, dual gyroscope, dual magnetometer, dual ambient light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (side) | |
| Additional Phone Features | Infrared remote control, Dual microphones, Google Drive Storage (100 GB) (free for 2 years), Tango technology support, ASUS SonicMaster 3.0 technology, NXP Smart AMP technology, ASUS Noise Reduction technology, Daydream technology support | 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 | ASUS ZenFone AR (ZS571KL) | Microsoft Surface Duo |
|---|
| Included Accessories | Power adapter, USB-C cable | SIM card removal tool, USB-C headphones, 18W charger, Surface Duo Bumper (Glacier) |
|---|
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