ASUS ZenFone AR (ZS571KL) vs. Microsoft Surface Duo 2

Phone Comparison, Reviews and Tests

In depth comparison and review of ASUS ZenFone AR (ZS571KL) and Microsoft Surface Duo 2. 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.

Phone Specifications Comparison

ASUS ZenFone AR (ZS571KL) vs. Microsoft Surface Duo 2 Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
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 2.
Width 77.4 mm 92.1 mm Microsoft Surface Duo 2 has greater width than ASUS ZenFone AR (ZS571KL).
Depth 7.99 mm 11 mm ASUS ZenFone AR (ZS571KL) is narrower than ASUS ZenFone AR (ZS571KL).
Weight 185 g 284 g ASUS ZenFone AR (ZS571KL) is lighter than ASUS ZenFone AR (ZS571KL).
Dimensions Details - Unfolded - 184.5 mm x 5.5 mm x 145.2 mm
Body Colour Black Glacier | Obsidian
Body Material - Corning Gorilla Glass
Waterproof (Water-resistant) - -
Repairability Index - 3.9 (out of 10)
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 2
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" 5.8" Microsoft Surface Duo 2 has larger screen size than ASUS ZenFone AR (ZS571KL).
Screen Resolution (Display Resolution) 2560 x 1440 pixels 1344 x 1892 pixels ASUS ZenFone AR (ZS571KL) has better screen resolution than Microsoft Surface Duo 2.
Display Format QHD -
Pixel Density - 401 ppi
Aspect Ratio - 13:9
Max Brightness - 800 cd/m²
HDR - Yes Microsoft Surface Duo 2 has HDR.
Display Enhancement Technology Bluelight Filter for Eye Care -
Display Refresh Rate - 90 Hz
Display Features ASUS Glove Touch technology, ASUS Tru2Life DCI-P3 Wide colour gamut, 100% sRGB, Dual PixelSense Fusion Displays
Display Protection (Screen Protector) Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass Victus (scratch resistant glass)
SECOND DISPLAY
Second Display Type - OLED display - colour
Second Display Screen Size - 5.8"
Second Display Resolution - 1344 x 1892 pixels
UNFOLDED DISPLAY
Unfolded Display Screen Size - 8.3 in
Unfolded Display Resolution - 2688 x 1892 pixels
PROCESSOR ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
Processor Type (CPU) Qualcomm Snapdragon 821 Qualcomm Snapdragon 888 5G
Processor Number MSM8996 Pro -
Clock Speed 2.35 GHz -
Processor Core Qty Quad-core 8-core Microsoft Surface Duo 2 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 2
RAM LPDDR4 SDRAM - 6 GB LPDDR5 SDRAM - 8 GB Microsoft Surface Duo 2 has more RAM than ASUS ZenFone AR (ZS571KL).
Internal Memory Size (Storage Capacity) 128 GB 128 GB Both phones have the same internal memory capacity.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 2 TB -
CAMERA ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
MAIN CAMERA
Number of Main Cameras 2 3
Sensor Resolution 23 Megapixel 12 Megapixel ASUS ZenFone AR (ZS571KL) has better camera resolution than Microsoft Surface Duo 2.
Sensor Size 1/2.6" -
Sensor Name Sony Exmor RS IMX318 sensor -
Lens Aperture F/2.0 F/1.7 Microsoft Surface Duo 2 has better lens aperture than ASUS ZenFone AR (ZS571KL).
Lens Construction 6-element -
Pixel Size - 1.4 μm
Optical Image Stabiliser (OIS) 4 Stop OIS (Optical Image Stabilisation) Optical Image Stabiliser (OIS) Both phones have optical image stabilization.
Focus Adjustment Automatic -
Laser Auto Focus Yes -
Minimum Focal Length (Focal Distance) 27 mm -
Digital Zoom - 10x
Special Effects Depth of field HDR
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 Night mode, Auto mode, low-light shots, Panorama mode with wide dynamic range, slow motion video at 120 or 240fps
Light Source Dual LED flash 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 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 (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 Dual Pixel Phase Detect Auto-Focus (PDAF), Smooth Zoom, HEVC (High Efficiency Video coding), HDR video recording, multi-frame photo capture, dynamic range scene detection
SECOND CAMERA
Sensor Resolution (2nd Camera) - 12 Megapixel
Lens Type (2nd Camera) - Telephoto lens
Lens Aperture (2nd Camera) - F/2.4
Pixel Size (2nd Camera) - 1 μm
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) Microsoft Surface Duo 2 has optical stabilisation of the second camera.
Optical Zoom - 2x
Camera Features (2nd Camera) Motion Tracking Rear Camera Phase Detect Auto-Focus (PDAF)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 16 Megapixel
Lens Type (3rd Camera) - Ultra wide-angle lens
Lens Aperture (3rd Camera) - F/2.2
Field of View (3rd Camera) - 110 degree(s)
Pixel Size (3rd Camera) - 1 μm
Camera Features (3rd Camera) - Field of view, distortion correction
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 12 Megapixel Microsoft Surface Duo 2 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.
Pixel Size (Front) - 1 μm
Focus Adjustment Focus free -
Special Effects (Front) Miniature, HDR, Depth of field -
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 -
Light Source (Front) Display flash -
Camera Features (Front) PixelMaster 3.0 camera, Time Rewind, Smart Remove -
BATTERY AND CHARGING ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
Battery Capacity (Battery Size) 3300 mAh 4449 mAh Microsoft Surface Duo 2 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.
Talk Time - 1680 minutes
Run Time Details - Talk: up to 1680 min
Playback (local video): up to 15.5 hrs
Battery Technology Lithium polymer -
CELLULAR ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G Microsoft Surface Duo 2 has more advanced generation mobile network.
Operating System Android 7.0 Nougat Android 11
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 2
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE GPRS, FDD-LTE, TDD-LTE, Gigabit LTE, LAA, 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 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 42, Band 46, Band 48, Band 66, Band 71
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 3500, TDD 5150, TDD 3600, FDD 1700 - 2110 AWS-3, FDD 600
5G NR Band - N1, n2, n3, n5, n7, n20, n28, n38, n41, n66, n71, n77, n78, n79, n25
5G NR Frequency - FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, FDD 600, TDD TD 3700, TDD TD 3500, TDD TD 4500, FDD 1900
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11ax
Bluetooth Bluetooth 4.2 Bluetooth 5.1
Bluetooth Profiles OPP, PAN, A2DP, AVRCP, HID -
NFC - Yes Microsoft Surface Duo 2 has NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
Supported Digital Audio Standards - WAV, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A, apt-X, IMY, RTX, OTA, MID, TWS, RTTL
Supported Digital Video Standards - MKV, FLV, AVI, MOV, MPEG-4, WMV, ASF, 3GP, H.264, TS, M2TS, WebM, HEVC, 3G2, HEIF, H.265 HEVC, HEIC
Sound Enhancements DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio Qualcomm aptX HD audio, Qualcomm aptX Classic
FEATURES ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
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 Hall sensor, Time of Flight (ToF), dual accelerometers, dual gyroscope, dual magnetometer, dual ambient light sensor, dual proximity 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 battery, Full Duplex communication, dual microphones with AI-based noise suppression and acoustic echo cancellation
OTHERS ASUS ZenFone AR (ZS571KL) Microsoft Surface Duo 2
Included Accessories Power adapter, USB-C cable SIM card removal tool, USB-C headset, Surface Duo 2 USB-C cable
Compliant Standards - HEARING AID M4/T3
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