Side by side comparison and review of ASUS ZenFone AR (ZS571KL) and Xiaomi MI 9. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS571KL | - | |
| Form Factor | Touch | Touch | |
| Height | 158.67 mm | 157.5 mm | ASUS ZenFone AR (ZS571KL) has greater height than Xiaomi MI 9. |
| Width | 77.4 mm | 74.67 mm | ASUS ZenFone AR (ZS571KL) has greater width than Xiaomi MI 9. |
| Depth | 7.99 mm | 7.61 mm | Xiaomi MI 9 is narrower than ASUS ZenFone AR (ZS571KL). |
| Weight | 185 g | 173 g | Xiaomi MI 9 is lighter than ASUS ZenFone AR (ZS571KL). |
| Body Colour | Black | Ocean blue | Piano black | |
| Body Material | - | Curved glass | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.59 W/kg (body), 0.85 W/kg (head) | 1.301 W/kg (body), 1.389 W/kg (head) | |
| 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 | |
| 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) | Xiaomi MI 9 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Quad HD Super AMOLED | AMOLED | |
| Screen Size (Display Size) | 5.7" | 6.39" | Xiaomi MI 9 has larger screen size than ASUS ZenFone AR (ZS571KL). |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 2340 x 1080 pixels | ASUS ZenFone AR (ZS571KL) has better screen resolution than Xiaomi MI 9. |
| Display Format | QHD | Full HD+ | |
| Pixel Density | - | 403 ppi | |
| Max Brightness | - | 600 cd/m² | |
| Contrast Ratio | - | 60000:1 | |
| HDR | - | Yes | Xiaomi MI 9 has HDR. |
| HDR Technology | - | HDR10 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | Sunshine mode 2.0 | |
| Display Features | ASUS Glove Touch technology, ASUS Tru2Life | Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG) | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) | Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating |
| PROCESSOR | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Processor Number | MSM8996 Pro | - | |
| Clock Speed | 2.35 GHz | 2.84 GHz | Xiaomi MI 9 has higher clock speed than ASUS ZenFone AR (ZS571KL). |
| Processor Core Qty | Quad-core | 8-core | Xiaomi MI 9 has higher processor core quantity than ASUS ZenFone AR (ZS571KL). |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | Qualcomm ADRENO 640 |
| MEMORY | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | LPDDR4X SDRAM - 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | ASUS ZenFone AR (ZS571KL) has more internal memory than Xiaomi MI 9. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | - |
| CAMERA | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 48 Megapixel | Xiaomi MI 9 has better camera resolution than ASUS ZenFone AR (ZS571KL). |
| Sensor Size | 1/2.6" | - | |
| Sensor Name | Sony Exmor RS IMX318 sensor | Sony Exmor RS IMX586 sensor | |
| Lens Type | - | Ultra wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.75 | Xiaomi MI 9 has better lens aperture than ASUS ZenFone AR (ZS571KL). |
| Lens Construction | 6-element | - | |
| Pixel Size | - | 0.8 μm | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone AR (ZS571KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | Yes | |
| Minimum Focal Length (Focal Distance) | 27 mm | - | |
| Optical Zoom | - | 2x | |
| 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 | Burst mode, Panorama, portrait mode, AI Beautify, Smart ultra-wide angle mode, Ultra nightscape mode, Photo timer, Level display, Custom watermark, Full body portrait mode, Moon mode | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI 9 has face detection. |
| Light Source | Dual LED flash | Dual flash | |
| Still Image Resolutions | - | 8000 x 6000 | |
| 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, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 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 | Sapphire crystal lens cover, Phase Detect Auto-Focus (PDAF), Dynamic photos, video stabilisation, Contrast Auto-Focus, AI scene detection, AI studio lighting, Video Beautify, AI Triple camera, 960 fps Smart audio pairing, AI lens flare, AI high resolution photos, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Group photo face correction, Portrait mode background blurring, Motion tracking, Quick motion |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Pixel Size (2nd Camera) | - | 1 μm | |
| Camera Features (2nd Camera) | Motion Tracking Rear Camera | Macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 16 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Pixel Size (3rd Camera) | - | 1 μm |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 20 Megapixel | Xiaomi MI 9 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) | - | 0.9 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | Miniature, HDR, Depth of field | HDR, Magic mirror | |
| 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 | AI portrait mode, AI Beautify, AI makeup | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI 9 has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | PixelMaster 3.0 camera, Time Rewind, Smart Remove | Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare |
| BATTERY AND CHARGING | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3300 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0, Power Delivery 2.0, BoostMaster Fast Charging | Qualcomm Quick Charge 4.0+ | Both phones have fast charging technology. |
| Wireless Charging Standards | - | WPC, Qi | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Technology | WCDMA (UMTS) / GSM | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 7.0 Nougat | - | |
| User Interface | ASUS ZenUI 3.0 | MIUI 10 | |
| Intelligent Assistant | - | Google Assistant | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 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 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 800, 900 | 2100, 1900, 1700, 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 20, Band 28, Band 38, Band 39, Band 40 | |
| 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 800 DD, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | OPP, PAN, A2DP, AVRCP, HID | - | |
| NFC | - | Yes | Xiaomi MI 9 has NFC reader for mobile payments. |
| WLAN Security | - | WPA3 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | |
| Sound Enhancements | DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio | Qualcomm TrueWireless Stereo Plus |
| FEATURES | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| 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 | Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (under display) | |
| 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 | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo |
| OTHERS | ASUS ZenFone AR (ZS571KL) | Xiaomi MI 9 |
|---|
| Included Accessories | Power adapter, USB-C cable | Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland Certified Safe Fast-Charge System |
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