Side by side comparison and review of ASUS ZenFone AR (ZS571KL) and Xiaomi Redmi Note 9 Pro. 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 Redmi Note 9 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS571KL | - | |
| Form Factor | Touch | Touch | |
| Height | 158.67 mm | 165.75 mm | Xiaomi Redmi Note 9 Pro has greater height than ASUS ZenFone AR (ZS571KL). |
| Width | 77.4 mm | 76.68 mm | ASUS ZenFone AR (ZS571KL) has greater width than Xiaomi Redmi Note 9 Pro. |
| Depth | 7.99 mm | 8.8 mm | ASUS ZenFone AR (ZS571KL) is narrower than ASUS ZenFone AR (ZS571KL). |
| Weight | 185 g | 209 g | ASUS ZenFone AR (ZS571KL) is lighter than ASUS ZenFone AR (ZS571KL). |
| Body Colour | Black | Interstellar grey | Tropical green | |
| Body Material | - | Curved 3D glass, Gorilla glass 5 | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.59 W/kg (body), 0.85 W/kg (head) | 2.07 W/kg (limb), 1.021 W/kg (body), 0.662 W/kg (head) | |
| Integrated Components | FM radio | Ultra-linear speaker | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| 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 Redmi Note 9 Pro |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD Super AMOLED | - | |
| Screen Size (Display Size) | 5.7" | 6.67" | Xiaomi Redmi Note 9 Pro has larger screen size than ASUS ZenFone AR (ZS571KL). |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 2400 x 1080 pixels | ASUS ZenFone AR (ZS571KL) has better screen resolution than Xiaomi Redmi Note 9 Pro. |
| Display Format | QHD | Full HD+ | |
| Max Brightness | - | 450 cd/m² | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | ASUS Glove Touch technology, ASUS Tru2Life | Reading mode 2.0, Dot Display | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 720G | |
|---|---|---|---|
| Processor Number | MSM8996 Pro | - | |
| Clock Speed | 2.35 GHz | 2.3 GHz | ASUS ZenFone AR (ZS571KL) has higher clock speed than Xiaomi Redmi Note 9 Pro. |
| Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi Note 9 Pro 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 618 |
| MEMORY | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | 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 Redmi Note 9 Pro. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 64 Megapixel | Xiaomi Redmi Note 9 Pro has better camera resolution than ASUS ZenFone AR (ZS571KL). |
| Sensor Size | 1/2.6" | 1/1.72" | ASUS ZenFone AR (ZS571KL) has better camera sensor size than Xiaomi Redmi Note 9 Pro. |
| Sensor Name | Sony Exmor RS IMX318 sensor | - | |
| Lens Aperture | F/2.0 | F/1.89 | Xiaomi Redmi Note 9 Pro has better lens aperture than ASUS ZenFone AR (ZS571KL). |
| Lens Construction | 6-element | 6-element | |
| Field of View (FoV) | - | 79.8 degree(s) | |
| 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 | - | |
| Minimum Focal Length (Focal Distance) | 27 mm | - | |
| Special Effects | Depth of field | HDR, Kaleidoscope | |
| 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, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 Pro has face detection. |
| Light Source | Dual LED flash | 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, 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 | 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, AI Quad camera, Steady handheld night photography, full screen frame, AI watermark |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| 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) | - | 119 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Features (2nd Camera) | Motion Tracking Rear Camera | 5-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/5" | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.12 μm | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | AF (2cm-10cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (4th Camera) | - | 1/5" | |
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 16 Megapixel | Xiaomi Redmi Note 9 Pro has better front camera resolution than ASUS ZenFone AR (ZS571KL). |
| Sensor Size (Front) | 1/4" | 1/3.06" | ASUS ZenFone AR (ZS571KL) has better front camera sensor size than Xiaomi Redmi Note 9 Pro. |
| Sensor Name (Front) | Omnivision OV8856 sensor | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.48 | ASUS ZenFone AR (ZS571KL) has better front lens aperture than ASUS ZenFone AR (ZS571KL). |
| Field of View (Front) | - | 82.4 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 | Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 Pro has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Camera Features (Front) | PixelMaster 3.0 camera, Time Rewind, Smart Remove | AI scene detection, Palm shutter, AI silhouette detection |
| BATTERY AND CHARGING | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 5020 mAh | Xiaomi Redmi Note 9 Pro has larger battery capacity than ASUS ZenFone AR (ZS571KL). |
|---|---|---|---|
| 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. |
| Talk Time | - | 1980 minutes | |
| Run Time Details | - | Talk: up to 1980 min Gaming: up to 13 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
|
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| 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 | MIUI 11 | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1900 GSM, 2100 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 20, Band 28, Band 38, Band 40, Band 41 | |
| 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 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 Redmi Note 9 Pro has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, XviD, M4V, MP4 | |
| Sound Enhancements | DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio | - | |
| Audio Amplifier | - | Smart PA |
| FEATURES | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| 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, digital compass, gyro sensor, distance sensor, infrared (IR) sensor, In-screen ambient light sensor | |
| Security Devices | Fingerprint reader | Face recognition, 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 | Infrared remote control, AI face unlock, Qualcomm 5th generation AI Engine, Z-axis linear vibration motor |
| OTHERS | ASUS ZenFone AR (ZS571KL) | Xiaomi Redmi Note 9 Pro |
|---|
| Included Accessories | Power adapter, USB-C cable | Protective cover, SIM card removal tool, USB-C cable, 33W charger | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland Low Blue Light Certification |
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