In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and Xiaomi MI A2. 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 Zoom (ZX551ML) | Xiaomi MI A2 |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | ZX551ML | - | |
Form Factor | Touch | Touch | |
Height | 158.9 mm | 158.7 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than Xiaomi MI A2. |
Width | 78.8 mm | 75.4 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than Xiaomi MI A2. |
Depth | 12 mm | 7.3 mm | Xiaomi MI A2 is narrower than ASUS ZenFone Zoom (ZX551ML). |
Weight | 185 g | 168 g | Xiaomi MI A2 is lighter than ASUS ZenFone Zoom (ZX551ML). |
Body Colour | Ceramic white | Pure black | Black | Lake blue | Gold | |
Body Material | - | Metal | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | 0.639 W/kg (body), 0.963 W/kg (head) | |
Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C | |
SIM Card Type (Size) | Micro SIM | Nano SIM | |
SIM Card Qty | - | Dual-SIM |
DISPLAY | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Display Type | LCD display | LCD display | |
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Display Technology | IPS | IPS | |
Screen Size (Display Size) | 5.5" | 5.99" | Xiaomi MI A2 has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2160 x 1080 pixels | Xiaomi MI A2 has better screen resolution than ASUS ZenFone Zoom (ZX551ML). |
Display Format | Full HD | Full HD+ | |
Pixel Density | 401 ppi | 403 ppi | Xiaomi MI A2 has better pixel density than ASUS ZenFone Zoom (ZX551ML). |
Aspect Ratio | - | 18:9 | |
Colour Depth | 16.7 million colours | - | |
Contrast Ratio | - | 1500:1 | |
Display Features | - | 2.5D curved glass | |
Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Processor Type (CPU) | Intel Atom | Qualcomm Snapdragon 660 | |
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Processor Number | Z3590 | - | |
Clock Speed | 2.5 GHz | 2.2 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than Xiaomi MI A2. |
Processor Core Qty | Quad-core | 8-core | Xiaomi MI A2 has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
Graphics System (GPU) | PowerVR G6430 | - |
MEMORY | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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RAM | 4 GB | 4 GB | Both phones have the same RAM size. |
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Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
CAMERA | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 2 | |
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Sensor Resolution | 13 Megapixel | 20 Megapixel | Xiaomi MI A2 has better camera resolution than ASUS ZenFone Zoom (ZX551ML). |
Sensor Size | - | 1/2.8" | |
Sensor Name | - | Sony Exmor RS IMX376 sensor | |
Lens Aperture | F/2.7-4.8 | F/1.75 | Xiaomi MI A2 has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | ASUS ZenFone Zoom (ZX551ML) has optical stabilisation. |
Focus Adjustment | Automatic | Automatic | |
Laser Auto Focus | Yes | - | |
Digital Zoom | 3x | - | |
Special Effects | - | HDR, Beautify 4.0 | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Panorama | Burst mode, Panorama, portrait mode, AI portrait mode, group selfi mode, AI Beauty | |
Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
Light Source | Dual LED flash | LED light | |
Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 720 x 480 (480p) at 30 fps | |
Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), AI Dual camera, 4-in-1 Super Pixel |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
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Sensor Size (2nd Camera) | - | 1/2.9" | |
Sensor Name (2nd Camera) | - | Sony Exmor RS IMX486 sensor | |
Lens Aperture (2nd Camera) | - | F/1.75 |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 20 Megapixel | Xiaomi MI A2 has better front camera resolution than ASUS ZenFone Zoom (ZX551ML). |
Sensor Name (Front) | - | Sony Exmor RS IMX376 sensor | |
Lens Aperture (Front) | F/2.0 | F/2.2 | ASUS ZenFone Zoom (ZX551ML) has better front lens aperture than ASUS ZenFone Zoom (ZX551ML). |
Focus Adjustment | - | Automatic | |
Face Recognition (Face ID) | - | Face recognition | Xiaomi MI A2 has face detection. |
Camera Features (Front) | - | AI-powered portrait mode |
BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Battery Capacity (Battery Size) | 3000 mAh | 3010 mAh | Xiaomi MI A2 has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
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Fast Charging Technology | - | Qualcomm Quick Charge 3.0 | Xiaomi MI A2 has fast charging technology. |
Battery Technology | Lithium polymer | Lithium Ion |
CELLULAR | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 5.0 (Lollipop) | Android One | |
User Interface | ASUS ZenUI 2.0 | - | |
Intelligent Assistant | - | Google Assistant | |
Navigation | A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
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2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | |
Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
Bluetooth Profiles | A2DP | - | |
NFC | Yes | - | ASUS ZenFone Zoom (ZX551ML) has NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Supported Digital Audio Standards | - | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, MIDI, MP4, AMR-WB, AMR-NB | |
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Supported Digital Video Standards | - | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP |
FEATURES | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, vibration sensor | |
Security Devices | - | Fingerprint reader | |
Additional Phone Features | Multitasking | Wi-Fi Miracast, AI Engine |
OTHERS | ASUS ZenFone Zoom (ZX551ML) | Xiaomi MI A2 |
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Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, clear soft case, Type-C to audio converter |
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