In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and ASUS ZenFone 5 (ZE620KL). 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) | ASUS ZenFone 5 (ZE620KL) |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | ZX551ML | ZE620KL | |
Form Factor | Touch | Touch | |
Height | 158.9 mm | 153 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than ASUS ZenFone 5 (ZE620KL). |
Width | 78.8 mm | 75.65 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than ASUS ZenFone 5 (ZE620KL). |
Depth | 12 mm | 7.7 mm | ASUS ZenFone 5 (ZE620KL) is narrower than ASUS ZenFone Zoom (ZX551ML). |
Weight | 185 g | 155 g | ASUS ZenFone 5 (ZE620KL) is lighter than ASUS ZenFone Zoom (ZX551ML). |
Body Colour | Ceramic white | Pure black | Midnight blue | |
Body Material | - | Aluminium | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | - | |
Integrated Components | - | FM radio | |
Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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SIM Card Type (Size) | Micro SIM | Nano SIM | |
SIM Card Qty | - | Dual-SIM | |
SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
DISPLAY | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Display Type | LCD display | LCD display | |
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Display Technology | IPS | IPS+ | |
Screen Size (Display Size) | 5.5" | 6.2" | ASUS ZenFone 5 (ZE620KL) has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2246 x 1080 pixels | ASUS ZenFone 5 (ZE620KL) has better screen resolution than ASUS ZenFone Zoom (ZX551ML). |
Display Format | Full HD | - | |
Pixel Density | 401 ppi | 402 ppi | ASUS ZenFone 5 (ZE620KL) has better pixel density than ASUS ZenFone Zoom (ZX551ML). |
Aspect Ratio | - | 18:5:9 | |
Max Brightness | - | 550 cd/m² | |
Colour Depth | 16.7 million colours | - | |
Display Enhancement Technology | - | Bluelight Filter for Eye Care | |
Display Features | - | DCI-P3 Wide colour gamut, Auto Colour Temperature, Smart Screen On | |
Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating |
PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Processor Type (CPU) | Intel Atom | Qualcomm Snapdragon 636 | |
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Processor Number | Z3590 | - | |
Clock Speed | 2.5 GHz | 1.8 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than ASUS ZenFone 5 (ZE620KL). |
Processor Core Qty | Quad-core | 8-core | ASUS ZenFone 5 (ZE620KL) has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
64-bit Architecture | - | Yes | ASUS ZenFone 5 (ZE620KL) has 64-bit architecture. |
Graphics System (GPU) | PowerVR G6430 | Qualcomm ADRENO 509 |
MEMORY | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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RAM | 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
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Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | ASUS ZenFone 5 (ZE620KL) has more internal memory than ASUS ZenFone Zoom (ZX551ML). |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 2 TB |
CAMERA | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 2 | |
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Sensor Resolution | 13 Megapixel | 12 Megapixel | ASUS ZenFone Zoom (ZX551ML) has better camera resolution than ASUS ZenFone 5 (ZE620KL). |
Sensor Size | - | 1/2.55" | |
Sensor Name | - | Sony Exmor RS IMX363 sensor | |
Lens Aperture | F/2.7-4.8 | F/1.8 | ASUS ZenFone 5 (ZE620KL) has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
Lens Construction | - | 6-element | |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | Both phones have optical image stabilization. |
Focus Adjustment | Automatic | - | |
Laser Auto Focus | Yes | - | |
Digital Zoom | 3x | - | |
Special Effects | - | Night HDR | |
HDR Mode | Auto HDR mode | Auto HDR mode | |
Camera Modes | Panorama | Panorama, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, Real-Time Beautification, Real-time Protrait, Time Lapse (with power saving mode) | |
Face Recognition (Face ID) | Face detection | - | ASUS ZenFone Zoom (ZX551ML) has face detection. |
Light Source | Dual LED flash | LED flash | |
Video Resolutions | 1920 x 1080 (1080p) | 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 | |
Camera Features (Functions) | - | Dual Pixel technology, Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, RAW image capture, 4-axis optical image stabilisation, Instant cameras switching, Live Emoji, 8 filters, AI Photo Learning, 32s long exposure |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
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Lens Type (2nd Camera) | - | Wide-angle lens | |
Camera Features (2nd Camera) | - | 3-axis electronic image stabilisation |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | ASUS ZenFone 5 (ZE620KL) has better front camera resolution than ASUS ZenFone Zoom (ZX551ML). |
Lens Type (Front) | - | Wide-angle lens | |
Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
Special Effects (Front) | - | Night HDR | |
HDR Mode (Front) | - | Auto HDR mode | |
Camera Modes (Front) | - | Beauty mode, Auto mode, selfie panorama, GIF animation function | |
Camera Features (Front) | - | PixelMaster camera, Electronic Image Stabiliser (EIS), 8 filters |
BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Battery Capacity (Battery Size) | 3000 mAh | 3300 mAh | ASUS ZenFone 5 (ZE620KL) has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
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Fast Charging Technology | - | BoostMaster Fast Charging | ASUS ZenFone 5 (ZE620KL) has fast charging technology. |
Battery Technology | Lithium polymer | Lithium polymer |
CELLULAR | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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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 9.0 Pie | |
User Interface | ASUS ZenUI 2.0 | ASUS ZenUI 5.0 | |
Navigation | A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE, DC-HSPA+ | |
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2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | - | |
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 | - | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11ac | |
Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
Bluetooth Profiles | A2DP | A2DP | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Sound Enhancements | - | ASUS BoostMaster technology, Hi-Res audio, DTS Headphone:X |
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FEATURES | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor, RGB sensor | |
Security Devices | - | Face recognition, fingerprint reader | |
Additional Phone Features | Multitasking | Face Unlock, AudioWizard, NXP Smart AMP technology, ASUS Noise Reduction technology, Google Drive Storage (100 GB) (free for 1 year), Dual Smart AMP, Dual noise-cancelling microphones, AI Charging, AI Boost, ZeniMoji |
OTHERS | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 5 (ZE620KL) |
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Included Accessories | Power adapter | Power adapter, USB-C cable, ASUS ZenEar S Hi-Res earphone with microphone |
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