Side by side comparison and review of ASUS PadFone A66 and ASUS ZenFone 2 (ZE551ML). 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 PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | - | ZE551ML | |
Form Factor | Touch | Touch | |
Height | 128 mm | 152.5 mm | ASUS ZenFone 2 (ZE551ML) has greater height than ASUS PadFone A66. |
Width | 65 mm | 77.2 mm | ASUS ZenFone 2 (ZE551ML) has greater width than ASUS PadFone A66. |
Depth | 9 mm | 10.9 mm | ASUS PadFone A66 is narrower than ASUS PadFone A66. |
Weight | 129 g | 170 g | ASUS PadFone A66 is lighter than ASUS PadFone A66. |
Body Colour | Brown | Grey | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.75 W/kg (body), 0.42 W/kg (head) | 0.87 W/kg (body), 0.92 W/kg (head) | |
Connector Type | Headset jack - mini-phone 3.5mm HDMI Micro-USB - 5 pin Micro-USB Type B |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
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SIM Card Type (Size) | - | Micro SIM | |
SIM Card Qty | - | Dual-SIM |
DISPLAY | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Display Type | OLED display | LCD display | |
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Display Technology | Super AMOLED | IPS | |
Screen Size (Display Size) | 4.3" | 5.5" | ASUS ZenFone 2 (ZE551ML) has larger screen size than ASUS PadFone A66. |
Screen Resolution (Display Resolution) | 960 x 540 pixels | 1920 x 1080 pixels | ASUS ZenFone 2 (ZE551ML) has better screen resolution than ASUS PadFone A66. |
Display Format | - | Full HD | |
Pixel Density | - | 400 ppi | |
Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) |
PROCESSOR | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Processor Type (CPU) | Qualcomm | Intel Atom | |
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Processor Number | MSM8260A | Z3560 | |
Clock Speed | 1.5 GHz | 1.83 GHz | ASUS ZenFone 2 (ZE551ML) has higher clock speed than ASUS PadFone A66. |
Processor Core Qty | Dual-core | Quad-core | ASUS ZenFone 2 (ZE551ML) has higher processor core quantity than ASUS PadFone A66. |
64-bit Architecture | - | Yes | ASUS ZenFone 2 (ZE551ML) has 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 225 | PowerVR G6430 |
MEMORY | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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RAM | 1 GB | 2 GB | ASUS ZenFone 2 (ZE551ML) has more RAM than ASUS PadFone A66. |
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Internal Memory Size (Storage Capacity) | 16 GB | 16 GB | Both phones have the same internal memory capacity. |
Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSDXC - up to 64 GB |
CAMERA | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 1 | |
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Sensor Resolution | 8 Megapixel | 13 Megapixel | ASUS ZenFone 2 (ZE551ML) has better camera resolution than ASUS PadFone A66. |
Lens Aperture | F/2.2 | F/2.0 | ASUS ZenFone 2 (ZE551ML) has better lens aperture than ASUS PadFone A66. |
Focus Adjustment | Automatic | Automatic | |
HDR Mode | - | Super HDR | |
Camera Modes | - | Panoramic pictures, night mode, wide selfie mode, Beauty mode | |
Face Recognition (Face ID) | - | Face detection | ASUS ZenFone 2 (ZE551ML) has face detection. |
Light Source | LED light | Dual LED flash | |
Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) | |
Camera Features (Functions) | - | Zero Shutter Lag, Blue Glass Infrared Filter, By Pixel Super Resolution technology |
FRONT CAMERA |
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Number of Front Cameras | 0 | 1 | |
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Sensor Resolution (Front) | - | 5 Megapixel |
BATTERY AND CHARGING | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Battery Capacity (Battery Size) | 1520 mAh | 3000 mAh | ASUS ZenFone 2 (ZE551ML) has larger battery capacity than ASUS PadFone A66. |
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Standby Time | 370 hours | - | |
Talk Time | 940 minutes | - | |
Run Time Details | Talk (GSM): up to 940 min Standby (GSM): up to 370 hrs Talk (WCDMA): up to 480 min Standby (WCDMA): up to 360 hrs |
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Battery Technology | Lithium Ion | Lithium polymer |
CELLULAR | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 3G | 4G | ASUS ZenFone 2 (ZE551ML) has more advanced generation mobile network. |
Operating System | Android 4.0 (Ice Cream Sandwich) | Android 5.0 (Lollipop) | |
User Interface | - | ASUS ZenUI | |
Navigation | A-GPS | GPS, A-GPS, GLONASS, BeiDou |
COMMUNICATIONS | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
4G LTE Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 17, Band 20 | |
4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700b, FDD 800 DD | |
Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | |
NFC | - | Yes | ASUS ZenFone 2 (ZE551ML) has NFC reader for mobile payments. |
Communication Features | Mobile Email client, Internet browser | - | |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Supported Digital Audio Standards | WMA, AAC, MP3, AAC + | - | |
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Supported Digital Video Standards | MPEG-4, WMV, 3GP, H.264, H.263 | - |
FEATURES | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
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Sensors | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | |
Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
Additional Phone Features | DynamicDisplay technology | Kids Mode, Glove Touchscreen Operation, ASUS BoostMaster technology |
OTHERS | ASUS PadFone A66 | ASUS ZenFone 2 (ZE551ML) |
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Included Accessories | Power adapter | Headset, power adapter |
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