In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and ASUS ZenFone 2. 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 2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZX551ML | - | |
| Form Factor | Touch | Touch | |
| Height | 158.9 mm | 152.5 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than ASUS ZenFone 2. |
| Width | 78.8 mm | 77.2 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than ASUS ZenFone 2. |
| Depth | 12 mm | 10.9 mm | ASUS ZenFone 2 is narrower than ASUS ZenFone Zoom (ZX551ML). |
| Weight | 185 g | 170 g | ASUS ZenFone 2 is lighter than ASUS ZenFone Zoom (ZX551ML). |
| Body Colour | Ceramic white | Pure black | Osmium Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | 0.87 W/kg (body), 0.92 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Headset jack - mini-phone 3.5mm USB |
|
| SIM Card Type (Size) | Micro SIM | Micro SIM | |
| SIM Card Qty | - | Dual-SIM |
| DISPLAY | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IPS | |
| Screen Size (Display Size) | 5.5" | 5.5" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1920 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD | Full HD | |
| Pixel Density | 401 ppi | 400 ppi | ASUS ZenFone Zoom (ZX551ML) has better pixel density than ASUS ZenFone 2. |
| Colour Depth | 16.7 million colours | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Processor Type (CPU) | Intel Atom | Intel Atom | |
|---|---|---|---|
| Processor Number | Z3590 | Z3580 | |
| Clock Speed | 2.5 GHz | 2.3 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than ASUS ZenFone 2. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | ASUS ZenFone 2 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR G6430 | PowerVR G6430 |
| MEMORY | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| RAM | 4 GB | 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| 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 | microSDHC, microSDXC - up to 64 GB |
| CAMERA | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Aperture | F/2.7-4.8 | F/2.0 | ASUS ZenFone 2 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 | - | |
| HDR Mode | Auto HDR mode | Super HDR | |
| Camera Modes | Panorama | Panoramic pictures, night mode, wide selfie mode, Beauty mode | |
| Face Recognition (Face ID) | Face detection | - | ASUS ZenFone Zoom (ZX551ML) has face detection. |
| Light Source | Dual LED flash | 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 |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.0 | - | |
| Focus Adjustment | - | Automatic |
| BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 3000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Battery Technology | Lithium polymer | Lithium polymer |
| CELLULAR | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0 (Lollipop) | Android 5.0 (Lollipop) | |
| User Interface | ASUS ZenUI 2.0 | ASUS ZenUI | |
| Navigation | A-GPS, GLONASS, BeiDou | A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE | |
|---|---|---|---|
| 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 | 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 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 700b, FDD 800 DD | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | |
| Bluetooth Profiles | A2DP | A2DP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| FEATURES | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | |
| Additional Phone Features | Multitasking | Kids Mode, Glove Touchscreen Operation, ASUS BoostMaster technology |
| OTHERS | ASUS ZenFone Zoom (ZX551ML) | ASUS ZenFone 2 |
|---|
| Included Accessories | Power adapter | Headset, power adapter |
|---|
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