In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and Razer Phone 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) | Razer Phone 2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZX551ML | - | |
| Form Factor | Touch | Touch | |
| Height | 158.9 mm | 158.5 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than Razer Phone 2. |
| Width | 78.8 mm | 78.99 mm | Razer Phone 2 has greater width than ASUS ZenFone Zoom (ZX551ML). |
| Depth | 12 mm | 8.5 mm | Razer Phone 2 is narrower than ASUS ZenFone Zoom (ZX551ML). |
| Weight | 185 g | - | |
| Body Colour | Ceramic white | Pure black | Satin black | Mirror black | |
| Protection | - | Waterproof | |
| Waterproof (Water-resistant) | - | Yes | Razer Phone 2 is waterproof. |
| IP rating | - | IP67 | |
| SAR Value | 0.432 W/kg (body), 0.343 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 | - | |
| SIM Card Qty | - | Single-SIM |
| DISPLAY | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IGZO (Indium Gallium Zinc Oxide) | |
| Screen Size (Display Size) | 5.5" | 5.72" | Razer Phone 2 has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2560 x 1440 pixels | Razer Phone 2 has better screen resolution than ASUS ZenFone Zoom (ZX551ML). |
| Display Format | Full HD | QHD | |
| Pixel Density | 401 ppi | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | - | Yes | Razer Phone 2 has HDR. |
| Display Features | - | UltraMotion technology, Wide Colour Gamut (WCG), Vapor Chamber Cooling | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Processor Type (CPU) | Intel Atom | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Processor Number | Z3590 | - | |
| Clock Speed | 2.5 GHz | 2.8 GHz | Razer Phone 2 has higher clock speed than ASUS ZenFone Zoom (ZX551ML). |
| Processor Core Qty | Quad-core | - | |
| 64-bit Architecture | - | Yes | Razer Phone 2 has 64-bit architecture. |
| Graphics System (GPU) | PowerVR G6430 | Qualcomm ADRENO 630 |
| MEMORY | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| RAM | 4 GB | 8 GB | Razer Phone 2 has more RAM than ASUS ZenFone Zoom (ZX551ML). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Razer Phone 2 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 1 TB |
| CAMERA | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | ASUS ZenFone Zoom (ZX551ML) has better camera resolution than Razer Phone 2. |
| Sensor Name | - | Sony Exmor RS IMX363 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.7-4.8 | F/1.75 | Razer Phone 2 has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Digital Zoom | 3x | - | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | - | |
| 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) | 3840 x 2160 (4K) | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX351 sensor | |
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.6 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | Razer Phone 2 has better front camera resolution than ASUS ZenFone Zoom (ZX551ML). |
| Sensor Name (Front) | - | Samsung 3H7 | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | - | Focus free | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) |
| BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | Razer Phone 2 has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | Razer Phone 2 has fast charging technology. |
| Wireless Charging | - | Yes | Razer Phone 2 can be charged wirelessly. |
| Wireless Charging Standards | - | Qi | |
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Technology | WCDMA (UMTS) / GSM | TD-SCDMA / WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0 (Lollipop) | Android 8.1 Oreo | |
| User Interface | ASUS ZenUI 2.0 | - | |
| Navigation | A-GPS, GLONASS, BeiDou | - |
| COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1800, 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 12, Band 13, Band 14, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 29, Band 30, Band 32, Band 66, Band 71 | |
| 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 700a, FDD 700c, FDD 700 PS, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, FDD 1500 L, FDD 1700 - 2110 AWS-3, FDD 600 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | 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) | Razer Phone 2 |
|---|
| Sound Enhancements | - | Dolby Atmos sound technology |
|---|
| FEATURES | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 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 | - | |
| Additional Phone Features | Multitasking | MIMO technology |
| OTHERS | ASUS ZenFone Zoom (ZX551ML) | Razer Phone 2 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, USB-C audio adapter, Quick charger | |
|---|---|---|---|
| Compliant Standards | - | IP67 | |
| Max Depth of Water Resistance | - | 1 m |
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