Side by side comparison and review of ASUS ZenFone 4 and ASUS ZenFone 2 (ZE550ML). 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 ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZE550ML | |
| Form Factor | Touch | Touch | |
| Height | 124.42 mm | 152.5 mm | ASUS ZenFone 2 (ZE550ML) has greater height than ASUS ZenFone 4. |
| Width | 61.44 mm | 77.2 mm | ASUS ZenFone 2 (ZE550ML) has greater width than ASUS ZenFone 4. |
| Depth | 11.5 mm | 10.9 mm | ASUS ZenFone 2 (ZE550ML) is narrower than ASUS ZenFone 4. |
| Weight | 115 g | 170 g | ASUS ZenFone 4 is lighter than ASUS ZenFone 4. |
| Body Colour | Cherry Red | Yellow | Blue | Pearl white | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.53 W/kg | - | |
| 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 | Dual-SIM |
| DISPLAY | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | IPS | |
| Screen Size (Display Size) | 4" | 5.5" | ASUS ZenFone 2 (ZE550ML) has larger screen size than ASUS ZenFone 4. |
| Screen Resolution (Display Resolution) | 800 x 480 pixels | 1280 x 720 pixels | ASUS ZenFone 2 (ZE550ML) has better screen resolution than ASUS ZenFone 4. |
| Display Format | - | HD | |
| Pixel Density | - | 267 ppi | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Processor Type (CPU) | Intel Atom | Intel Atom | |
|---|---|---|---|
| Processor Number | Z2520 | Z3560 | |
| Clock Speed | 1.2 GHz | 1.8 GHz | ASUS ZenFone 2 (ZE550ML) has higher clock speed than ASUS ZenFone 4. |
| Processor Core Qty | - | Quad-core | |
| Graphics System (GPU) | - | PowerVR G6430 |
| MEMORY | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| RAM | 1 GB | 2 GB | ASUS ZenFone 2 (ZE550ML) has more RAM than ASUS ZenFone 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 8 GB | 16 GB | ASUS ZenFone 2 (ZE550ML) has more internal memory than ASUS ZenFone 4. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 64 GB | microSDHC, microSDXC - up to 64 GB |
| CAMERA | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 5 Megapixel | 13 Megapixel | ASUS ZenFone 2 (ZE550ML) has better camera resolution than ASUS ZenFone 4. |
| Lens Aperture | - | F/2.0 | |
| Focus Adjustment | - | Automatic | |
| HDR Mode | - | Auto HDR mode | |
| Light Source | - | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p) | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 0 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | - | 5 Megapixel |
| BATTERY AND CHARGING | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Battery Capacity (Battery Size) | - | 3000 mAh | |
|---|---|---|---|
| Standby Time | 192 hours | - | |
| Talk Time | 606 minutes | - | |
| Run Time Details | Talk: up to 606 hrs Standby: up to 192 hrs |
- | |
| Battery Technology | Lithium | Lithium polymer |
| CELLULAR | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | ASUS ZenFone 2 (ZE550ML) has more advanced generation mobile network. |
| Operating System | Android 4.3 (Jelly Bean) | Android 5.0 (Lollipop) | |
| User Interface | ASUS ZenUI | ASUS ZenUI 2.0 | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS |
| COMMUNICATIONS | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, DC-HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, DC-HSPA+ | |
|---|---|---|---|
| 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 20 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | |
| Bluetooth Profiles | A2DP | - | |
| Communication Features | Mobile Email client, Internet browser | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Supported Digital Audio Standards | AAC, MP3, AAC + | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, 3GP, H.264 | - |
| FEATURES | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, call timer, conference call, vibrating alert | |
|---|---|---|---|
| Sensors | Proximity sensor, motion sensor | Ambient light sensor, proximity sensor, digital compass, G-sensor | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Dual SIM Card Capability | Yes | Yes | |
| Additional Phone Features | ASUS SonicMaster technology, guaranteed upgrade to Android 4.4 (KitKat) | OpenGL 3.0 support |
| OTHERS | ASUS ZenFone 4 | ASUS ZenFone 2 (ZE550ML) |
|---|
| Included Accessories | Power adapter | Headset, power adapter |
|---|
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