In depth comparison and review of ASUS ZenFone 4 (A400CXG) and ASUS ZenFone Selfie (ZD551KL). 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 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | A400CXG | ZD551KL | |
| Form Factor | Touch | Touch | |
| Height | 124.42 mm | 156.5 mm | ASUS ZenFone Selfie (ZD551KL) has greater height than ASUS ZenFone 4 (A400CXG). |
| Width | 61.44 mm | 77.2 mm | ASUS ZenFone Selfie (ZD551KL) has greater width than ASUS ZenFone 4 (A400CXG). |
| Depth | 12.3 mm | 10.8 mm | ASUS ZenFone Selfie (ZD551KL) is narrower than ASUS ZenFone 4 (A400CXG). |
| Weight | 120 g | 170 g | ASUS ZenFone 4 (A400CXG) is lighter than ASUS ZenFone 4 (A400CXG). |
| Body Colour | Black | Glacial grey | Pure white | Aqua blue | Chic pink | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.386 W/kg (body), 0.649 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Micro SIM | |
| SIM Card Qty | - | Dual-SIM |
| DISPLAY | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | IPS | |
| Screen Size (Display Size) | 4" | 5.5" | ASUS ZenFone Selfie (ZD551KL) has larger screen size than ASUS ZenFone 4 (A400CXG). |
| Screen Resolution (Display Resolution) | 800 x 480 pixels | 1920 x 1080 pixels | ASUS ZenFone Selfie (ZD551KL) has better screen resolution than ASUS ZenFone 4 (A400CXG). |
| Display Format | - | Full HD | |
| Pixel Density | - | 403 ppi | |
| Colour Depth | - | 16.7 million colours | |
| Display Protection (Screen Protector) | - | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Processor Type (CPU) | Intel Atom | Qualcomm Snapdragon 616 | |
|---|---|---|---|
| Processor Number | Z2520 | - | |
| Clock Speed | 1.2 GHz | - | |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | - | Yes | ASUS ZenFone Selfie (ZD551KL) has 64-bit architecture. |
| Graphics System (GPU) | PowerVR SGX544MP2 | - |
| MEMORY | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| RAM | 1 GB | 2 GB | ASUS ZenFone Selfie (ZD551KL) has more RAM than ASUS ZenFone 4 (A400CXG). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 8 GB | 16 GB | ASUS ZenFone Selfie (ZD551KL) has more internal memory than ASUS ZenFone 4 (A400CXG). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 64 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 5 Megapixel | 13 Megapixel | ASUS ZenFone Selfie (ZD551KL) has better camera resolution than ASUS ZenFone 4 (A400CXG). |
| Lens Aperture | F/2.4 | F/2.0 | ASUS ZenFone Selfie (ZD551KL) has better lens aperture than ASUS ZenFone 4 (A400CXG). |
| Focus Adjustment | - | Automatic | |
| Laser Auto Focus | - | Yes | |
| HDR Mode | - | Super HDR | |
| Camera Modes | - | Beauty mode | |
| Face Recognition (Face ID) | - | Face detection | ASUS ZenFone Selfie (ZD551KL) has face detection. |
| Light Source | - | Dual LED flash | |
| Still Image Resolutions | - | 4128 x 3096 | |
| Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p) | 1920 x 1080 (1080p) | |
| Camera Features (Functions) | - | ZenMotion |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 0.3 Megapixel | 13 Megapixel | ASUS ZenFone Selfie (ZD551KL) has better front camera resolution than ASUS ZenFone 4 (A400CXG). |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.8 | F/2.2 | ASUS ZenFone Selfie (ZD551KL) has better front lens aperture than ASUS ZenFone 4 (A400CXG). |
| Focus Adjustment | - | Automatic | |
| Camera Modes (Front) | - | Panoramic selfies | |
| Light Source (Front) | - | LED flash |
| BATTERY AND CHARGING | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Battery Capacity (Battery Size) | 1600 mAh | 3000 mAh | ASUS ZenFone Selfie (ZD551KL) has larger battery capacity than ASUS ZenFone 4 (A400CXG). |
|---|---|---|---|
| Standby Time | 295.69 hours | 255 hours | ASUS ZenFone 4 (A400CXG) has longer standby time than ASUS ZenFone Selfie (ZD551KL). |
| Talk Time | 770 minutes | 1386 minutes | ASUS ZenFone Selfie (ZD551KL) has longer battery life when making calls than ASUS ZenFone 4 (A400CXG). |
| Run Time Details | Talk (WCDMA): up to 770 hrs Continuous browsing (WCDMA): up to 4.4 hrs Continuous browsing (Wi-Fi): up to 7.13 hrs Playback (video): up to 4.99 hrs Standby (WCDMA): up to 295.69 hrs |
Talk: up to 1386 min Standby: up to 255 hrs |
|
| Battery Technology | Lithium polymer | Lithium polymer |
| CELLULAR | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | ASUS ZenFone Selfie (ZD551KL) has more advanced generation mobile network. |
| Operating System | Android 4.3 (Jelly Bean) | Android 5.0 (Lollipop) | |
| User Interface | ASUS ZenUI | ASUS ZenUI | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, 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 5, Band 7, Band 8, Band 20 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | |
| Bluetooth Profiles | A2DP | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Supported Digital Audio Standards | AAC, MP3, AAC +, OGG | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, 3GP, H.264 | - |
| FEATURES | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
|---|---|---|---|
| Sensors | Proximity sensor, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor | |
| Additional Phone Features | ASUS SonicMaster technology, guaranteed upgrade to Android 4.4 (KitKat) | ASUS TruVivid technology |
| OTHERS | ASUS ZenFone 4 (A400CXG) | ASUS ZenFone Selfie (ZD551KL) |
|---|
| Included Accessories | USB cable, power adapter | Power adapter |
|---|
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