In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and HTC One A9S. 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) | HTC One A9S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZX551ML | - | |
| Form Factor | Touch | Touch | |
| Height | 158.9 mm | 146.49 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than HTC One A9S. |
| Width | 78.8 mm | 71.5 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than HTC One A9S. |
| Depth | 12 mm | 7.99 mm | HTC One A9S is narrower than ASUS ZenFone Zoom (ZX551ML). |
| Weight | 185 g | 150 g | HTC One A9S is lighter than ASUS ZenFone Zoom (ZX551ML). |
| Body Colour | Ceramic white | Pure black | - | |
| Body Material | - | Metal | |
| Waterproof (Water-resistant) | - | - | |
| 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 |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | - | Single-SIM |
| DISPLAY | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | Super LCD | |
| Screen Size (Display Size) | 5.5" | 5" | ASUS ZenFone Zoom (ZX551ML) has larger screen size than HTC One A9S. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1280 x 720 pixels | ASUS ZenFone Zoom (ZX551ML) has better screen resolution than HTC One A9S. |
| Display Format | Full HD | HD | |
| Pixel Density | 401 ppi | 294 ppi | ASUS ZenFone Zoom (ZX551ML) has better pixel density than HTC One A9S. |
| Colour Depth | 16.7 million colours | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Processor Type (CPU) | Intel Atom | MediaTek Helio P10 | |
|---|---|---|---|
| Processor Number | Z3590 | - | |
| Clock Speed | 2.5 GHz | - | |
| Processor Core Qty | Quad-core | 8-core | HTC One A9S has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
| 64-bit Architecture | - | Yes | HTC One A9S has 64-bit architecture. |
| Graphics System (GPU) | PowerVR G6430 | - |
| MEMORY | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| RAM | 4 GB | 2 GB | ASUS ZenFone Zoom (ZX551ML) has more RAM than HTC One A9S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 16 GB | ASUS ZenFone Zoom (ZX551ML) has more internal memory than HTC One A9S. |
| User Memory | - | 10.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Sensor Type | - | BSI | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.7-4.8 | F/2.2 | HTC One A9S 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 | - | |
| Minimum Focal Length (Focal Distance) | - | 28.3 mm | |
| Digital Zoom | 3x | - | |
| Self-Timer Delay | - | 0 - 10 sec | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | Panorama, Pro mode, HYPERLAPSE, RAW mode | |
| Face Recognition (Face ID) | Face detection | Face detection | Both phones have face detection. |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | Sapphire crystal lens cover, HTC Zoe, Video Pic |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Sensor Type (Front) | - | BSI | |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/2.8 | ASUS ZenFone Zoom (ZX551ML) has better front lens aperture than ASUS ZenFone Zoom (ZX551ML). |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | - | Live make-up | |
| Camera Modes (Front) | - | Auto selfie (smile selfie, still selfie) | |
| Face Recognition (Face ID) | - | Face detection | HTC One A9S has face detection. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Front) | - | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds |
| BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 2300 mAh | ASUS ZenFone Zoom (ZX551ML) has larger battery capacity than HTC One A9S. |
|---|---|---|---|
| Standby Time | - | 432 hours | |
| Talk Time | - | 786.6 minutes | |
| Run Time Details | - | Talk (WCDMA): up to 786.6 min Standby (WCDMA): up to 432 hrs |
|
| Battery Technology | Lithium polymer | Lithium polymer |
| CELLULAR | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| 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 6.0 (Marshmallow) | |
| User Interface | ASUS ZenUI 2.0 | HTC Sense | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, GLONASS |
| COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-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 3, Band 7, Band 8, 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 1800+, FDD 2600, FDD 900, FDD 800 DD | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Supported Digital Audio Standards | - | WAV, MP3, OGG, MKA, M4A, 3GA, MP4, MID | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, AVI, MPEG-4, WMV, 3GP, TS, WebM, 3G2 | |
| Sound Enhancements | - | HTC BoomSound |
| FEATURES | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| 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, magnetometer, G-sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | Multitasking | Wi-Fi Miracast, Dual microphones, HTC Connect, HTC Freestyle Layout |
| OTHERS | ASUS ZenFone Zoom (ZX551ML) | HTC One A9S |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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