In depth comparison and review of HTC One (A9) and ASUS ZenFone Zoom (ZX551ML). 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 | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZX551ML | |
| Form Factor | Touch | Touch | |
| Height | 145.75 mm | 158.9 mm | ASUS ZenFone Zoom (ZX551ML) has greater height than HTC One (A9). |
| Width | 70.8 mm | 78.8 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than HTC One (A9). |
| Depth | 7.26 mm | 12 mm | HTC One (A9) is narrower than HTC One (A9). |
| Weight | 143 g | 185 g | HTC One (A9) is lighter than HTC One (A9). |
| Body Colour | Topaz gold | Opal silver | Carbon grey | Ceramic white | Pure black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.41 W/kg | 0.432 W/kg (body), 0.343 W/kg (head) | |
| Integrated Components | FM radio | - | |
| 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) | Nano SIM | Micro SIM |
| DISPLAY | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | IPS | |
| Screen Size (Display Size) | 5" | 5.5" | ASUS ZenFone Zoom (ZX551ML) has larger screen size than HTC One (A9). |
| 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 | 440 ppi | 401 ppi | HTC One (A9) has better pixel density than ASUS ZenFone Zoom (ZX551ML). |
| Colour Depth | - | 16.7 million colours | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 4 (scratch resistant glass) |
| PROCESSOR | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 617 | Intel Atom | |
|---|---|---|---|
| Processor Number | - | Z3590 | |
| Clock Speed | 1.5 GHz | 2.5 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than HTC One (A9). |
| Processor Core Qty | 8-core | Quad-core | HTC One (A9) has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
| 64-bit Architecture | Yes | - | HTC One (A9) has 64-bit architecture. |
| Graphics System (GPU) | - | PowerVR G6430 |
| MEMORY | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| RAM | 2 GB | 4 GB | ASUS ZenFone Zoom (ZX551ML) has more RAM than HTC One (A9). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | ASUS ZenFone Zoom (ZX551ML) has more internal memory than HTC One (A9). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Sensor Type | BSI-CMOS | - | |
| Lens Aperture | F/2.0 | F/2.7-4.8 | HTC One (A9) has better lens aperture than HTC One (A9). |
| 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 | Pro mode | Panorama | |
| Face Recognition (Face ID) | - | Face detection | ASUS ZenFone Zoom (ZX551ML) has face detection. |
| Light Source | LED light | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) | |
| Camera Features (Functions) | Sapphire crystal lens cover | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 4 Megapixel | 5 Megapixel | ASUS ZenFone Zoom (ZX551ML) has better front camera resolution than HTC One (A9). |
| 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) | - | |
| Camera Features (Front) | HTC UltraPixel Camera | - |
| BATTERY AND CHARGING | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Battery Capacity (Battery Size) | 2150 mAh | 3000 mAh | ASUS ZenFone Zoom (ZX551ML) has larger battery capacity than HTC One (A9). |
|---|---|---|---|
| Standby Time | 432 hours | - | |
| Talk Time | 960 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 960 min Standby (WCDMA): up to 432 hrs Active online usage (Wi-Fi): up to 9 hrs Playback (audio): up to 60 hrs Playback (video): up to 12 hrs |
- | |
| Battery Technology | Lithium polymer | Lithium polymer |
| CELLULAR | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | Android 5.0 (Lollipop) | |
| User Interface | HTC Sense | ASUS ZenUI 2.0 | |
| Navigation | GPS, GLONASS | A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 4.0 | |
| Bluetooth Profiles | - | A2DP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, M4A, EC3 | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, AVI, MPEG-4, WMV, 3GP, 3G2 | - | |
| Sound Enhancements | Dolby sound technology | - |
| FEATURES | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, call timer, conference call, vibrating alert | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor | Accelerometer, proximity sensor, digital compass, gyro sensor | |
| Security Devices | Fingerprint reader | - | |
| Additional Phone Features | DLNA Certified, HTC BlinkFeed, Hi-Res Audio, Android Sensor Hub | Multitasking |
| OTHERS | HTC One (A9) | ASUS ZenFone Zoom (ZX551ML) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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