Detailed comparison and review of ASUS ZenFone 3 Ultra (ZU680KL) and HTC Desire 825. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZU680KL | - | |
| Form Factor | Touch | Touch | |
| Height | 186.4 mm | 156.9 mm | ASUS ZenFone 3 Ultra (ZU680KL) has greater height than HTC Desire 825. |
| Width | 93.9 mm | 76.9 mm | ASUS ZenFone 3 Ultra (ZU680KL) has greater width than HTC Desire 825. |
| Depth | 6.8 mm | 7.4 mm | ASUS ZenFone 3 Ultra (ZU680KL) is narrower than ASUS ZenFone 3 Ultra (ZU680KL). |
| Weight | 233 g | 155 g | HTC Desire 825 is lighter than ASUS ZenFone 3 Ultra (ZU680KL). |
| Body Colour | Rose gold | Titanium grey | Glacier silver | - | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.377 W/kg | |
| Integrated Components | FM radio | - | |
| Connector Type | HDMI - 19 pin micro HDMI Type D USB Type-C - 24 pin USB-C |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | - | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | Super LCD | |
| Screen Size (Display Size) | 6.8" | 5.5" | ASUS ZenFone 3 Ultra (ZU680KL) has larger screen size than HTC Desire 825. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1280 x 720 pixels | ASUS ZenFone 3 Ultra (ZU680KL) has better screen resolution than HTC Desire 825. |
| Display Format | Full HD | HD | |
| Pixel Density | - | 267 ppi | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | Full Lamination, ASUS Tru2Life+ | Display colour personalisation | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 652 | Qualcomm Snapdragon 400 | |
|---|---|---|---|
| Clock Speed | 1.8 GHz | 1.6 GHz | ASUS ZenFone 3 Ultra (ZU680KL) has higher clock speed than HTC Desire 825. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | ASUS ZenFone 3 Ultra (ZU680KL) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 510 | - |
| MEMORY | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| RAM | 3 GB | 2 GB | ASUS ZenFone 3 Ultra (ZU680KL) has more RAM than HTC Desire 825. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 16 GB | ASUS ZenFone 3 Ultra (ZU680KL) has more internal memory than HTC Desire 825. |
| User Memory | - | 10.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 200 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 13 Megapixel | ASUS ZenFone 3 Ultra (ZU680KL) has better camera resolution than HTC Desire 825. |
| Sensor Type | - | BSI-CMOS | |
| Lens Aperture | F/2.0 | F/2.2 | ASUS ZenFone 3 Ultra (ZU680KL) has better lens aperture than ASUS ZenFone 3 Ultra (ZU680KL). |
| Lens Construction | 6-element | - | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 3 Ultra (ZU680KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Special Effects | Depth of field | - | |
| HDR Mode | Auto HDR mode | Auto HDR mode | |
| Camera Modes | Panorama, Time-lapse mode, night mode, manual mode, Real time beauty mode, super resolution mode, All Smiles mode, Mini mode | Panorama, Continuous shot | |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | - | |
| Camera Features (Functions) | Sapphire crystal lens cover, GIF animation function, Phase Detect Auto-Focus (PDAF), ZenMotion, Smart Remove, Electronic Image Stabiliser (EIS), MiniMovie, Time Rewind | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | ASUS ZenFone 3 Ultra (ZU680KL) has better front camera resolution than HTC Desire 825. |
| Sensor Type (Front) | - | BSI-CMOS | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.8 | ASUS ZenFone 3 Ultra (ZU680KL) has better front lens aperture than ASUS ZenFone 3 Ultra (ZU680KL). |
| Focus Adjustment | Focus free | - | |
| HDR Mode (Front) | Auto HDR mode | Auto HDR mode | |
| Camera Modes (Front) | Slow motion video, night mode, selfie panorama | Tap to focus, Auto selfie (smile selfie, still selfie) | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) | |
| Camera Features (Front) | PixelMaster camera | Voice selfie, Self timer up to 10 seconds |
| BATTERY AND CHARGING | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Battery Capacity (Battery Size) | 4600 mAh | 2700 mAh | ASUS ZenFone 3 Ultra (ZU680KL) has larger battery capacity than HTC Desire 825. |
|---|---|---|---|
| Standby Time | - | 672 hours | |
| Talk Time | 2040 minutes | 1440 minutes | ASUS ZenFone 3 Ultra (ZU680KL) has longer battery life when making calls than HTC Desire 825. |
| Run Time Details | Talk: up to 2040 min Continuous browsing (Wi-Fi): up to 14.5 hrs Playback (video): up to 12.5 hrs |
Talk (WCDMA): up to 1440 min Standby (WCDMA): up to 672 hrs Active online usage (Wi-Fi): up to 7 hrs Playback (audio): up to 48 hrs Playback (HD video): up to 6 hrs |
|
| Battery Technology | Lithium | - |
| CELLULAR | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| 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 6.0 (Marshmallow) | |
| User Interface | ASUS ZenUI 3.0 | HTC Sense | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS |
| COMMUNICATIONS | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | - | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 40 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2300 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 4.1 | |
| Bluetooth Profiles | A2DP | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Supported Digital Audio Standards | - | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, MIDI, M4A | |
|---|---|---|---|
| Supported Digital Video Standards | - | AVI, MPEG-4, WMV, 3GP, 3G2 | |
| Sound Enhancements | - | HTC BoomSound |
| FEATURES | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, RGB sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Fingerprint reader | - | |
| Additional Phone Features | QuickMemo function, Wi-Fi Miracast, Kids Mode, ASUS TruVivid technology, Power Saving Mode, Hi-Res Audio, ASUS BoostMaster technology, ASUS WebStorage (5GB), Google Drive Storage (100 GB) (free for 2 years), VisualMaster 3.0, DTS Headphone:X, ASUS SonicMaster 3.0 technology | HTC BlinkFeed, Power Saving Mode, Dual noise reduction microphones, Android Sensor Hub, Dolby Audio |
| OTHERS | ASUS ZenFone 3 Ultra (ZU680KL) | HTC Desire 825 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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