In depth comparison and review of ASUS ZenFone 3 Ultra (ZU680KL) and HTC U Ultra. 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 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZU680KL | - | |
| Form Factor | Touch | Touch | |
| Height | 186.4 mm | 145.99 mm | ASUS ZenFone 3 Ultra (ZU680KL) has greater height than HTC U Ultra. |
| Width | 93.9 mm | 72.9 mm | ASUS ZenFone 3 Ultra (ZU680KL) has greater width than HTC U Ultra. |
| Depth | 6.8 mm | 7.99 mm | ASUS ZenFone 3 Ultra (ZU680KL) is narrower than ASUS ZenFone 3 Ultra (ZU680KL). |
| Weight | 233 g | 145 g | HTC U Ultra is lighter than ASUS ZenFone 3 Ultra (ZU680KL). |
| Body Colour | Rose gold | Titanium grey | Glacier silver | Brilliant black | |
| Body Material | Metal | Metal | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.48 W/kg (body), 0.4 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | HDMI - 19 pin micro HDMI Type D USB Type-C - 24 pin USB-C |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | Super LCD | |
| Screen Size (Display Size) | 6.8" | 5.2" | ASUS ZenFone 3 Ultra (ZU680KL) has larger screen size than HTC U Ultra. |
| 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 | - | 428 ppi | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Features | Full Lamination, ASUS Tru2Life+ | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 652 | MediaTek Helio P10 | |
|---|---|---|---|
| Clock Speed | 1.8 GHz | 2 GHz | HTC U Ultra has higher clock speed than ASUS ZenFone 3 Ultra (ZU680KL). |
| Processor Core Qty | Quad-core | 8-core | HTC U Ultra has higher processor core quantity than ASUS ZenFone 3 Ultra (ZU680KL). |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 510 | - |
| MEMORY | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| RAM | 3 GB | 3 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 22.8 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 U Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 16 Megapixel | ASUS ZenFone 3 Ultra (ZU680KL) has better camera resolution than HTC U Ultra. |
| Sensor Type | - | BSI | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | Yes | |
| Minimum Focal Length (Focal Distance) | - | 28 mm | |
| 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 | Burst mode, Panorama, Pro mode, Continuous shot, HYPERLAPSE, RAW mode | |
| Face Recognition (Face ID) | - | Face detection | HTC U Ultra has face detection. |
| Light Source | Dual LED flash | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
| 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 | Phase Detect Auto-Focus (PDAF), Video Pic |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 16 Megapixel | HTC U Ultra has better front camera resolution than ASUS ZenFone 3 Ultra (ZU680KL). |
| Sensor Type (Front) | - | BSI | |
| Lens Type (Front) | Wide-angle lens | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | Focus free | Automatic | |
| Min Focal Length (Front) | - | 26.5 mm | |
| Special Effects (Front) | - | Live make-up | |
| HDR Mode (Front) | Auto HDR mode | Auto HDR mode | |
| Camera Modes (Front) | Slow motion video, night mode, selfie panorama | Tap to focus, selfie panorama, Auto selfie (smile selfie, still selfie) | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) | |
| Camera Features (Front) | PixelMaster camera | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds |
| BATTERY AND CHARGING | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Battery Capacity (Battery Size) | 4600 mAh | 2500 mAh | ASUS ZenFone 3 Ultra (ZU680KL) has larger battery capacity than HTC U Ultra. |
|---|---|---|---|
| Standby Time | - | 427.54 hours | |
| Talk Time | 2040 minutes | 912 minutes | ASUS ZenFone 3 Ultra (ZU680KL) has longer battery life when making calls than HTC U Ultra. |
| 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 (3G): up to 912 min Standby (3G): up to 427.54 hrs |
|
| Battery Technology | Lithium | - |
| CELLULAR | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| 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 | |
| Intelligent Assistant | - | HTC Sense Companion | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS |
| COMMUNICATIONS | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE Advanced, VoLTE, 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 38, Band 40 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 4.2 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | - | Yes | HTC U Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, MP3, FLAC, OGG, M4A, MID | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, MPEG-4, 3GP, TS, WebM | |
| Sound Enhancements | - | HTC BoomSound Hi-Fi Edition |
| FEATURES | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor | |
| Security Devices | Fingerprint reader | 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 | AirPlay wireless streaming, sharing media via DLNA, Wi-Fi Miracast, Noise Cancellation Technology, Flip to Mute function, Power Saving Mode, Wi-Fi Calling, Pocket mode, Hi-Res Audio, Motion Launch, Android Sensor Hub, HTC Connect, Extreme power saving mode, Hi-Res audio stereo recording, HTC Usonic, Quiet ring on pick up |
| OTHERS | ASUS ZenFone 3 Ultra (ZU680KL) | HTC U Ultra |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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