In depth comparison and review of HTC U Ultra and ASUS ZenFone AR (ZS571KL). 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 U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS571KL | |
| Form Factor | Touch | Touch | |
| Height | 145.99 mm | 158.67 mm | ASUS ZenFone AR (ZS571KL) has greater height than HTC U Ultra. |
| Width | 72.9 mm | 77.4 mm | ASUS ZenFone AR (ZS571KL) has greater width than HTC U Ultra. |
| Depth | 7.99 mm | 7.99 mm | Both phones are the same depth. |
| Weight | 145 g | 185 g | HTC U Ultra is lighter than HTC U Ultra. |
| Body Colour | Brilliant black | Black | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.48 W/kg (body), 0.4 W/kg (head) | 1.59 W/kg (body), 0.85 W/kg (head) | |
| Integrated Components | - | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm 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 | Single-SIM | Dual-SIM (SIM1 and SIM2/MicroSD slots) | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | Super LCD | Quad HD Super AMOLED | |
| Screen Size (Display Size) | 5.2" | 5.7" | ASUS ZenFone AR (ZS571KL) has larger screen size than HTC U Ultra. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2560 x 1440 pixels | ASUS ZenFone AR (ZS571KL) has better screen resolution than HTC U Ultra. |
| Display Format | Full HD | QHD | |
| Pixel Density | 428 ppi | - | |
| Display Enhancement Technology | - | Bluelight Filter for Eye Care | |
| Display Features | - | ASUS Glove Touch technology, ASUS Tru2Life | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 4 (scratch resistant glass) |
| PROCESSOR | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Processor Type (CPU) | MediaTek Helio P10 | Qualcomm Snapdragon 821 | |
|---|---|---|---|
| Processor Number | - | MSM8996 Pro | |
| Clock Speed | 2 GHz | 2.35 GHz | ASUS ZenFone AR (ZS571KL) has higher clock speed than HTC U Ultra. |
| Processor Core Qty | 8-core | Quad-core | HTC U Ultra has higher processor core quantity than ASUS ZenFone AR (ZS571KL). |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 530 |
| MEMORY | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| RAM | 3 GB | LPDDR4 SDRAM - 6 GB | ASUS ZenFone AR (ZS571KL) has more RAM than HTC U Ultra. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | ASUS ZenFone AR (ZS571KL) has more internal memory than HTC U Ultra. |
| User Memory | 22.8 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 23 Megapixel | ASUS ZenFone AR (ZS571KL) has better camera resolution than HTC U Ultra. |
| Sensor Size | - | 1/2.6" | |
| Sensor Type | BSI | - | |
| Sensor Name | - | Sony Exmor RS IMX318 sensor | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 6-element | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | Yes | |
| Minimum Focal Length (Focal Distance) | 28 mm | 27 mm | |
| Special Effects | - | Depth of field | |
| HDR Mode | Auto HDR mode | HDR Pro | |
| Camera Modes | Burst mode, Panorama, Pro mode, Continuous shot, HYPERLAPSE, RAW mode | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | |
| 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) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Video Pic | Zero Shutter Lag, Phase Detect Auto-Focus (PDAF), Smart Remove, Time Rewind, PixelMaster 3.0 camera, 3-axis electronic image stabilisation, Blue Glass IR Filter, Continuous Auto Focus (CAF), RAW image capture, ASUS TriTech technology |
| SECOND CAMERA |
|---|
| Camera Features (2nd Camera) | - | Motion Tracking Rear Camera |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 8 Megapixel | HTC U Ultra has better front camera resolution than ASUS ZenFone AR (ZS571KL). |
| Sensor Size (Front) | - | 1/4" | |
| Sensor Type (Front) | BSI | - | |
| Sensor Name (Front) | - | Omnivision OV8856 sensor | |
| 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 | Automatic | Focus free | |
| Min Focal Length (Front) | 26.5 mm | - | |
| Special Effects (Front) | Live make-up | Miniature, HDR, Depth of field | |
| HDR Mode (Front) | Auto HDR mode | HDR Pro | |
| Camera Modes (Front) | Tap to focus, selfie panorama, Auto selfie (smile selfie, still selfie) | Panorama, Time-lapse mode, Slow motion mode, night mode, selfie mode, manual mode, super resolution mode, low-light shots, All Smiles mode, Photo Effect Mode, panoramic selfies, selfie panorama, GIF animation function, Real-Time Beautification | |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds | PixelMaster 3.0 camera, Time Rewind, Smart Remove |
| BATTERY AND CHARGING | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Battery Capacity (Battery Size) | 2500 mAh | 3300 mAh | ASUS ZenFone AR (ZS571KL) has larger battery capacity than HTC U Ultra. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 3.0, Power Delivery 2.0, BoostMaster Fast Charging | ASUS ZenFone AR (ZS571KL) has fast charging technology. |
| Standby Time | 427.54 hours | - | |
| Talk Time | 912 minutes | - | |
| Run Time Details | Talk (3G): up to 912 min Standby (3G): up to 427.54 hrs |
- | |
| Battery Technology | - | Lithium polymer |
| CELLULAR | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| 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 7.0 Nougat | |
| User Interface | HTC Sense | ASUS ZenUI 3.0 | |
| Intelligent Assistant | HTC Sense Companion | - | |
| Navigation | GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 5, Band 6, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 800, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 4.2 | |
| Bluetooth Profiles | - | OPP, PAN, A2DP, AVRCP, HID | |
| NFC | Yes | - | HTC U Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| 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 | DTS-HD Premium Sound, Virtual Surround Sound, DTS Headphone:X 7.1, Hi-Res audio |
| FEATURES | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, G-sensor, hall sensor, RGB sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | 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 | Infrared remote control, Dual microphones, Google Drive Storage (100 GB) (free for 2 years), Tango technology support, ASUS SonicMaster 3.0 technology, NXP Smart AMP technology, ASUS Noise Reduction technology, Daydream technology support |
| OTHERS | HTC U Ultra | ASUS ZenFone AR (ZS571KL) |
|---|
| Included Accessories | Power adapter | Power adapter, USB-C cable |
|---|
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