HTC One (A9) vs. ASUS Zenfone 8

Phone Comparison, Reviews and Tests

In depth comparison and review of HTC One (A9) and ASUS Zenfone 8. 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.

Phone Specifications Comparison

HTC One (A9) vs. ASUS Zenfone 8 Comparison Chart
DESIGN AND DIMENSIONS HTC One (A9) ASUS Zenfone 8
Product Type Smartphone Smartphone
Manufacturer Model Number - ZS590KS
Form Factor Touch Touch
Height 145.75 mm 148 mm ASUS Zenfone 8 has greater height than HTC One (A9).
Width 70.8 mm 68.5 mm HTC One (A9) has greater width than ASUS Zenfone 8.
Depth 7.26 mm 8.9 mm HTC One (A9) is narrower than HTC One (A9).
Weight 143 g 169 g HTC One (A9) is lighter than HTC One (A9).
Body Colour Topaz gold | Opal silver | Carbon grey Obsidian black
Protection - Drop-proof, water-resistant, dust-resistant
Waterproof (Water-resistant) - Yes ASUS Zenfone 8 is waterproof.
IP rating - IP68, IP65
SAR Value 0.41 W/kg 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb)
Integrated Components FM radio FM radio
Connector Type Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty - Dual-SIM
DISPLAY HTC One (A9) ASUS Zenfone 8
Display Type OLED display OLED display
Display Technology AMOLED AMOLED
Screen Size (Display Size) 5" 5.9" ASUS Zenfone 8 has larger screen size than HTC One (A9).
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2400 x 1080 pixels ASUS Zenfone 8 has better screen resolution than HTC One (A9).
Display Format Full HD Full HD+
Pixel Density 440 ppi -
Aspect Ratio - 20:9
Max Brightness - 1100 cd/m²
HDR - Yes ASUS Zenfone 8 has HDR.
HDR Technology - HDR10+
Display Enhancement Technology - DC Dimming
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 240 Hz
Display Features - Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass Victus (scratch resistant glass)
PROCESSOR HTC One (A9) ASUS Zenfone 8
Processor Type (CPU) Qualcomm Snapdragon 617 Qualcomm Snapdragon 888 5G
Clock Speed 1.5 GHz 2.842 GHz ASUS Zenfone 8 has higher clock speed than HTC One (A9).
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes - HTC One (A9) has 64-bit architecture.
Graphics System (GPU) - Qualcomm ADRENO 660
MEMORY HTC One (A9) ASUS Zenfone 8
RAM 2 GB LPDDR5 SDRAM - 8 GB ASUS Zenfone 8 has more RAM than HTC One (A9).
Internal Memory Size (Storage Capacity) 16 GB 128 GB ASUS Zenfone 8 has more internal memory than HTC One (A9).
Memory Interface - UFS 3.1
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 2 TB -
CAMERA HTC One (A9) ASUS Zenfone 8
MAIN CAMERA
Number of Main Cameras 1 2
Sensor Resolution 13 Megapixel 64 Megapixel ASUS Zenfone 8 has better camera resolution than HTC One (A9).
Sensor Size - 1/1.7"
Sensor Type BSI-CMOS -
Sensor Name - Sony Exmor RS IMX686 sensor
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/1.8 ASUS Zenfone 8 has better lens aperture than HTC One (A9).
Field of View (FoV) - 78.3 degree(s)
Pixel Size - 1.6 μm
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Both phones have optical image stabilization.
Focus Adjustment Automatic -
Minimum Focal Length (Focal Distance) - 26.6 mm
Camera Modes Pro mode Slow motion video, Time-lapse mode, Pro mode
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps
Camera Features (Functions) Sapphire crystal lens cover Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, 4-axis optical image stabilisation, Motion tracking, Quad Bayer technology, 2x1 On-Chip Lens (OCL)
SECOND CAMERA
Sensor Resolution (2nd Camera) - 12 Megapixel
Sensor Size (2nd Camera) - 1/2.55"
Sensor Name (2nd Camera) - Sony Exmor RS IMX363 sensor
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Pixel Size (2nd Camera) - 1.4 μm
Focal Length Equivalent to 35mm Camera - 14.3
Camera Features (2nd Camera) - Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF)
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 4 Megapixel 12 Megapixel ASUS Zenfone 8 has better front camera resolution than HTC One (A9).
Sensor Name (Front) - Sony Exmor RS IMX663 sensor
Lens Aperture (Front) F/2.0 F/2.4 HTC One (A9) has better front lens aperture than HTC One (A9).
Pixel Size (Front) - 1.22 μm
Focus Adjustment Focus free Automatic
Camera Modes (Front) - Portrait
Video Resolutions (Front) 1920 x 1080 (1080p) -
Camera Features (Front) HTC UltraPixel Camera Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF)
BATTERY AND CHARGING HTC One (A9) ASUS Zenfone 8
Battery Capacity (Battery Size) 2150 mAh 4000 mAh ASUS Zenfone 8 has larger battery capacity than HTC One (A9).
Fast Charging Technology - Qualcomm Quick Charge 4.0, Power Delivery 3.0 ASUS Zenfone 8 has fast charging technology.
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
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Battery Technology Lithium polymer -
CELLULAR HTC One (A9) ASUS Zenfone 8
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G ASUS Zenfone 8 has more advanced generation mobile network.
Operating System Android 6.0 (Marshmallow) Android 11
User Interface HTC Sense ASUS ZenUI 8.0
Navigation GPS, GLONASS GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC
COMMUNICATIONS HTC One (A9) ASUS Zenfone 8
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1
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 3, Band 4, Band 5, Band 6, Band 8, Band 19
3G UMTS Frequency - 2100, 1900, 1800, 1700, 850, 800, 900, 800
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 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42
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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500
5G NR Band - N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12
5G NR Frequency - FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 4.1 Bluetooth 5.2 EDR
Bluetooth Profiles - HFP, OPP, PAN, A2DP, AVRCP, HID
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Modem - Snapdragon X60 5G
Messaging Services SMS, MMS -
MEDIA HTC One (A9) ASUS Zenfone 8
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 Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive
Audio Amplifier - Dual Cirrus Logic CS35L45
FEATURES HTC One (A9) ASUS Zenfone 8
Phone Functions 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, G-sensor, gyroscope
Security Devices Fingerprint reader Fingerprint reader (under display), face recognition
Additional Phone Features DLNA Certified, HTC BlinkFeed, Hi-Res Audio, Android Sensor Hub MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers
OTHERS HTC One (A9) ASUS Zenfone 8
Included Accessories Power adapter SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W)
Compliant Standards - IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification
Max Height of Shock Resistance - 2 m
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