In depth comparison and review of HTC Desire 820 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.
| DESIGN AND DIMENSIONS | HTC Desire 820 | ASUS Zenfone 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS590KS | |
| Form Factor | Touch | Touch | |
| Height | 157.7 mm | 148 mm | HTC Desire 820 has greater height than ASUS Zenfone 8. |
| Width | 78.74 mm | 68.5 mm | HTC Desire 820 has greater width than ASUS Zenfone 8. |
| Depth | 7.74 mm | 8.9 mm | HTC Desire 820 is narrower than HTC Desire 820. |
| Weight | 155 g | 169 g | HTC Desire 820 is lighter than HTC Desire 820. |
| Body Colour | Tuxedo grey | Marble white | Obsidian black | |
| Body Material | Polycarbonate | - | |
| Protection | - | Drop-proof, water-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | Yes | ASUS Zenfone 8 is waterproof. |
| IP rating | - | IP68, IP65 | |
| SAR Value | 0.323 W/kg (body), 0.373 W/kg (head) | 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 Desire 820 | ASUS Zenfone 8 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | Super LCD 2 | AMOLED | |
| Screen Size (Display Size) | 5.5" | 5.9" | ASUS Zenfone 8 has larger screen size than HTC Desire 820. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2400 x 1080 pixels | ASUS Zenfone 8 has better screen resolution than HTC Desire 820. |
| Display Format | HD | Full HD+ | |
| Pixel Density | 267 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 1100 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| 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 3 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | HTC Desire 820 | ASUS Zenfone 8 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Clock Speed | - | 2.842 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 660 |
| MEMORY | HTC Desire 820 | ASUS Zenfone 8 |
|---|
| RAM | 2 GB | LPDDR5 SDRAM - 8 GB | ASUS Zenfone 8 has more RAM than HTC Desire 820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | ASUS Zenfone 8 has more internal memory than HTC Desire 820. |
| User Memory | 11.2 GB | - | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | HTC Desire 820 | 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 Desire 820. |
| Sensor Size | - | 1/1.7" | |
| Sensor Type | BSI-CMOS | - | |
| Sensor Name | - | Sony Exmor RS IMX686 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.2 | F/1.8 | ASUS Zenfone 8 has better lens aperture than HTC Desire 820. |
| Field of View (FoV) | - | 78.3 degree(s) | |
| Pixel Size | - | 1.6 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | ASUS Zenfone 8 has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Minimum Focal Length (Focal Distance) | 28 mm | 26.6 mm | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Burst mode | Slow motion video, Time-lapse mode, Pro mode | |
| Face Recognition (Face ID) | Face detection | - | HTC Desire 820 has face detection. |
| Light Source | LED light | LED flash | |
| Still Image Resolutions | 4160 x 3120 | - | |
| 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) | Auto selfie, Photo Booth feature, Live Makeup, Split Capture | 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) | 8 Megapixel | 12 Megapixel | ASUS Zenfone 8 has better front camera resolution than HTC Desire 820. |
| Sensor Type (Front) | BSI-CMOS | - | |
| Sensor Name (Front) | - | Sony Exmor RS IMX663 sensor | |
| Lens Aperture (Front) | - | F/2.4 | |
| Pixel Size (Front) | - | 1.22 μm | |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | Face fusion | - | |
| Camera Modes (Front) | - | Portrait | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | - | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) |
| BATTERY AND CHARGING | HTC Desire 820 | ASUS Zenfone 8 |
|---|
| Battery Capacity (Battery Size) | 2600 mAh | 4000 mAh | ASUS Zenfone 8 has larger battery capacity than HTC Desire 820. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | ASUS Zenfone 8 has fast charging technology. |
| Standby Time | 455 hours | - | |
| Talk Time | 1068 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 1068 min Standby (WCDMA): up to 455 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | HTC Desire 820 | 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 4.4 (KitKat) | Android 11 | |
| User Interface | HTC Sense | ASUS ZenUI 8.0 | |
| Navigation | A-GPS, GLONASS | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
| COMMUNICATIONS | HTC Desire 820 | 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 3, Band 7, Band 8, Band 20 | 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 1800+, FDD 2600, FDD 900, FDD 800 DD | 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 | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.2 EDR | |
| Bluetooth Profiles | A2DP | HFP, OPP, PAN, A2DP, AVRCP, HID | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | - | Snapdragon X60 5G | |
| Communication Features | Mobile Email client, Internet browser | - | |
| Messaging Services | SMS, MMS | - |
| MEDIA | HTC Desire 820 | ASUS Zenfone 8 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, OGG, MIDI, M4A, WMA 9 | - | |
|---|---|---|---|
| Supported Digital Video Standards | AVI, MPEG-4, 3GP, H.264, H.263, WMV9, 3G2 | - | |
| Sound Enhancements | HTC BoomSound | 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 Desire 820 | ASUS Zenfone 8 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | |
| Security Devices | - | Fingerprint reader (under display), face recognition | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Additional Phone Features | DLNA Certified, sharing media via DLNA, Wi-Fi Miracast, HTC BlinkFeed, HTC Sense Voice | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers |
| OTHERS | HTC Desire 820 | 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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