In depth comparison and review of ASUS ZenFone 5Z (ZS620KL) and Samsung Galaxy S20 Ultra 5G. 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 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | ZS620KL | SM-G988B/DS | |
Form Factor | Touch | Touch | |
Height | 153 mm | 166.9 mm | Samsung Galaxy S20 Ultra 5G has greater height than ASUS ZenFone 5Z (ZS620KL). |
Width | 75.65 mm | 76 mm | Samsung Galaxy S20 Ultra 5G has greater width than ASUS ZenFone 5Z (ZS620KL). |
Depth | 7.7 mm | 8.8 mm | ASUS ZenFone 5Z (ZS620KL) is narrower than ASUS ZenFone 5Z (ZS620KL). |
Weight | 155 g | 220 g | ASUS ZenFone 5Z (ZS620KL) is lighter than ASUS ZenFone 5Z (ZS620KL). |
Body Colour | Midnight blue | Meteor silver | Cosmic black | Cosmic grey | Cloud white | |
Body Material | Aluminium | - | |
Protection | - | Dustproof, splashproof, water-resistant | |
Waterproof (Water-resistant) | - | Yes | Samsung Galaxy S20 Ultra 5G is waterproof. |
IP rating | - | IP68 | |
SAR Value | - | 1.557 W/kg (body), 0.66 W/kg (head) | |
Integrated Components | FM radio | - | |
Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
USB Type-C - 24 pin USB-C | |
SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
SIM Card Qty | Dual-SIM | Dual-SIM | |
SIM Card Configuration Details | Nano SIM + nano SIM/microSD | Nano SIM + nano SIM/microSD |
DISPLAY | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Display Type | LCD display | OLED display | |
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Display Technology | IPS+ | Infinity-O Dynamic AMOLED 2X | |
Screen Size (Display Size) | 6.2" | 6.9" | Samsung Galaxy S20 Ultra 5G has larger screen size than ASUS ZenFone 5Z (ZS620KL). |
Screen Resolution (Display Resolution) | 2246 x 1080 pixels | 3200 x 1440 pixels | Samsung Galaxy S20 Ultra 5G has better screen resolution than ASUS ZenFone 5Z (ZS620KL). |
Display Format | - | QHD+ | |
Pixel Density | 402 ppi | 511 ppi | Samsung Galaxy S20 Ultra 5G has better pixel density than ASUS ZenFone 5Z (ZS620KL). |
Aspect Ratio | 18:5:9 | - | |
Max Brightness | 550 cd/m² | - | |
Colour Depth | - | 16.7 million colours | |
HDR | - | Yes | Samsung Galaxy S20 Ultra 5G has HDR. |
HDR Technology | - | HDR10+ | |
Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
Display Refresh Rate | - | 120 Hz | |
Display Features | DCI-P3 Wide colour gamut, Auto Colour Temperature, Smart Screen On | Edge Screen, DCI-P3 Wide colour gamut, AOD(Always On Display), Edge Lighting | |
Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating | - |
PROCESSOR | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Processor Type (CPU) | Qualcomm Snapdragon 845 | Samsung Exynos 990 | |
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Clock Speed | - | 2.73 GHz | |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 630 | - |
MEMORY | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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RAM | LPDDR4X SDRAM - 4 GB | LPDDR5 SDRAM - 12 GB | Samsung Galaxy S20 Ultra 5G has more RAM than ASUS ZenFone 5Z (ZS620KL). |
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Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Samsung Galaxy S20 Ultra 5G has more internal memory than ASUS ZenFone 5Z (ZS620KL). |
User Memory | - | 104 GB | |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 1 TB |
CAMERA | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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MAIN CAMERA |
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Number of Main Cameras | 2 | 4 | |
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Sensor Resolution | 12 Megapixel | 108 Megapixel | Samsung Galaxy S20 Ultra 5G has better camera resolution than ASUS ZenFone 5Z (ZS620KL). |
Sensor Size | 1/2.55" | 1/1.33" | ASUS ZenFone 5Z (ZS620KL) has better camera sensor size than Samsung Galaxy S20 Ultra 5G. |
Sensor Name | Sony Exmor RS IMX363 sensor | - | |
Lens Type | - | Wide-angle lens | |
Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
Lens Construction | 6-element | - | |
Field of View (FoV) | - | 79 degree(s) | |
Pixel Size | - | 0.8 μm | |
Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
Focus Adjustment | - | Automatic, manual | |
Optical Zoom | - | 10x | |
Digital Zoom | - | 100x | |
Self-Timer Delay | - | Yes | |
Special Effects | Night HDR | HDR, Bokeh effect, Grid Line, Motion photos, video bokeh effect | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Panorama, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, Real-Time Beautification, Real-time Protrait, Time Lapse (with power saving mode) | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Live focus video, Night, Mountain, Pro Video mode, Single Take | |
Face Recognition (Face ID) | - | Face detection | Samsung Galaxy S20 Ultra 5G has face detection. |
White Balance | - | Custom, automatic | |
Light Source | LED flash | High CRI LED flash | |
Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (8K) at 24 fps | |
Camera Features (Functions) | Dual Pixel technology, Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, RAW image capture, 4-axis optical image stabilisation, Instant cameras switching, Live Emoji, 8 filters, AI Photo Learning, 32s long exposure | Quick Launch, Playback zoom, Phase Detect Auto-Focus (PDAF), blink detection, VDIS (Video Digital Image Stabilisation), Live Focus, Tracking AF, Video location tags, Quick Share, location tags, Hyperlapse video support 1080p, Scene Optimiser, Full view, Flaw detection, Shot suggestions, AR Emoji, blur detection, HDR10+ recording, Floating shutter button, Super steady, Quick Measure, Space Zoom, 33MP still photos while playing 8K video, 100x Super Resolution Zoom, 10x Hybrid Optic Zoom, 3D Scanner |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Samsung Galaxy S20 Ultra 5G has better second camera resolution than ASUS ZenFone 5Z (ZS620KL). |
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Lens Type (2nd Camera) | Wide-angle lens | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Field of View (2nd Camera) | - | 120 degree(s) | |
Pixel Size (2nd Camera) | - | 1.4 μm | |
Camera Features (2nd Camera) | 3-axis electronic image stabilisation | - |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 48 Megapixels | |
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Lens Type (3rd Camera) | - | Telephoto lens | |
Lens Aperture (3rd Camera) | - | F/3.5 | |
Field of View (3rd Camera) | - | 24 degree(s) | |
Pixel Size (3rd Camera) | - | 0.8 μm |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 0.3 Megapixel | |
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Lens Aperture (4th Camera) | - | F/1.0 | |
Camera Functions (4th Camera) | - | DepthVision camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 8 Megapixel | 40 Megapixels | Samsung Galaxy S20 Ultra 5G has better front camera resolution than ASUS ZenFone 5Z (ZS620KL). |
Lens Type (Front) | Wide-angle lens | - | |
Lens Aperture (Front) | F/2.0 | F/2.2 | ASUS ZenFone 5Z (ZS620KL) has better front lens aperture than ASUS ZenFone 5Z (ZS620KL). |
Field of View (Front) | - | 80 degree(s) | |
Pixel Size (Front) | - | 0.7 μm | |
Focus Adjustment | - | Automatic | |
Special Effects (Front) | Night HDR | - | |
HDR Mode (Front) | Auto HDR mode | - | |
Camera Modes (Front) | Beauty mode, Auto mode, selfie panorama, GIF animation function | - | |
Camera Features (Front) | PixelMaster camera, Electronic Image Stabiliser (EIS), 8 filters | Phase Detect Auto-Focus (PDAF) |
BATTERY AND CHARGING | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Battery Capacity (Battery Size) | 3300 mAh | 5000 mAh | Samsung Galaxy S20 Ultra 5G has larger battery capacity than ASUS ZenFone 5Z (ZS620KL). |
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Fast Charging Technology | BoostMaster Fast Charging | Qualcomm Quick Charge 2.0, Adaptive Fast Charging, Samsung Super Fast Charging | Both phones have fast charging technology. |
Wireless Charging | - | Yes | Samsung Galaxy S20 Ultra 5G can be charged wirelessly. |
Wireless Charging Standards | - | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | |
Talk Time | - | 1500 minutes | |
Run Time Details | - | Talk (LTE): up to 1500 min Active online usage (LTE): up to 17 hrs Active online usage (Wi-Fi): up to 18 hrs |
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Battery Technology | Lithium polymer | - |
CELLULAR | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 5G | Samsung Galaxy S20 Ultra 5G has more advanced generation mobile network. |
Operating System | Android 9.0 Pie | Android 10 | |
User Interface | ASUS ZenUI 5.0 | Samsung One UI 2 | |
Intelligent Assistant | - | Bixby | |
Payment Technology | - | Samsung Pay | |
Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE, DC-HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | |
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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 4, Band 5, Band 8 | |
3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
4G LTE Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
5G NR Band | - | N1, n3, n5, n7, n8, n28, n77, n78, n40 | |
5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 700APT, TDD TD 3700, TDD TD 3500, TDD 2300 | |
Wireless Interface | IEEE 802.11ac | IEEE 802.11a/b/g/n/ac, ANT+/ANT, IEEE 802.11a/b/g/n/ac/ax | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
Bluetooth Profiles | A2DP | - | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Supported Digital Audio Standards | - | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
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Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
Sound Enhancements | ASUS BoostMaster technology, Hi-Res audio, DTS Headphone:X | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound |
FEATURES | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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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 | |
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Sensors | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor, RGB sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | |
Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
Additional Phone Features | Face Unlock, AudioWizard, NXP Smart AMP technology, ASUS Noise Reduction technology, Google Drive Storage (100 GB) (free for 1 year), Dual Smart AMP, Dual noise-cancelling microphones, AI Charging, AI Boost, ZeniMoji | Smart Select, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Smart View, Live message, Samsung DeX support, Bixby Vision, Secure Folder function, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, AR Doodle, Bixby key, 3D Scanner |
OTHERS | ASUS ZenFone 5Z (ZS620KL) | Samsung Galaxy S20 Ultra 5G |
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Included Accessories | Power adapter, USB-C cable, ASUS ZenEar S Hi-Res earphone with microphone | Power adapter, SIM card removal tool, USB-C cable, headset (tuned by AKG), clear cover case, protective film | |
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Compliant Standards | - | VDE, IP68, SGS | |
Max Depth of Water Resistance | - | 1.5 m |