ASUS ZenFone 3 Ultra (ZU680KL) vs. ASUS Zenfone 8 Flip

Phone Comparison, Reviews and Tests

In depth comparison and review of ASUS ZenFone 3 Ultra (ZU680KL) and ASUS Zenfone 8 Flip. 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

ASUS ZenFone 3 Ultra (ZU680KL) vs. ASUS Zenfone 8 Flip Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Product Type Smartphone Smartphone
Manufacturer Model Number ZU680KL ZS672KS
Form Factor Touch Touch
Height 186.4 mm 165.04 mm ASUS ZenFone 3 Ultra (ZU680KL) has greater height than ASUS Zenfone 8 Flip.
Width 93.9 mm 77.28 mm ASUS ZenFone 3 Ultra (ZU680KL) has greater width than ASUS Zenfone 8 Flip.
Depth 6.8 mm 9.6 mm ASUS ZenFone 3 Ultra (ZU680KL) is narrower than ASUS ZenFone 3 Ultra (ZU680KL).
Weight 233 g 230 g ASUS Zenfone 8 Flip is lighter than ASUS ZenFone 3 Ultra (ZU680KL).
Body Colour Rose gold | Titanium grey | Glacier silver Galactic black
Body Material Metal Glass
Waterproof (Water-resistant) - -
SAR Value - 1.43 W/kg (head), 1.245 W/kg (body), 3.504 W/kg (limb)
Integrated Components FM radio -
Connector Type HDMI - 19 pin micro HDMI Type D
USB Type-C - 24 pin USB-C
USB Type-C - 24 pin USB-C
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD -
DISPLAY ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Display Type LCD display OLED display
Display Technology IPS AMOLED
Screen Size (Display Size) 6.8" 6.67" ASUS ZenFone 3 Ultra (ZU680KL) has larger screen size than ASUS Zenfone 8 Flip.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2400 x 1080 pixels ASUS Zenfone 8 Flip has better screen resolution than ASUS ZenFone 3 Ultra (ZU680KL).
Display Format Full HD Full HD+
Aspect Ratio - 20:9
Max Brightness - 1000 cd/m²
HDR - Yes ASUS Zenfone 8 Flip has HDR.
HDR Technology - HDR10+
Display Enhancement Technology Bluelight Filter for Eye Care DC Dimming
Display Refresh Rate - 90 Hz
Display Features Full Lamination, ASUS Tru2Life+ ASUS Glove Touch technology, Delta-E < 1, NanoEdge display, 105% NTSC, 110% DCI-P3
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass 6 (scratch resistant glass)
PROCESSOR ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Processor Type (CPU) Qualcomm Snapdragon 652 Qualcomm Snapdragon 888 5G
Processor Number - SM8350
Clock Speed 1.8 GHz 2.84 GHz ASUS Zenfone 8 Flip has higher clock speed than ASUS ZenFone 3 Ultra (ZU680KL).
Processor Core Qty Quad-core 8-core ASUS Zenfone 8 Flip has higher processor core quantity than ASUS ZenFone 3 Ultra (ZU680KL).
64-bit Architecture Yes - ASUS ZenFone 3 Ultra (ZU680KL) has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 510 Qualcomm ADRENO 660
MEMORY ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
RAM 3 GB LPDDR5 SDRAM - 8 GB ASUS Zenfone 8 Flip has more RAM than ASUS ZenFone 3 Ultra (ZU680KL).
Internal Memory Size (Storage Capacity) 32 GB 256 GB ASUS Zenfone 8 Flip has more internal memory than ASUS ZenFone 3 Ultra (ZU680KL).
Memory Interface - UFS 3.1
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 200 GB microSDHC, microSD, microSDXC - up to 2 TB
CAMERA ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
MAIN CAMERA
Number of Main Cameras 1 3
Rear Camera Design - Flip
Sensor Resolution 23 Megapixel 64 Megapixel ASUS Zenfone 8 Flip has better camera resolution than ASUS ZenFone 3 Ultra (ZU680KL).
Sensor Size - 1/1.7"
Sensor Name - Sony Exmor RS IMX686 sensor
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/1.8 ASUS Zenfone 8 Flip has better lens aperture than ASUS ZenFone 3 Ultra (ZU680KL).
Lens Construction 6-element -
Field of View (FoV) - 78.3 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 -
Laser Auto Focus Yes -
Minimum Focal Length (Focal Distance) - 26.6 mm
Special Effects Depth of field -
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 Slow motion video, Time-lapse mode, Pro mode, Auto Panorama
Light Source Dual LED flash 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 30fps, Slo-mo video 3840 x 2160 (4K) at 120 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), 3-axis electronic image stabilisation, Wind Noise Filter, Motion tracking, Quad Bayer technology, HyperSteady, Free Zoom, Mic Focus, 2x1 On-Chip Lens (OCL), Quick Flip Angle camera
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
Minimum Focal Length (2nd Camera) - 14.3 mm
Camera Features (2nd Camera) - Dual Pixel Phase Detect Auto-Focus (PDAF), Real-time distortion correction, Dual Pixel image sensor, 4cm macro photography
THIRD CAMERA
Sensor Resolution (3rd Camera) - 8 Megapixel
Sensor Size (3rd Camera) - 1/2.55"
Lens Type (3rd Camera) - Telephoto lens
Pixel Size (3rd Camera) - 1.4 μm
Optical Zoom - 3x
Digital Zoom - 12x
Camera Features (3rd Camera) - Dual Pixel image sensor
FRONT CAMERA
Number of Front Cameras 1 0
Sensor Resolution (Front) 8 Megapixel -
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/2.0 -
Focus Adjustment Focus free -
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Slow motion video, night mode, selfie panorama -
Camera Features (Front) PixelMaster camera -
BATTERY AND CHARGING ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Battery Capacity (Battery Size) 4600 mAh 5000 mAh ASUS Zenfone 8 Flip has larger battery capacity than ASUS ZenFone 3 Ultra (ZU680KL).
Fast Charging Technology - Qualcomm Quick Charge 4.0, Power Delivery 3.0 ASUS Zenfone 8 Flip has fast charging technology.
Recharge Time (Charging Time) - 1.7 hours
Talk Time 2040 minutes -
Run Time Details Talk: up to 2040 min
Continuous browsing (Wi-Fi): up to 14.5 hrs
Playback (video): up to 12.5 hrs
-
Battery Technology Lithium Lithium polymer
CELLULAR ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G ASUS Zenfone 8 Flip has more advanced generation mobile network.
Operating System Android 6.0 (Marshmallow) Android 11
User Interface ASUS ZenUI 3.0 ASUS ZenUI 8.0
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC
COMMUNICATIONS ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, 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 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 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 Infrared (IrDA), IEEE 802.11b/g/n/ac IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E
Bluetooth Bluetooth 4.2 Bluetooth 5.2 EDR
Bluetooth Profiles A2DP A2DP
NFC - Yes ASUS Zenfone 8 Flip has NFC reader for mobile payments.
Modem - Snapdragon X60 5G
Messaging Services SMS, MMS -
MEDIA ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Supported Digital Audio Standards - Apt-X, apt-X HD
Sound Enhancements - Dirac HD Sound, Hi-Res audio certified, OZO Audio, Qualcomm aptX Adaptive
Audio Amplifier - Dual NXP TFA9874
FEATURES ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Phone Functions 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 Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor, hall sensor, gyroscope
Security Devices Fingerprint reader Fingerprint reader (under display), face recognition
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 MIMO technology, Power Saving Mode, AudioWizard, Smart Key, One Hand Mode, ASUS Noise Reduction technology, ARCore, dual stereo speakers, triple noise reduction microphones, system mode
OTHERS ASUS ZenFone 3 Ultra (ZU680KL) ASUS Zenfone 8 Flip
Included Accessories Power adapter SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W)
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