ASUS ZenFone 3 Ultra (ZU680KL) vs. ASUS ZenFone 4 (ZE554KL)

Phone Comparison, Reviews and Tests

Detailed comparison and review of ASUS ZenFone 3 Ultra (ZU680KL) and ASUS ZenFone 4 (ZE554KL). With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

ASUS ZenFone 3 Ultra (ZU680KL) vs. ASUS ZenFone 4 (ZE554KL) Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Product Type Smartphone Smartphone
Manufacturer Model Number ZU680KL ZE554KL
Form Factor Touch Touch
Height 186.4 mm 155.36 mm ASUS ZenFone 3 Ultra (ZU680KL) has greater height than ASUS ZenFone 4 (ZE554KL).
Width 93.9 mm 75.24 mm ASUS ZenFone 3 Ultra (ZU680KL) has greater width than ASUS ZenFone 4 (ZE554KL).
Depth 6.8 mm 7.7 mm ASUS ZenFone 3 Ultra (ZU680KL) is narrower than ASUS ZenFone 3 Ultra (ZU680KL).
Weight 233 g 165 g ASUS ZenFone 4 (ZE554KL) is lighter than ASUS ZenFone 3 Ultra (ZU680KL).
Body Colour Rose gold | Titanium grey | Glacier silver Midnight black | Moonlight white
Body Material Metal -
Waterproof (Water-resistant) - -
SAR Value - 1.48 W/kg (body), 1.42 W/kg (head)
Integrated Components FM radio FM radio
Connector Type HDMI - 19 pin micro HDMI Type D
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 Dual-SIM Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD Nano SIM + nano SIM/microSD
DISPLAY ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Display Type LCD display LCD display
Display Technology IPS Super IPS+
Screen Size (Display Size) 6.8" 5.5" ASUS ZenFone 3 Ultra (ZU680KL) has larger screen size than ASUS ZenFone 4 (ZE554KL).
Screen Resolution (Display Resolution) 1920 x 1080 pixels 1920 x 1080 pixels Both phones have the same screen resolution.
Display Format Full HD Full HD
Max Brightness - 600 cd/m²
Display Enhancement Technology Bluelight Filter for Eye Care Bluelight Filter for Eye Care, Splendid technology
Display Features Full Lamination, ASUS Tru2Life+ 2.5D Glass
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating
PROCESSOR ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Processor Type (CPU) Qualcomm Snapdragon 652 Qualcomm Snapdragon 630
Clock Speed 1.8 GHz 2.2 GHz ASUS ZenFone 4 (ZE554KL) has higher clock speed than ASUS ZenFone 3 Ultra (ZU680KL).
Processor Core Qty Quad-core 8-core ASUS ZenFone 4 (ZE554KL) has higher processor core quantity than ASUS ZenFone 3 Ultra (ZU680KL).
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 510 Qualcomm ADRENO 508
MEMORY ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
RAM 3 GB LPDDR4X SDRAM - 4 GB ASUS ZenFone 4 (ZE554KL) has more RAM than ASUS ZenFone 3 Ultra (ZU680KL).
Internal Memory Size (Storage Capacity) 32 GB 64 GB ASUS ZenFone 4 (ZE554KL) has more internal memory than ASUS ZenFone 3 Ultra (ZU680KL).
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 200 GB microSDHC, microSDXC - up to 2 TB
CAMERA ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
MAIN CAMERA
Number of Main Cameras 1 2
Sensor Resolution 23 Megapixel 12 Megapixel ASUS ZenFone 3 Ultra (ZU680KL) has better camera resolution than ASUS ZenFone 4 (ZE554KL).
Sensor Size - 1/2.55"
Sensor Name - Sony Exmor RS IMX362 sensor
Lens Aperture F/2.0 F/1.8 ASUS ZenFone 4 (ZE554KL) has better lens aperture than ASUS ZenFone 3 Ultra (ZU680KL).
Lens Construction 6-element 6-element
Optical Image Stabiliser (OIS) 4 Stop OIS (Optical Image Stabilisation) 4 Stop OIS (Optical Image Stabilisation) Both phones have optical image stabilization.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes -
Special Effects Depth of field HDR
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 Panorama, Time-lapse mode, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, portrait mode
Light Source Dual LED flash Dual 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, 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
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 3-axis electronic image stabilisation, RAW image capture, Subject-Tracking Auto-Focus, PixelMaster 4.0 camera, 4-axis optical image stabilisation, 9 filters, Instant cameras switching, Dual Pixel Phase Detect Auto-Focus (PDAF)
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Lens Type (2nd Camera) - Wide-angle lens
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 8 Megapixel Both phones have the same front camera resolution.
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/2.0 F/2.0 Both phones have the same front camera lens aperture.
Focus Adjustment Focus free -
Special Effects (Front) - Collage
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Slow motion video, night mode, selfie panorama Beauty mode, Auto mode, selfie panorama, GIF animation function, portrait mode, Smart beautification, Livestream beautification
Camera Features (Front) PixelMaster camera PixelMaster camera, ASUS SelfieMaster technology, 9 filters
BATTERY AND CHARGING ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Battery Capacity (Battery Size) 4600 mAh 3300 mAh ASUS ZenFone 3 Ultra (ZU680KL) has larger battery capacity than ASUS ZenFone 4 (ZE554KL).
Fast Charging Technology - ASUS Boost Master ASUS ZenFone 4 (ZE554KL) has fast charging technology.
Standby Time - 552 hours
Talk Time 2040 minutes 1800 minutes ASUS ZenFone 3 Ultra (ZU680KL) has longer battery life when making calls than ASUS ZenFone 4 (ZE554KL).
Run Time Details Talk: up to 2040 min
Continuous browsing (Wi-Fi): up to 14.5 hrs
Playback (video): up to 12.5 hrs
Standby (4G): up to 552 hrs
Talk (3G): up to 1800 min
Playback (video): up to 16 hrs
Continuous browsing (Wi-Fi): up to 18 hrs
Battery Technology Lithium Lithium polymer
CELLULAR ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
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 ASUS ZenUI 3.0 ASUS ZenUI 4.0
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+
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 5, Band 6, Band 8, Band 19
3G UMTS Frequency - 2100, 1900, 1800, 850, 800, 900, 800
4G LTE Band - Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41
4G LTE Frequency - 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, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500
Wireless Interface Infrared (IrDA), IEEE 802.11b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.2 Bluetooth 5.0
Bluetooth Profiles A2DP -
NFC - Yes ASUS ZenFone 4 (ZE554KL) has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Sound Enhancements - DTS-HD Premium Sound, Hi-Res audio, DTS Headphone:X
FEATURES ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
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 Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, RGB sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, colour correction sensor
Security Devices Fingerprint reader -
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 Wi-Fi Miracast, Dual noise reduction microphones, Google Drive Storage (100 GB) (free for 2 years), NXP Smart AMP technology, ASUS Noise Reduction technology, Nano Molding Technology (NMT)
OTHERS ASUS ZenFone 3 Ultra (ZU680KL) ASUS ZenFone 4 (ZE554KL)
Included Accessories Power adapter Power adapter, SIM card removal tool, ASUS ZenEar with Mic, USB-C cable
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