Asus Zenfone 4 (ZE554KL 64GB/6GB NFC) vs Asus Zenfone 3 Ultra (ZU680KL 32GB)

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Side by side comparison between Asus Zenfone 4 vs Asus Zenfone 3 Ultra phones, differences, pros, cons and full specifications. What's the better?

10/18/2017 9:49 PM, updated: 11/15/2020 4:31 PM

Compare Asus Zenfone 3 Ultra X Asus Zenfone 4 (ZE554KL 64GB/6GB NFC) 10Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

12.2
MP

8mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

06Points Asus Zenfone 3 Ultra (ZU680KL 32GB) Compare Asus Zenfone 4 X

Specifications Compare Models Pictures

6.8"
IPS+

1080x1920

23
MP

8mp

3GB
RAM

Octa-core

4600
mAh

(Non removable)

What's the better phone? Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

10 Advantages Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	vs	6 Advantages Asus Zenfone 3 Ultra (ZU680KL 32GB)
+2.2GHz 64bit Octa-core38% More powerful processor, you can open your applications faster	vs	1.8GHz 64bit Octa-core
+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.	vs	3GB LPDDR4
+64GB (52GB available)117% More internal storage for applications and files	vs	32GB (24GB available)
+165 grams (5.78 ounces)41% Lighter	vs	233 grams (8.16 ounces)
+401 PPI24% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	324 PPI
+1/2.55" inches2% The larger sensor camera lets you take photos with better depth.	vs	1/2.6" inches
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.2 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
7.5 millimeters (0.3 inches)	vs	+6.8 millimeters (0.27 inches)10% Thinner
5.5"	vs	+6.8"24% Larger screen
(dual camera) 12.2MP + 8MP	vs	+(back) 23MP13% Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
Android 7.1.1 Nougat	vs	+Android 8.0 OreoAdvantage Android 8.0 Oreo is newer and safer
3300 mAh	vs	+4600 mAh39% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use

34 Common items in both devices

Until 256GB microSD, microSDXC

TFT IPS LCD / TFT Super IPS+

16 million

1080x1920 pixels

Only digital zoom

PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus

OIS (4-axis): Optical stabilization

+27 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Change model		Choose the model
Model	Zenfone 4 (ZE554KL 64GB/6GB NFC)	Zenfone 3 Ultra (ZU680KL 32GB)
Other model names	Asus Zenfone 4 (NFC version) Snapdragon 660 (6GB RAM)	Asus Zenfone 3 Ultra 3GB/32GB ZU680KL Dual-Sim, Asus Mercury
Country or region available	(Europe), South Africa, China, USA, Hong Kong, Taiwan	(Global, International)
Brand	Asus	Asus
Release date	10/1/2017	8/1/2016
Depth	7.5 millimeters (0.3 inches)	6.8 millimeters (0.27 inches)
Size (width x height)	75.2 x 155.4 millimeters (2.96 x 6.12 in)	93.9 x 186.4 millimeters (3.7 x 7.34 in)
Weight	165 grams (5.78 ounces)	233 grams (8.16 ounces)
Build, materials	Aluminum frame, glass front/back	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Display type	TFT IPS LCD	TFT Super IPS+
Screen size	5.5" inches	6.8" inches
Screen-to-body ratio	~71.4% (screen-to-body ratio)	~72.8% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x1920 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	324 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 4
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
System version	Android 7.1.1 Nougat	Android 6.0.1 Marshmallow
Firmware update	feature not registered	Android 8.0 Oreo
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Chipset	64bit: Qualcomm Snapdragon 660 SDM660 (14nm)	64bit: Qualcomm Snapdragon 652 MSM8976 (28nm)
CPU	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)	Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 512 650Mhz	Qualcomm Adreno 510 600Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
RAM memory	6GB LPDDR4X	3GB LPDDR4
Internal storage	64GB (52GB available)	32GB (24GB available)
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	600/150 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	China version: UMTS 850/900/1900/2100 North America version: UMTS 800/850/900/1700/1900/2100 Taiwan version: UMTS 800/850/900/1800/1900/2100	Global version: UMTS 800/850/900/1900/2100 China version: CDMA2000, TD-SCDMA 1900/2000 UMTS 800/850/900/1900/2100
Primary 4G network	LTE Cat12 China version: LTE (Bands 1,2,3,5,7,8) TD-LTE (Bands 34,38,39,40,41) North America version: LTE (Bands 1,2,3,4,5,7,8,12,17,28) Taiwan version: LTE (Bands 1,2,3,5,7,8,18,19,28) TD-LTE (Bands 38,39,40,41)	LTE Cat6 Global version: LTE (Bands 1,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,40,41) China version: LTE (Bands 1,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,39,40,41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Back camera (main camera)	(dual camera) 12.2 megapixels 8MP 12mm	23 megapixels
Main camera resolution	4032x3024 pixels	5520x4140 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 24 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	25mm (lens)	feature not registered
Sensor size	1/2.55" inches	1/2.6" inches
Pixel size	1.4µm pixel	1.12µm pixel
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	OIS (4-axis): Optical stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Front camera (secondary)	8 megapixels	8 megapixels
Front camera resolution	3264x2448 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	24mm (lens)	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263	MP4, H.264, H.263
Audio formats	MP3, WAV, OGG, eAAC+	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
USB	USB 2.0 Type-C reversible connector	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	USB Type-C SlimPort®
Bluetooth	5.0 + A2DP/LE	4.2 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3300 mAh	4600 mAh
Charger, watts	18W (9V/2A) Wired fast charging	18W (9V/2A) Wired fast charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	30 hours (1.3 days)	34 hours (1.4 days)
Standby	552 hours (23 days)	feature not registered
➕ Other features
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Moonlight white, Mint green, Midnight black • Asus ZenUI 4.0 • 2.5D glass screen • Sony IMX362 back camera sensor • Fast battery charging: 50% in 36min • 24-bit/192kHz audio • DTS surround sound • VoLTE	• Colors: Titanium Gray, Glacier Silver, Rose Gold • USB OTG On-The-Go • Asus ZenUI 3.0 • Sony IMX318 sensor camera • DTS headphone • Hi-Res audio 192kHz/24bit • Quick Charge 3.0 • Fast charging battery: 60% in 45min • Miracast
☢️ Radiation rate
	Asus Zenfone 4 (ZE554KL 64GB/6GB NFC)	Asus Zenfone 3 Ultra (ZU680KL 32GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered