Skip to content

Asus Zenfone 3 Ultra (ZU680KL 64GB) vs Asus Zenfone 8 Flip (128GB)

Side by side comparison between Asus Zenfone 3 Ultra vs Asus Zenfone 8 Flip phones, differences, pros, cons and full specifications. What's the better?

,
Compare Asus Zenfone 8 Flip X Asus Zenfone 3 Ultra (ZU680KL 64GB) 05Points
6.8"
IPS+

1080x1920

23
MP

8mp

4GB
RAM

Octa-core

4600
mAh

(Non removable)

vs
26Points Asus Zenfone 8 Flip (128GB) Compare Asus Zenfone 3 Ultra X
6.67"
AMOLED

1080x2400

64
MP

64mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Asus Zenfone 8 Flip (128GB)

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!

Zenfone 3 Ultra (ZU680KL 64GB)} 5 Advantages Asus Zenfone 3 Ultra (ZU680KL 64GB) vs Zenfone 8 Flip (128GB)} 26 Advantages Asus Zenfone 8 Flip (128GB)
+6.8 millimeters (0.27 inches)31%
Thinner
vs8.9 millimeters (0.35 inches)
+6.8"2%
Larger screen
vs6.67"
+OIS (4-axis): Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
vsNot supported
1.8GHz 64bit Octa-corevs+2.84GHz 64bit Octa-core (5nm)55%
More powerful processor, you can open your applications faster
4GB LPDDR4vs+8GB LPDDR5100%
More RAM memory. Typically more responsive and better for multitasking.
64GB (55GB available)vs+128GB (107GB available)95%
More internal storage for applications and files
Until 256GB microSD, microSDXCvs+Until 1TB microSD, microSDXC3 times
More external storage for files using memory cards
233 grams (8.16 ounces)vs+169 grams (5.92 ounces)38%
Lighter
TFT Super IPS+vs+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
1080x1920 pixelsvs+1080x2400 pixels25%
Higher resolution screen
324 PPIvs+395 PPI22%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(back) 23MPvs+(triple camera) 64MP + 12MP + 8MP3 times
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
1/2.6" inchesvs+1/1.73" inches50%
The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 8MPvs+(triple front camera) 64MP + 12MP + 8MP10 times
Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)vs+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)vs+(front) 8K UHD (7680x4320)15 times
More image quality for recording videos with the secondary camera
Android 8.0 Oreovs+Android 13Advantage
Android 13 is newer and safer
4G LTE-Avs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE-A) 300 Mbpsvs+(5G SA/NSA) 2000 Mbps6 times
Faster for surfing the internet and download files
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
4600 mAhvs+5000 mAh9%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18Wvs+30W67%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)
vs+2 slots (Dual-SIM)
(dedicated slot)Advantage
You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
4.2 + A2DPvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

17 Common items in both devices
16 million
Dual-LED flash
LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus
HDR photo on both cameras / HDR photo/video on both cameras
Capacitive
Multitouch
Accelerometer
+10 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 Clear highlight

📱 Model features

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
ModelZenfone 3 Ultra (ZU680KL 64GB)Zenfone 8 Flip (128GB)
Other model namesAsus Zenfone 3 Ultra 4GB/64GB ZU680KL Dual-Sim, Asus MercuryAsus Zenfone 8 (ZS672KS)
Country or region available(Global, International)
(Global, International)
(Global, International)
(Global, International)
BrandAsusAsus
Release date8/1/20165/13/2021, Announced: 5/12/2021
Depth6.8 millimeters (0.27 inches)8.9 millimeters (0.35 inches)
Size (width x height)93.9 x 186.4 millimeters (3.7 x 7.34 in)68.5 x 148 millimeters (2.7 x 5.83 in)
Weight233 grams (8.16 ounces)169 grams (5.92 ounces)
Build, materialsfeature not registeredAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Display typeTFT Super IPS+Super AMOLED
Screen size6.8" inches6.67" inches
Screen-to-body ratio~72.8% (screen-to-body ratio)~105.9% (screen-to-body ratio)
Display resolution1080x1920 pixels1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)324 PPI395 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 4Gorilla Glass 6
Refresh ratefeature not registered90Hz
Display featuresfeature not registered700nits[typ], 1000nits[peak]
HDR10+
Always-On Display

🤖 Operating System

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
System versionAndroid 6.0.1 MarshmallowAndroid 11
Firmware updateAndroid 8.0 OreoAndroid 13
User Interfacefeature not registeredZenUI 8 / 9 / 10

⚙️ Processor

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Chipset64bit: Qualcomm Snapdragon 652 MSM8976 (28nm)64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)
CPUOcta-core, 2 processors:
4x 1.8GHz ARM Cortex-A72 (Quad-core)
4x 1.4GHz ARM Cortex-A53 (Quad-core)
Octa-core, 3 processors:
1x 2.84GHz Kryo 680 (Single-core)
3x 2.42GHz Kryo 680 (Triple-core)
4x 1.8GHz Kryo 680 (Quad-core)
GPU graphical controllerQualcomm Adreno 510 600MhzQualcomm Adreno 660 (840MHz)
Performance (benchmark)feature not registeredAnTuTu: 675851 (v8), 797848(v9)
Geekbench: 3673 (v5.1)
GFXBench: 62fps (ES 3.1 onscreen)

💽 Memory and storage

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
RAM memory4GB LPDDR48GB LPDDR5
Internal storage64GB (55GB available)128GB (107GB available)
UFS 3.1
External storageUntil 256GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 1TB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
Dual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
micro-SIM (3FF) and nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload300/50 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkGlobal version:
UMTS 800/850/900/1900/2100
China version:
CDMA2000, TD-SCDMA 1900/2000
UMTS 800/850/900/1900/2100
UMTS 800/850/900/1700/1900/2100
Primary 4G networkLTE 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)
LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28)
TD-LTE (34, 38, 39, 40, 41, 42)
VoLTE
Primary 5G networkNot supportedSA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78)
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 800/850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28)
TD-LTE (34, 38, 39, 40, 41, 42)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Back camera (main camera)23 megapixels(triple camera)
64 megapixels
12MP ultrawide f/2.2112°14mm1/2.55"1.4µmPDAF
8MP telephoto f/2.480mmPDAF3x-optical-zoom
Main camera resolution5520x4140 pixels10120x6328 pixels
Video recording (primary)4K UHD (3840x2160) 24 fps8K UHD (7680x4320) 24 fps
FlashDual-LED flashDual-LED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/2.6" inches1/1.73" inches
Pixel size1.12µm pixel0.8µm pixel
AutofocusLDAF/PDAF: laser/phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical stabilizationEIS: Digital stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extrasfeature not registered4K@120fps
1080p@240fps
720p@480fps

📸 Front camera

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Front camera (secondary)8 megapixelsUses the back motorized camera (flip-up/rotating)
Front camera resolution3264x2448 pixels10120x6328 pixels
Video recording (secondary)Full HD (1920x1080)8K UHD (7680x4320)
Front flashNot supportedDual-LED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/1.73" inches
Pixel sizefeature not registered0.8µm pixel

🔉 Sound and multimedia

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
LoudspeakerSupportedStereo sound
24-bit/192kHz
Active noise cancellation2 microphones or more2 microphones or more
RadioFM (RDS)Not supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputUSB Type-C SlimPort®USB Type-C (reversible)
Bluetooth4.2 + A2DP5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFCNot supportedSupported
Infrared portSupportedNot supported

🧭 Sensors

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
SensorsAccelerometer
Ambient light sensor
Compass
Fingerprint sensor
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Battery typeLi-Ion: lithium-ion (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity4600 mAh5000 mAh
Charger, watts18W (9V/2A) Wired fast charging30W Wired fast charging
5W Reverse charging by cable
Quick Charge 4
USB Power Delivery 3.0
Inductive / wireless chargingfeature not registeredNot supported
Talk time autonomy34 hours (1.4 days)feature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• 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
• Colors: Galactic Black, Glacier Silver

☢️ Radiation rate

Asus Zenfone 3 Ultra (ZU680KL 64GB)Asus Zenfone 8 Flip (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

We use cookies to provide and improve our services. By using our site, you consent to cookies. See more details: Privacy policy.