Asus Zenfone 3 Ultra (ZU680KL 32GB) vs Xiaomi Redmi 4A (16GB)

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

3/27/2017 8:12 PM, updated: 5/11/2020 10:17 AM

Compare Xiaomi Redmi 4A X Asus Zenfone 3 Ultra (ZU680KL 32GB) 23Points

Specifications Compare Models Pictures

6.8"
IPS+

1080x1920

23
MP

8mp

3GB
RAM

Octa-core

4600
mAh

(Non removable)

01Point Xiaomi Redmi 4A (16GB) Compare Asus Zenfone 3 Ultra X

Specifications Compare Models Pictures

5"
IPS

720x1280

13
MP

5mp

2GB
RAM

Quad-core

3120
mAh

(Non removable)

What's the better phone? Asus Zenfone 3 Ultra (ZU680KL 32GB)

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!

23 Advantages Asus Zenfone 3 Ultra (ZU680KL 32GB)	vs	1 Advantage Xiaomi Redmi 4A (16GB)
+1.8GHz 64bit Octa-core41% More powerful processor, you can open your applications faster	vs	1.4GHz 64bit Quad-core
+3GB LPDDR450% More RAM memory. Typically more responsive and better for multitasking.	vs	2GB LPDDR3
+32GB (24GB available)140% More internal storage for applications and files	vs	16GB (10GB available)
+6.8 millimeters (0.27 inches)25% Thinner	vs	8.5 millimeters (0.33 inches)
+1080x1920 pixels125% Higher resolution screen	vs	720x1280 pixels
+324 PPI10% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	294 PPI
+6.8"36% Larger screen	vs	5"
+(back) 23MP79% Higher resolution main camera	vs	(back) 13MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+f/2.0 (aperture)10% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.2 (aperture)
+(front) 8MP63% Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera	vs	(front) HD (1280x720)
+Android 8.0 OreoAdvantage Android 8.0 Oreo is newer and safer	vs	Android 6.0.1 Marshmallow
+(4G LTE-A) 300 Mbps100% Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+Fingerprint sensorAdvantage Sensors help you use the device	vs	Not supported
+4600 mAh47% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3120 mAh
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+4.2 + A2DPAdvantage Bluetooth 4.2 + A2DP is newer and faster	vs	4.1 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
+Gorilla Glass 4Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
233 grams (8.16 ounces)	vs	+132 grams (4.62 ounces)77% Lighter

20 Common items in both devices

Until 256GB microSD, microSDXC

TFT Super IPS+ / TFT IPS LCD

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / Autofocus

4G LTE-A / 4G LTE

Capacitive

+13 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 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Change model		Choose the model
Model	Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Other model names	Asus Zenfone 3 Ultra 3GB/32GB ZU680KL Dual-Sim, Asus Mercury	Xiaomi Redmi 4a 2016111, Redmi 4a 2016117 Global
Country or region available	(Global, International)	(Global, International), Saudi Arabia, Brazil, China, United Arab Emirates, (Europe), India, Indonesia, Malaysia, Russia, Vietnam
Brand	Asus	Xiaomi
Release date	8/1/2016	11/11/2016
Depth	6.8 millimeters (0.27 inches)	8.5 millimeters (0.33 inches)
Size (width x height)	93.9 x 186.4 millimeters (3.7 x 7.34 in)	70.4 x 139.9 millimeters (2.77 x 5.51 in)
Weight	233 grams (8.16 ounces)	132 grams (4.62 ounces)
Build, materials	feature not registered	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Display type	TFT Super IPS+	TFT IPS LCD
Screen size	6.8" inches	5" inches
Screen-to-body ratio	~72.8% (screen-to-body ratio)	~70% (screen-to-body ratio)
Display resolution	1080x1920 pixels	720x1280 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	324 PPI	294 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Not supported
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
System version	Android 6.0.1 Marshmallow	Android 6.0.1 Marshmallow
Firmware update	Android 8.0 Oreo	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Chipset	64bit: Qualcomm Snapdragon 652 MSM8976 (28nm)	64bit: Qualcomm Snapdragon 425 MSM8917 (28nm)
CPU	Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 510 600Mhz	Qualcomm Adreno 308 500Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
RAM memory	3GB LPDDR4	2GB LPDDR3
Internal storage	32GB (24GB available)	16GB (10GB 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 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
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) micro-SIM (3FF) and nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	150/50 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	Global version: UMTS 800/850/900/1900/2100 China version: CDMA2000, TD-SCDMA 1900/2000 UMTS 800/850/900/1900/2100	Global model: UMTS 850/900/1900/2100 India model: UMTS 900/2100 Asia model: TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	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)	LTE Cat4 Global/Asia model: LTE 800/850/1700/1800/2100/2600 (Bands 1,3,4,5,7,20) TD-LTE 2300/2600 (Bands 38,40) India model: LTE 850/1800 (Bands 3,5) TD-LTE 2300 (Bands 40)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
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 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Back camera (main camera)	23 megapixels	13 megapixels
Main camera resolution	5520x4140 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 24 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.6" inches	feature not registered
Pixel size	1.12µm pixel	feature not registered
Autofocus	LDAF/PDAF: laser/phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	EIS: Digital 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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Front camera (secondary)	8 megapixels	5 megapixels
Front camera resolution	3264x2448 pixels	2560x1920 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
USB	USB 2.0 Type-C reversible connector	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C SlimPort®	Not supported
Bluetooth	4.2 + A2DP	4.1 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Not supported
Infrared port	Supported	Supported
🧭 Sensors
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4600 mAh	3120 mAh
Charger, watts	18W (9V/2A) Wired fast charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	34 hours (1.4 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
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: 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: Gold, Rose Gold, Dark Gray • MIUI 8 • VoLTE
☢️ Radiation rate
	Asus Zenfone 3 Ultra (ZU680KL 32GB)	Redmi 4A (16GB)
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