Xiaomi Mi 9 (64GB) vs Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)

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Side by side comparison between Xiaomi Mi 9 vs Asus Zenfone 4 phones, differences, pros, cons and full specifications. What's the better?

3/8/2019 8:10 PM, updated: 11/15/2020 4:31 PM

Compare Asus Zenfone 4 X Xiaomi Mi 9 (64GB) 16Points

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

06Points Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) Compare Xiaomi Mi 9 X

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

12.2
MP

8mp

4GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Xiaomi Mi 9 (64GB)

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!

16 Advantages Xiaomi Mi 9 (64GB)	vs	6 Advantages Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
+2.84GHz 64bit Octa-core (7nm)25% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core
+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4X
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+1080x2340 pixels22% Higher resolution screen	vs	1080x1920 pixels
+403 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+6.39"16% Larger screen	vs	5.5"
+(triple camera) 48MP + 16MP + 12MP3 times Higher resolution main camera	vs	(dual camera) 12.2MP + 8MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+1/2" inches28% The larger sensor camera lets you take photos with better depth.	vs	1/2.55" inches
+(front) 20MP149% Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+Android 10Advantage Android 10 is newer and safer	vs	Android 7.1.1 Nougat
+(4G LTE-A) 1024 Mbps71% Faster for surfing the internet and download files	vs	(4G LTE-A) 600 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+27W170% 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.	vs	10W
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
173 grams (6.06 ounces)	vs	+165 grams (5.78 ounces)5% Lighter
7.61 millimeters (0.3 inches)	vs	+7.5 millimeters (0.3 inches)1% Thinner
EIS: Digital stabilization	vs	+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general

31 Common items in both devices

64GB (50GB available) / 64GB (52GB available)

Aluminum frame, glass front/back

16 million

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

HDR photo on both cameras

f/1.8 (aperture)

4K UHD (3840x2160)

+24 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
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Change model		Choose the model
Model	Xiaomi Mi 9 (64GB)	Zenfone 4 (ZE554KL 64GB/4GB NFC)
Other model names	小米9, Xiaomi Mi9 (6GB RAM), M1902F1A, M1902F1G, M1902F1T	Asus Zenfone 4 (NFC version) Snapdragon 630 (4GB RAM)
Country or region available	China, (Global, International)	(Europe), South Africa, China, USA, Hong Kong, Taiwan
Brand	Xiaomi	Asus
Release date	3/1/2019	10/1/2017
Depth	7.61 millimeters (0.3 inches)	7.5 millimeters (0.3 inches)
Size (width x height)	74.67 x 157.5 millimeters (2.94 x 6.2 in)	75.2 x 155.4 millimeters (2.96 x 6.12 in)
Weight	173 grams (6.06 ounces)	165 grams (5.78 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Display type	Super AMOLED	TFT IPS LCD
Screen size	6.39" inches	5.5" inches
Screen-to-body ratio	~85.2% (screen-to-body ratio)	~71.4% (screen-to-body ratio)
Display resolution	1080x2340 pixels	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	403 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 6	Gorilla Glass 3
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
System version	Android 9.0 Pie	Android 7.1.1 Nougat
Firmware update	Android 10	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Chipset	64bit: Qualcomm Snapdragon 855 (SM8150) (7nm)	64bit: Qualcomm Snapdragon 630 SDM630 (14nm)
CPU	Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core)	Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 640 (585MHz)	Qualcomm Adreno 508
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
RAM memory	6GB LPDDR4X	4GB LPDDR4X
Internal storage	64GB (50GB available) UFS 2.1	64GB (52GB available)
External storage	Not supported	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	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) nano-SIM (4FF)
Maximum Download / Upload	1024/150 Mbps	600/150 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	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	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
Primary 4G network	LTE Cat16/13 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (Bands 38, 39, 40) China version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17) TD-LTE (Bands 34, 38, 39, 40, 41)	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)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, 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
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Back camera (main camera)	(triple camera) 48 megapixels 16MP ultrawide f/2.213mm1/3.0"1.0µmPDAF 12MP telephoto f/2.254mm1/3.6"1.0µmPDAF2x-optical-zoom	(dual camera) 12.2 megapixels 8MP 12mm
Main camera resolution	8000x6000 pixels	4032x3024 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	25mm (lens)
Sensor size	1/2" inches	1/2.55" inches
Pixel size	0.8µm pixel	1.4µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS (4-axis): Optical stabilization
Zoom	Digital and optical 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
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Front camera (secondary)	20 megapixels	8 megapixels
Front camera resolution	5184x3840 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	feature not registered	24mm (lens)
Sensor size	feature not registered	feature not registered
Pixel size	0.9µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, OGG, eAAC+
🔌 Connectivity
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	Type-C jack with 3.5mm jack adapter	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
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) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3300 mAh	3300 mAh
Charger, watts	27W Wired fast charging	10W (5V/2A) Wired charging
Inductive / wireless charging	Qi wireless charging	feature not registered
Talk time autonomy	feature not registered	30 hours (1.3 days)
Standby	feature not registered	552 hours (23 days)
➕ Other features
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
Call control	Voice dialing, Voice recorder, Voice commands	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: Piano Black, Lavender Violet, Ocean Blue • MIUI 10 • HDR10/DCI-P3 display • Sapphire glass camera cover • Quick Charge 4+ • Fast wireless charging 20W	• 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
☢️ Radiation rate
	Xiaomi Mi 9 (64GB)	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)
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