Asus Zenfone 4 Selfie (ZD553KL 32GB) vs Xiaomi Mi 9 (128GB/6GB)

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

3/8/2019 8:08 PM, updated: 3/16/2020 9:01 PM

Compare Xiaomi Mi 9 X Asus Zenfone 4 Selfie (ZD553KL 32GB) 06Points

Specifications Compare Models Pictures

5.5"
IPS

720x1280

16
MP

20mp

3GB
RAM

Octa-core

3000
mAh

(Non removable)

20Points Xiaomi Mi 9 (128GB/6GB) Compare Asus Zenfone 4 Selfie X

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Xiaomi Mi 9 (128GB/6GB)

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!

6 Advantages Asus Zenfone 4 Selfie (ZD553KL 32GB)	vs	20 Advantages Xiaomi Mi 9 (128GB/6GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+144 grams (5.04 ounces)20% Lighter	vs	173 grams (6.06 ounces)
+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light	vs	Dual-LED flash
+(dual front camera) 20MP + 8MP40% Higher resolution secondary camera to take pictures and selfies	vs	(front) 20MP
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
1.4GHz 64bit Octa-core	vs	+2.84GHz 64bit Octa-core (7nm)99% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+128GB (109GB available)4 times More internal storage for applications and files
7.9 millimeters (0.31 inches)	vs	+7.61 millimeters (0.3 inches)4% Thinner
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
720x1280 pixels	vs	+1080x2340 pixels174% Higher resolution screen
267 PPI	vs	+403 PPI51% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6.39"16% Larger screen
(back) 16MP	vs	+(triple camera) 48MP + 16MP + 12MP4 times Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
Android 7.0 Nougat	vs	+Android 10Advantage Android 10 is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 1024 Mbps6 times Faster for surfing the internet and download files
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3000 mAh	vs	+3300 mAh10% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

20 Common items in both devices

16 million

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

EIS: Digital stabilization

HDR photo on both cameras

(front) Full HD (1920x1080)

4G LTE / 4G LTE-A

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 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Change model		Choose the model
Model	Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Other model names	Asus Zenfone 4 Selfie ZD553KL-5A090BR (3GB RAM)	小米9, Xiaomi Mi9 (6GB RAM), M1902F1A, M1902F1G, M1902F1T
Country or region available	Brazil	China, (Global, International)
Brand	Asus	Xiaomi
Release date	10/1/2017	3/1/2019
Depth	7.9 millimeters (0.31 inches)	7.61 millimeters (0.3 inches)
Size (width x height)	75.9 x 155.66 millimeters (2.99 x 6.13 in)	74.67 x 157.5 millimeters (2.94 x 6.2 in)
Weight	144 grams (5.04 ounces)	173 grams (6.06 ounces)
Build, materials	feature not registered	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Display type	TFT IPS LCD	Super AMOLED
Screen size	5.5" inches	6.39" inches
Screen-to-body ratio	~70.6% (screen-to-body ratio)	~85.2% (screen-to-body ratio)
Display resolution	720x1280 pixels	1080x2340 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Gorilla Glass 6
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
System version	Android 7.0 Nougat	Android 9.0 Pie
Firmware update	feature not registered	Android 10
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 430 MSM8937 (28nm)	64bit: Qualcomm Snapdragon 855 (SM8150) (7nm)
CPU	Octa-core, 2 processors: 4x 1.4GHz ARM Cortex-A53 (Quad-core) 4x 1.1GHz ARM Cortex-A53 (Quad-core)	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)
GPU graphical controller	Qualcomm Adreno 505 450Mhz	Qualcomm Adreno 640 (585MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
RAM memory	3GB LPDDR3	6GB LPDDR4X
Internal storage	32GB (22GB available)	128GB (109GB available) UFS 2.1
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	1024/150 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	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 800/850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (Bands 1,3,5,7,8,18,19,26,28) TD-LTE (Bands 38,41)	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)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	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
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 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Back camera (main camera)	16 megapixels	(triple camera) 48 megapixels 16MP ultrawide f/2.213mm1/3.0"1.0µmPDAF 12MP telephoto f/2.254mm1/3.6"1.0µmPDAF2x-optical-zoom
Main camera resolution	4608x3456 pixels	8000x6000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash on both cameras	Dual-LED flash
Focal aperture	feature not registered	f/1.8 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Digital and optical 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 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Front camera (secondary)	(dual front camera) 20 megapixels 8MP 12mm120°	20 megapixels
Front camera resolution	5472x3648 pixels	5184x3840 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	LED	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	31mm lens	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	0.9µm pixel
🔉 Sound and multimedia
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
USB	MicroUSB 2.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	Not supported
Bluetooth	4.1 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Not supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	3300 mAh
Charger, watts	Wired charging	27W Wired fast charging
Inductive / wireless charging	feature not registered	Qi wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
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: Black, Green, Rose pink, Sunlight Gold • 2.5D glass screen • ASUS ZenUI 4.0 • PixelMaster 4.0	• Colors: Piano Black, Lavender Violet, Ocean Blue • MIUI 10 • HDR10/DCI-P3 display • Sapphire glass camera cover • Quick Charge 4+ • Fast wireless charging 20W
☢️ Radiation rate
	Asus Zenfone 4 Selfie (ZD553KL 32GB)	Xiaomi Mi 9 (128GB/6GB)
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