Asus Zenfone 3 (5.2 ZE520KL 32GB) vs Xiaomi Redmi 9 (64GB NFC)

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Side by side comparison between Asus Zenfone 3 vs Xiaomi Redmi 9 phones, differences, pros, cons and full specifications. What's the better?

11/28/2020 6:11 PM, updated: 3/13/2023 9:26 AM

Compare Xiaomi Redmi 9 X Asus Zenfone 3 (5.2 ZE520KL 32GB) 10Points

Specifications Compare Models Pictures

5.2"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

Octa-core

2650
mAh

(Non removable)

14Points Xiaomi Redmi 9 (64GB NFC) Compare Asus Zenfone 3 X

Specifications Compare Models Pictures

6.53"
IPS

1080x2340

13
MP

8mp

4GB
RAM

Octa-core

5020
mAh

(Non removable)

What's the better phone? Xiaomi Redmi 9 (64GB 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 3 (5.2 ZE520KL 32GB)	vs	14 Advantages Xiaomi Redmi 9 (64GB NFC)
+2GHz 64bit Octa-core (14nm)1% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (12nm)
+144 grams (5.04 ounces)38% Lighter	vs	198 grams (6.93 ounces)
+7.7 millimeters (0.3 inches)18% Thinner	vs	9.1 millimeters (0.36 inches)
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+424 PPI7% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	395 PPI
+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
+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)
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
3GB LPDDR3	vs	+4GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
32GB (24GB available)	vs	+64GB (49GB available)104% More internal storage for applications and files
Until 256GB microSD, microSDXC	vs	+Until 512GB microSD, microSDXC100% More external storage for files using memory cards
1080x1920 pixels	vs	+1080x2340 pixels22% Higher resolution screen
5.2"	vs	+6.53"26% Larger screen
(back) 16MP	vs	+(quad camera) 13MP + 8MP + 5MP + 2MP74% Higher resolution main camera
Android 8.0 Oreo	vs	+Android 11Advantage Android 11 is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 300 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
2650 mAh	vs	+5020 mAh89% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+18W80% 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.
4.2 + 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

30 Common items in both devices

eMMC 5.1

TFT Super IPS+ / TFT IPS LCD

60Hz

16 million

Only digital zoom

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

HDR photo on both cameras

+23 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 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Change model		Choose the model
Model	Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Other model names	Zenfone 3 ZE520KL 3GB/32GB 5.2" Dual-SIM	Xiaomi Redmi 9 (Global) M2004J19G
Country or region available	(Global, International), Brazil, China, Philippines, India	(Europe), (Global, International)
Brand	Asus	Xiaomi
Release date	7/12/2016	6/10/2020
Depth	7.7 millimeters (0.3 inches)	9.1 millimeters (0.36 inches)
Size (width x height)	73.98 x 146.87 millimeters (2.91 x 5.78 in)	77.01 x 163.32 millimeters (3.03 x 6.43 in)
Weight	144 grams (5.04 ounces)	198 grams (6.93 ounces)
Build, materials	Aluminum body, glass front, plastic back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Display type	TFT Super IPS+	TFT IPS LCD
Screen size	5.2" inches	6.53" inches
Screen-to-body ratio	~68.6% (screen-to-body ratio)	~83.2% (screen-to-body ratio)
Display resolution	1080x1920 pixels (16:9)	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	424 PPI	395 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	2.5D glass	400nits[typ]
🤖 Operating System
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	Android 8.0 Oreo	Android 11
User Interface	ZenUI 3.0	MIUI 12
⚙️ Processor
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Chipset	64bit: Qualcomm Snapdragon 625 (MSM8953) (14nm)	64bit: MediaTek Helio G80 (MT6769V/CU) (12nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 506 (650MHz)	ARM Mali-G52 MC2 (950MHz)
Performance (benchmark)	feature not registered	AnTuTu: 201829 (v8) Geekbench: 1325 (v5.1)
💽 Memory and storage
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
RAM memory	3GB LPDDR3	4GB LPDDR4X
Internal storage	32GB (24GB available) eMMC 5.1	64GB (49GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
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 (dedicated slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 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	Global: UMTS 850/900/1900/2100 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 Global: LTE (1, 2, 3, 5, 7, 8, 20) India: LTE (1, 3, 5, 8) TD-LTE (40) Brazil: LTE (1, 2, 3, 4, 5, 7, 8, 17, 28)	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	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	Global: UMTS 850/900/1900/2100 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A
📷 Camera
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Back camera (main camera)	16 megapixels	(quad camera) 13 megapixels 8MP ultrawide f/2.2118°1/4.0"1.12µm 5MP macro f/2.4 2MP depth f/2.4
Main camera resolution	4608x3456 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 30 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	28mm (lens)
Sensor size	feature not registered	1/3.1" inches
Pixel size	feature not registered	1.12µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection 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 on both cameras
Camera extras	4K@30fps 1080p@30/60fps	feature not registered
📸 Front camera
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
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	feature not registered	27mm (lens)
Sensor size	feature not registered	1/4" inches
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Loudspeaker	Mono sound (not stereo) 24-bit/192kHz	Mono sound (not stereo)
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, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2650 mAh	5020 mAh
Charger, watts	10W (5V/2A) Wired charging	18W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	31 hours (1.3 days)
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
Call control	Voice dialing, Voice recorder, Voice commands	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: Sapphire Black, Moonlight White, Shimmer Gold	• Colors: Carbon Gray, Sunset Purple, Ocean Green, Pink/Blue • 10W charger included
☢️ Radiation rate
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Redmi 9 (64GB NFC)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.913W/kg (head), 0.999W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.711W/kg (head), 1.059W/kg (body)