Asus Zenfone Zoom S (128GB) vs Xiaomi Redmi Note 9 (128GB/4GB)

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

8/4/2020 2:52 PM, updated: 1/19/2023 2:42 AM

Compare Xiaomi Redmi Note 9 X Asus Zenfone Zoom S (128GB) 12Points

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

12
MP

13mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

15Points Xiaomi Redmi Note 9 (128GB/4GB) Compare Asus Zenfone Zoom S X

Specifications Compare Models Pictures

6.53"
IPS

1080x2340

48
MP

13mp

4GB
RAM

Octa-core

5020
mAh

(Non removable)

What's the better phone? Xiaomi Redmi Note 9 (128GB/4GB)

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!

12 Advantages Asus Zenfone Zoom S (128GB)	vs	15 Advantages Xiaomi Redmi Note 9 (128GB/4GB)
+2GHz 64bit Octa-core1% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (12nm)
+128GB (118GB available)11% More internal storage for applications and files	vs	128GB (106GB available)
+170 grams (5.95 ounces)17% Lighter	vs	199 grams (6.97 ounces)
+8 millimeters (0.31 inches)11% Thinner	vs	8.9 millimeters (0.35 inches)
+Aluminum body, glass frontAdvantage More resistant material	vs	Plastic body, glass front
+AMOLEDAdvantage AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+401 PPI2% 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
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.8 (aperture)
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
4GB LPDDR3	vs	+4GB LPDDR4XAdvantage This RAM type is better and more efficient.
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
5.5"	vs	+6.53"19% Larger screen
(dual camera) 12MP + 12MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP150% Higher resolution main camera
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2.5" inches	vs	+1/2" inches25% The larger sensor camera lets you take photos with better depth.
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 unlock 2DAdvantage Sensors help you use the device
5000 mAh	vs	+5020 mAh1% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
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 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
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+Water repellent nano-coating (don't immerse)Advantage Protection against water allows you talk to your friends in the rain, for example

26 Common items in both devices

16 million

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

HDR photo on both cameras

(front) 13MP

(front) Full HD (1920x1080)

4G LTE / 4G LTE-A

Capacitive

+19 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 Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Change model		Choose the model
Model	Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Other model names	Asus Zenfone Zoom S ZE553KL, Asus Zenfone 3 Zoom	Mi Redmi Note 9 CX296VRD, CX296CIN, M2003J15SS/2003J15SC
Country or region available	(Europe), Indonesia	Brazil, China, India
Brand	Asus	Xiaomi
Release date	5/1/2017	5/12/2020, Announced: 4/30/2020
Depth	8 millimeters (0.31 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	77 x 154.3 millimeters (3.03 x 6.07 in)	77.2 x 162.3 millimeters (3.04 x 6.39 in)
Weight	170 grams (5.95 ounces)	199 grams (6.97 ounces)
Build, materials	Aluminum body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Water repellent nano-coating (don't immerse)
📲 Display
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Display type	AMOLED	TFT IPS LCD
Screen size	5.5" inches	6.53" inches
Screen-to-body ratio	~70.2% (screen-to-body ratio)	~83.5% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	395 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 5
Refresh rate	feature not registered	60Hz
Display features	feature not registered	450nits[typ]
🤖 Operating System
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	Android 8.0 Oreo	Android 11
User Interface	feature not registered	MIUI 11 / 12
⚙️ Processor
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Chipset	64bit: Qualcomm Snapdragon 625 MSM8953 (14nm)	64bit: MediaTek Helio G85 (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 (1GHz)
Performance (benchmark)	feature not registered	AnTuTu: 200451 (v8) Geekbench: 1292 (v5.1)
💽 Memory and storage
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
RAM memory	4GB LPDDR3	4GB LPDDR4X
Internal storage	128GB (118GB available)	128GB (106GB 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 Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
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) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	300/150 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	GSM 850/900/1800/1900
Primary 3G network	TD-SCDMA 1900/2000 UMTS 850/900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 850/900/1800/2100 (Bands 1,3,5,8)	LTE Cat7 (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, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, 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	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Back camera (main camera)	(dual camera) 12 megapixels 12MP f/2.859mm	(quad camera) 48 megapixels 8MP ultrawide f/2.213mm1/4"1.12µm118° 2MP macro f/2.41.75µmAF 2MP depth f/2.41/5"1.7µm
Main camera resolution	4000x3000 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 24 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.7 (aperture)	f/1.8 (aperture)
Focal length	25mm (lens)	26mm (lens)
Sensor size	1/2.5" inches	1/2" inches
Pixel size	1.4µm pixel	0.8µm 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	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Front camera (secondary)	13 megapixels	13 megapixels
Front camera resolution	4128x3096 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.3 (aperture)
Focal length	feature not registered	29mm (lens)
Sensor size	1/3" inches	1/3.06" inches
Pixel size	1.12µm pixel	1.12µm pixel
🔉 Sound and multimedia
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	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, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
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	Not supported	USB Type-C (reversible)
Bluetooth	4.2 + 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	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Not supported
Infrared port	Supported	Supported
🧭 Sensors
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	5020 mAh
Charger, watts	18W Wired fast charging	18W Wired fast charging 9W Reverse charging by cable
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	48 hours (2 days)	33 hours (1.4 days)
Standby	1008 hours (42 days)	feature not registered
➕ Other features
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
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, Silver, Rose Gold • ASUS ZenUI 3.0 • 2.5D glass screen • 500nits brightness screen • Sony IMX362 back camera sensor • Sony IMX214 front camera sensor • DTS sound enhancement • 24-bit/192kHz audio • 100GB Google Drive	• Colors: Forest Green, Midnight Grey, Polar White • 22.5W charger (18W phone support)
☢️ Radiation rate
	Asus Zenfone Zoom S (128GB)	Redmi Note 9 (128GB/4GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.84W/kg (head), 0.9W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.8W/kg (head), 1.14W/kg (body)