Xiaomi Redmi Note 8 (128GB/4GB) vs Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)

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Side by side comparison between Xiaomi Redmi Note 8 vs Samsung Galaxy A9 (2018) phones, differences, pros, cons and full specifications. What's the better?

11/9/2019 5:21 PM, updated: 8/23/2020 9:29 PM

Compare Samsung Galaxy A9 (2018) X Xiaomi Redmi Note 8 (128GB/4GB) 09Points

Specifications Compare Models Pictures

6.3"
IPS

1080x2340

48
MP

13mp

4GB
RAM

Octa-core

4000
mAh

(Non removable)

11Points Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) Compare Xiaomi Redmi Note 8 X

Specifications Compare Models Pictures

6.3"
AMOLED

1080x2220

24
MP

24mp

6GB
RAM

Octa-core

3800
mAh

(Non removable)

What's the better phone? Samsung Galaxy A9 2018 (SM-A920F/DS 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!

9 Advantages Xiaomi Redmi Note 8 (128GB/4GB)	vs	11 Advantages Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
+2GHz 64bit Octa-core (11nm)4% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core
+1080x2340 pixels5% Higher resolution screen	vs	1080x2220 pixels
+409 PPI4% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	392 PPI
+(quad camera) 48MP + 8MP + 2MP + 2MP28% Higher resolution main camera	vs	(quad camera) 24MP + 10MP + 8MP + 5MP
+1/2" inches40% The larger sensor camera lets you take photos with better depth.	vs	1/2.8" inches
+(4G LTE-A) 600 Mbps33% Faster for surfing the internet and download files	vs	(4G LTE-A) 450 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+4000 mAh5% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3800 mAh
+P2i certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
4GB LPDDR4X	vs	+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.
190 grams (6.65 ounces)	vs	+183 grams (6.41 ounces)4% Lighter
8.35 millimeters (0.33 inches)	vs	+7.8 millimeters (0.31 inches)7% Thinner
Plastic body, glass front/back	vs	+Aluminum body, glass frontAdvantage More resistant material
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
f/1.8 (aperture)	vs	+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 13MP	vs	+(front) 24MP88% Higher resolution secondary camera to take pictures and selfies
Not supported	vs	+ANT+Advantage Sensors help you use the 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

36 Common items in both devices

128GB (111GB available) / 128GB (110GB available)

eMMC 5.1

Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC

60Hz

16 million

6.3"

LED flash

+29 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
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Change model		Choose the model
Model	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Other model names	Mi Redmi Note 8 (4GB RAM) M1908C3JG, M1908C3JE, M1908C3JH	Galaxy A9 SM-A920F/Dual-Sim (6GB RAM), SM-A920FZBJZTO
Country or region available	(Global, International)	(Europe), Brazil, India, Malaysia
Brand	Xiaomi	Samsung
Release date	9/26/2019	10/11/2018
Depth	8.35 millimeters (0.33 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	75.3 x 158.3 millimeters (2.96 x 6.23 in)	77 x 162.5 millimeters (3.03 x 6.4 in)
Weight	190 grams (6.65 ounces)	183 grams (6.41 ounces)
Build, materials	Plastic body, glass front/back	Aluminum body, glass front
Protection against water and others	P2i certified: water repellent nano-coating	Not supported
📲 Display
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Display type	TFT IPS LCD	Super AMOLED
Screen size	6.3" inches	6.3" inches
Screen-to-body ratio	~81.7% (screen-to-body ratio)	~80.5% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2220 pixels (18.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	409 PPI	392 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 5
Refresh rate	60Hz	60Hz
Display features	Not supported	Not supported
🤖 Operating System
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
System version	Android 9.0 Pie	Android 8.0 Oreo
Firmware update	feature not registered	Android 9.0 Pie
User Interface	feature not registered	feature not registered
⚙️ Processor
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 665 (SM6125) (11nm)	64bit: Qualcomm Snapdragon 660 SDM660 (14nm)
CPU	Octa-core, 2 processors: 4x 2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)
GPU graphical controller	Qualcomm Adreno 610	Qualcomm Adreno 512 650Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
RAM memory	4GB LPDDR4X	6GB LPDDR4X
Internal storage	128GB (111GB available) eMMC 5.1	128GB (110GB available) eMMC 5.1
External storage	Until 512GB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated 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	600/150 Mbps	450/50 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	M1908C3JG version: UMTS 850/900/1700/1900/2100 M1908C3JE, M1908C3JH versions: UMTS 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat12/13 VoLTE M1908C3JG version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (Bands 38, 40) M1908C3JE, M1908C3JH versions: LTE (Bands 1, 3, 5, 8) TD-LTE (Bands 40, 41)	LTE Cat9 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, 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
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Back camera (main camera)	(quad camera) 48 megapixels 8MP ultrawide f/2.213mm1/4"1.12µm 2MP macro f/2.41/5"1.75µm 2MP depth f/2.41/5"1.75µm	(quad camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 8MP ultrawide f/2.412mm1/4.0"1.12µm 5MP depth f/2.2
Main camera resolution	8000x6000 pixels	5656x4240 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.7 (aperture)
Focal length	26mm (lens)	27mm (lens)
Sensor size	1/2" inches	1/2.8" inches
Pixel size	0.8µm pixel	0.9µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: 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
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Front camera (secondary)	13 megapixels	24 megapixels
Front camera resolution	4128x3096 pixels	5656x4240 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	1/2.8" inches
Pixel size	1.12µm pixel	0.9µm pixel
🔉 Sound and multimedia
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
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	Not supported
Bluetooth	4.2 + A2DP	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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4000 mAh	3800 mAh
Charger, watts	18W Wired fast charging	18W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
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: Space Black, Moonlight White, Neptune Blue • MIUI 10	• Colors: Caviar Black, Lemonade Blue, Bubblegum Pink • Samsung Pay • Dolby Atmos
☢️ Radiation rate
	Redmi Note 8 (128GB/4GB)	Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.27W/kg (head), 0.84W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered