Xiaomi Mi 9T (128GB) vs Samsung Galaxy A31 (SM-A315F)

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Side by side comparison between Xiaomi Mi 9T vs Samsung Galaxy A31 phones, differences, pros, cons and full specifications. What's the better?

5/12/2020 10:30 AM, updated: 12/15/2021 7:49 PM

Compare Samsung Galaxy A31 X Xiaomi Mi 9T (128GB) 15Points

Specifications Compare Models Pictures

6.39"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

09Points Samsung Galaxy A31 (SM-A315F) Compare Xiaomi Mi 9T X

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

48
MP

20mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Xiaomi Mi 9T (128GB)

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!

15 Advantages Xiaomi Mi 9T (128GB)	vs	9 Advantages Samsung Galaxy A31 (SM-A315F)
+2.2GHz 64bit Octa-core (8nm)25% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (12nm)
+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4X
+UFS 2.1Advantage Fastest write and read storage.	vs	eMMC 5.1
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+HDR10Advantage The HDR10 display provides vibrant colors and more details	vs	Not supported
+(triple camera) 48MP + 8MP + 13MP5% Higher resolution main camera	vs	(quad camera) 48MP + 8MP + 5MP + 5MP
+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
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(4G LTE-A) 800 Mbps4 times Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+18W20% 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	15W
+2 slots (Dual-SIM)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
191 grams (6.69 ounces)	vs	+185 grams (6.48 ounces)3% Lighter
8.8 millimeters (0.35 inches)	vs	+8.6 millimeters (0.34 inches)2% Thinner
AMOLED	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
1080x2340 pixels	vs	+1080x2400 pixels3% Higher resolution screen
403 PPI	vs	+411 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.39"	vs	+6.4"1% Larger screen
Android 10	vs	+Android 11Advantage Android 11 is newer and safer
4000 mAh	vs	+5000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use

27 Common items in both devices

128GB (109GB available) / 128GB (104GB available)

60Hz

16 million

PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

1/2" inches

+20 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 9T (128GB)	Galaxy A31 (SM-A315F)
Change model		Choose the model
Model	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Other model names	Xiaomi Mi 9T (Global version) M1903F10G, Xiaomi Redmi K20	Galaxy A31 SM-A315F (Single-Sim) NFC (128GB + 4GB RAM)
Country or region available	(Global, International), (Europe), Hong Kong, Taiwan	South Africa
Brand	Xiaomi	Samsung
Release date	6/1/2019	4/27/2020, Announced: 3/24/2020
Depth	8.8 millimeters (0.35 inches)	8.6 millimeters (0.34 inches)
Size (width x height)	74.3 x 156.7 millimeters (2.93 x 6.17 in)	73.1 x 159.3 millimeters (2.88 x 6.27 in)
Weight	191 grams (6.69 ounces)	185 grams (6.48 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Display type	AMOLED	Super AMOLED
Screen size	6.39" inches	6.4" inches
Screen-to-body ratio	~86.1% (screen-to-body ratio)	~84.9% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	403 PPI	411 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	60Hz	60Hz
Display features	600nits[typ] HDR10	Not supported
🤖 Operating System
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
System version	Android 9.0 Pie	Android 10
Firmware update	Android 10	Android 11
User Interface	feature not registered	One UI 2.5 / 3.1
⚙️ Processor
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Chipset	64bit: Qualcomm Snapdragon 730 (SM7150-AA) (8nm)	64bit: MediaTek Helio P65 (MT6768) (12nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core)	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 618 (610MHz)	ARM Mali-G52 MC2 (820MHz)
Performance (benchmark)	feature not registered	AnTuTu: 151815 (v8) Geekbench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen)
💽 Memory and storage
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
RAM memory	6GB LPDDR4X	4GB LPDDR4X
Internal storage	128GB (109GB available) UFS 2.1	128GB (104GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	800/150 Mbps	150/50 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	UMTS 850/900/1700/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat15/13 (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (Bands 38, 40) VoLTE	LTE Cat4 (1, 2, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41) VoLTE
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
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Back camera (main camera)	(triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm	(quad camera) 48 megapixels 8MP ultrawide f/2.2123°1/4"1.12µm 5MP macro f/2.4 5MP depth f/2.4
Main camera resolution	8000x6000 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	26mm lens	26mm lens
Sensor size	1/2" inches	1/2" inches
Pixel size	0.8µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital 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	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 9T (128GB)	Galaxy A31 (SM-A315F)
Front camera (secondary)	20 megapixels *Motorized pop-up camera (slider)	20 megapixels
Front camera resolution	5184x3840 pixels	5184x3840 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	0.8µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
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.265, H.264, H.263, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
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	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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	5000 mAh
Charger, watts	18W (9V/2A) Wired fast charging	15W 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
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
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: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+	• Colors: Prism Black, Prism Blue, Prism Red, Prism White
☢️ Radiation rate
	Xiaomi Mi 9T (128GB)	Galaxy A31 (SM-A315F)
SAR 1.6W/kg (USA, Mexico, etc.)	1.34W/kg (head), 1.51W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.488W/kg (head), 1.68W/kg (body)