Xiaomi Mi 8 Youth (128GB/6GB) vs Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM)

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Side by side comparison between Xiaomi Mi 8 Youth vs Samsung Galaxy M51 phones, differences, pros, cons and full specifications. What's the better?

9/20/2020 10:31 PM, updated: 4/29/2021 1:40 AM

Compare Samsung Galaxy M51 X Xiaomi Mi 8 Youth (128GB/6GB) 04Points

Specifications Compare Models Pictures

6.26"
IPS

1080x2280

12
MP

24mp

6GB
RAM

Octa-core

3350
mAh

(Non removable)

19Points Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM) Compare Xiaomi Mi 8 Youth X

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2340

64
MP

32mp

8GB
RAM

Octa-core

7000
mAh

(Non removable)

What's the better phone? Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM)

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!

4 Advantages Xiaomi Mi 8 Youth (128GB/6GB)	vs	19 Advantages Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM)
+169 grams (5.92 ounces)26% Lighter	vs	213 grams (7.46 ounces)
+7.5 millimeters (0.3 inches)27% Thinner	vs	9.5 millimeters (0.37 inches)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+403 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	385 PPI
2.2GHz 64bit Octa-core	vs	+2.2GHz 64bit Octa-core (8nm)10% More powerful processor, you can open your applications faster
6GB LPDDR4X	vs	+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
TFT IPS LCD	vs	+Super AMOLED PlusAdvantage Super AMOLED Plus display is brighter and more vivid
1080x2280 pixels	vs	+1080x2340 pixels3% Higher resolution screen
6.26"	vs	+6.7"7% Larger screen
(dual camera) 12MP + 5MP	vs	+(quad camera) 64MP + 12MP + 5MP + 5MP4 times Higher resolution main camera
1/2.55" inches	vs	+1/1.73" inches47% The larger sensor camera lets you take photos with better depth.
f/1.9 (aperture)	vs	+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 24MP	vs	+(front) 32MP34% Higher resolution secondary camera to take pictures and selfies
Android 9.0 Pie	vs	+Android 11Advantage Android 11 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 400 Mbps33% Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
3350 mAh	vs	+7000 mAh109% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+25W150% 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.
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

30 Common items in both devices

128GB (110GB available) / 128GB (106GB available)

eMMC 5.1

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus

EIS: Digital stabilization

+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
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Change model		Choose the model
Model	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Other model names	小米8 青春版 M1808D2TT, Xiaomi Mi8, Xiaomi Mi 8X, Xiaomi Platina	Samsung Galaxy M51 SM-M515F/DSN (8GB RAM)
Country or region available	China	India, Malaysia, Turkey
Brand	Xiaomi	Samsung
Release date	9/1/2018	9/11/2020
Depth	7.5 millimeters (0.3 inches)	9.5 millimeters (0.37 inches)
Size (width x height)	75.8 x 156.4 millimeters (2.98 x 6.16 in)	76.3 x 163.9 millimeters (3 x 6.45 in)
Weight	169 grams (5.92 ounces)	213 grams (7.46 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Display type	TFT IPS LCD	Super AMOLED Plus
Screen size	6.26" inches	6.7" inches
Screen-to-body ratio	~82.5% (screen-to-body ratio)	~88.1% (screen-to-body ratio)
Display resolution	1080x2280 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	403 PPI	385 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
System version	Android 8.1 Oreo	Android 10
Firmware update	Android 9.0 Pie	Android 11
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Chipset	64bit: Qualcomm Snapdragon 660 SDM660 (14nm)	64bit: Qualcomm Snapdragon 730G (SM7150-AB) (8nm)
CPU	Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core)
GPU graphical controller	Qualcomm Adreno 512 650Mhz	Qualcomm Adreno 618 (700MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
RAM memory	6GB LPDDR4X	8GB LPDDR4X
Internal storage	128GB (110GB available) eMMC 5.1	128GB (106GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	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	300/50 Mbps	400/50 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	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 (Bands 1,3,5,7,8) TD-LTE (Bands 34,38,39,40,41) VoLTE	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66) 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, 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
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Back camera (main camera)	(dual camera) 12 megapixels 5MP depth f/2.01.12µm	(quad camera) 64 megapixels 12MP ultrawide f/2.2123° 5MP macro f/2.4 5MP depth f/2.4
Main camera resolution	4000x3000 pixels	10120x6328 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.9 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	1/2.55" inches	1/1.73" inches
Pixel size	1.4µm 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	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	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Front camera (secondary)	24 megapixels	32 megapixels
Front camera resolution	5632x4224 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	1.8µm pixel	0.8µm pixel
🔉 Sound and multimedia
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	Type-C jack with 3.5mm jack adapter	3.5mm jack
TV output	Not supported	Not supported
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, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3350 mAh	7000 mAh
Charger, watts	10W (5V/2A) Wired charging	25W Wired fast charging Reverse charging by cable
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	64 hours (2.7 days)
Standby	feature not registered	feature not registered
➕ Other features
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
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: Twilight gold, Dream blue, Deep space gray • MIUI • 19:9 screen • Quick Charge 3.0	• Colors: Celestial Black, Electric Blue • One UI 2.1, 3.1
☢️ Radiation rate
	Xiaomi Mi 8 Youth (128GB/6GB)	Galaxy M51 (SM-M515F/DSN 8GB RAM)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.609W/kg (head), 1.446W/kg (body)