Realme X2 Pro (64GB) vs Samsung Galaxy S21

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Side by side comparison between Realme X2 Pro vs Samsung Galaxy S21 phones, differences, pros, cons and full specifications. What's the better?

1/15/2021 7:53 PM, updated: 5/19/2025 11:27 AM

Compare Samsung Galaxy S21 X Realme X2 Pro (64GB) 06Points

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

64.1
MP

16mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

23Points Samsung Galaxy S21 Compare Realme X2 Pro X

Specifications Compare Models Pictures

6.2"
AMOLED

1080x2400

12.2
MP

10mp

8GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21

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!

6 Advantages Realme X2 Pro (64GB)	vs	23 Advantages Samsung Galaxy S21
+6.5"5% Larger screen	vs	6.2"
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+1/1.7" inches4% The larger sensor camera lets you take photos with better depth.	vs	1/1.76" inches
+(front) 16MP59% Higher resolution secondary camera to take pictures and selfies	vs	(front) 10MP
+50W100% 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	25W
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
2.96GHz 64bit Octa-core (7nm)	vs	+2.9GHz 64bit Octa-core (5nm)3% More powerful processor, you can open your applications faster
6GB LPDDR4X	vs	+8GB LPDDR533% More RAM memory. Typically more responsive and better for multitasking.
64GB (50GB available)	vs	+128GB (104GB available)108% More internal storage for applications and files
UFS 2.1	vs	+UFS 3.1Advantage Fastest write and read storage.
199 grams (6.97 ounces)	vs	+169 grams (5.92 ounces)18% Lighter
8.7 millimeters (0.34 inches)	vs	+7.9 millimeters (0.31 inches)10% Thinner
90Hz	vs	+120Hz33% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
405 PPI	vs	+424 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(quad camera) 64.1MP + 13MP + 8MP + 2MP	vs	+(triple camera) 12.2MP + 64MP + 12MP1% Higher resolution main camera
EIS: Digital stabilization	vs	+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 10	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE	vs	+5G Sub6Advantage The 5G Sub6 network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G Sub6) 5000 Mbps32 times Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Qi wireless charging (Qi/PMA)Advantage Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)	vs	+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

30 Common items in both devices

Aluminum frame, glass front/back / Aluminum body, glass front, plastic back

Super AMOLED / Dynamic AMOLED

HDR10+

16 million

1080x2400 pixels

Digital and optical zoom

PDAF: phase detection autofocus / PDAF: phase detection autofocus 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
	Realme X2 Pro (64GB)	Galaxy S21
Change model
Model	Realme X2 Pro (64GB)	Galaxy S21
Other model names	Oppo Realme X2 Pro RMX1931 (6GB RAM + 64GB)	Galaxy S21 5G SM-G991B/DS
Country or region available	(Europe), (Global, International), China	(Global, International)
Brand	Realme	Samsung
Release date	10/1/2019	1/29/2021, Announced: 1/14/2021
Depth	8.7 millimeters (0.34 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	75.7 x 161 millimeters (2.98 x 6.34 in)	71.2 x 151.7 millimeters (2.8 x 5.97 in)
Weight	199 grams (6.97 ounces)	169 grams (5.92 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum body, glass front, plastic back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Realme X2 Pro (64GB)	Galaxy S21
Display type	Super AMOLED	Dynamic AMOLED
Screen size	6.5" inches	6.2" inches
Screen-to-body ratio	~83.7% (screen-to-body ratio)	~85.9% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	405 PPI	424 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass Victus
Refresh rate	90Hz	120Hz
Display features	1000nits[peak] HDR10+	1300nits[peak] HDR10+ Always-On Display
🤖 Operating System
	Realme X2 Pro (64GB)	Galaxy S21
System version	Android 9.0 Pie	Android 11
Firmware update	Android 10	Android 15
User Interface	feature not registered	One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0
⚙️ Processor
	Realme X2 Pro (64GB)	Galaxy S21
Chipset	64bit: Qualcomm Snapdragon 855+ (SM8150-AC) (7nm)	64bit: Samsung Exynos 2100 (5nm)
CPU	Octa-core, 3 processors: 1x 2.96GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.8GHz Kryo 485 (Quad-core)	Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 640 (672MHz)	ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Realme X2 Pro (64GB)	Galaxy S21
RAM memory	6GB LPDDR4X	8GB LPDDR5
Internal storage	64GB (50GB available) UFS 2.1	128GB (104GB available) UFS 3.1
External storage	Not supported	Not supported
📶 Mobile networks
	Realme X2 Pro (64GB)	Galaxy S21
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM
Maximum Download / Upload	150/50 Mbps	5000/1920 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
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	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE	LTE Cat24 () TD-LTE () VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 ()
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	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, SA/NSA, Sub6
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 Cat24 () TD-LTE () VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Realme X2 Pro (64GB)	Galaxy S21
Back camera (main camera)	(quad camera) 64.1 megapixels 13MP telephoto f/2.552mm1/3.4"1.0µmPDAF2x-optical-zoom 8MP ultrawide f/2.216mm1/3.2"1.4µmPDAF 2MP depth f/2.41/5"1.75µm	(triple camera) 12.2 megapixels 64MP telephoto f/2.029mm1/1.72"0.8µmPDAFOIS1.1x-optical-zoom3x-hybrid-zoom 12MP ultrawide f/2.213mm120°1/2.55"1.4µmSuper-Steady-video
Main camera resolution	9248x6936 pixels	4032x3024 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	8K UHD (7680x4320) 24 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	26mm (lens)	26mm (lens)
Sensor size	1/1.7" inches	1/1.76" inches
Pixel size	0.8µm pixel	1.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus on both cameras
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS: Optical stabilization
Zoom	Digital and optical zoom	Digital and optical 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/video on both cameras
Camera extras	feature not registered	4K@60fps 1080p@240fps 720p@960fps
📸 Front camera
	Realme X2 Pro (64GB)	Galaxy S21
Front camera (secondary)	16 megapixels	10 megapixels
Front camera resolution	4608x3456 pixels	3872x2592 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/3.24" inches
Pixel size	1µm pixel	1.22µm pixel
🔉 Sound and multimedia
	Realme X2 Pro (64GB)	Galaxy S21
Loudspeaker	Supported	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG
Active noise cancellation	2 microphones or more	2 microphones
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
	Realme X2 Pro (64GB)	Galaxy S21
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C reversible connector
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/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Realme X2 Pro (64GB)	Galaxy S21
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Realme X2 Pro (64GB)	Galaxy S21
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	4000 mAh
Charger, watts	50W Wired fast charging	25W Wired fast charging USB Power Delivery 3.0
Inductive / wireless charging	Not supported	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Realme X2 Pro (64GB)	Galaxy S21
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: Lunar White, Neptune Blue, Red Master Edition, Gray Master Edition • ColorOS 6.1 • DCI-P3 100% display • Dolby Atmos (24-bit/192kHz) • SuperVOOC Flash Charge: 100% in 35min	• Colors: Phantom Gray, White, Violet, Pink • Samsung Pay (Visa, MasterCard) • Samsung DeX
☢️ Radiation rate
	Realme X2 Pro (64GB)	Galaxy S21
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.456W/kg (head), 1.509W/kg (body)