Bq Aquaris X2 (64GB) vs Samsung Galaxy A51 (SM-A515F/DS)

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Side by side comparison between Bq Aquaris X2 vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?

1/4/2020 6:17 PM, updated: 11/21/2022 8:39 AM

Compare Samsung Galaxy A51 X Bq Aquaris X2 (64GB) 07Points

Specifications Compare Models Pictures

5.65"
IPS

1080x2160

12
MP

8mp

4GB
RAM

Octa-core

3100
mAh

(Non removable)

17Points Samsung Galaxy A51 (SM-A515F/DS) Compare Bq Aquaris X2 X

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

4GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 (SM-A515F/DS)

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!

7 Advantages Bq Aquaris X2 (64GB)	vs	17 Advantages Samsung Galaxy A51 (SM-A515F/DS)
+163 grams (5.71 ounces)6% Lighter	vs	172 grams (6.02 ounces)
+427 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	405 PPI
+Dual-LED on main camera and LED on front cameraAdvantage The Dual-LED on main camera and LED on front camera helps in dark places or in low light	vs	LED flash
+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)
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Water splash resistant (don't immerse)Advantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
1.8GHz 64bit Octa-core	vs	+2.3GHz 64bit Octa-core (10nm)16% More powerful processor, you can open your applications faster
64GB (51GB available)	vs	+128GB (107GB available)110% More internal storage for applications and files
Until 256GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards
8.25 millimeters (0.32 inches)	vs	+7.9 millimeters (0.31 inches)4% Thinner
LTPS IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
1080x2160 pixels	vs	+1080x2400 pixels11% Higher resolution screen
5.65"	vs	+6.5"15% Larger screen
(dual camera) 12MP + 5MP	vs	+(quad camera) 48MP + 12MP + 5MP + 5MP3 times Higher resolution main camera
1/2.8" inches	vs	+1/2" inches40% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 8.1 Oreo	vs	+Android 13Advantage Android 13 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+ANT+Advantage Sensors help you use the device
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
3100 mAh	vs	+4000 mAh29% 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.

28 Common items in both devices

4GB LPDDR4X

16 million

Only digital zoom

PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

4K UHD (3840x2160)

+21 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
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Change model		Choose the model
Model	Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Other model names	BQ Aquaris X2 4GB RAM + 64GB	Samsung Galaxy A51 SM-A515F/DS
Country or region available	Spain, (Europe)	(Latin America)
Brand	Bq	Samsung
Release date	6/1/2018	12/16/2019, Announced: 12/12/2019
Depth	8.25 millimeters (0.32 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	72.3 x 150.7 millimeters (2.85 x 5.93 in)	73.6 x 158.5 millimeters (2.9 x 6.24 in)
Weight	163 grams (5.71 ounces)	172 grams (6.02 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Water splash resistant (don't immerse)	Not supported
📲 Display
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Display type	LTPS IPS LCD	Super AMOLED
Screen size	5.65" inches	6.5" inches
Screen-to-body ratio	~75.6% (screen-to-body ratio)	~87.4% (screen-to-body ratio)
Display resolution	1080x2160 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	427 PPI	405 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Gorilla Glass 3
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Always-On Display
🤖 Operating System
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
System version	Android 8.1 Oreo	Android 10
Firmware update	feature not registered	Android 13
User Interface	feature not registered	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Chipset	64bit: Qualcomm Snapdragon 636 SDM636 (14nm)	64bit: Samsung Exynos 9611 (10nm)
CPU	Octa-core, 2 processors: 4x 1.8GHz Kryo 260 Gold (Quad-core) 4x 1.6GHz Kryo 260 Silver (Quad-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 509	ARM Mali-G72 MP3 (850MHz)
Performance (benchmark)	feature not registered	AnTuTu: 113051 (v7), 175363 (v8) Geekbench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen)
💽 Memory and storage
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
RAM memory	4GB LPDDR4X	4GB LPDDR4X
Internal storage	64GB (51GB available)	128GB (107GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
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	300/50 Mbps	600/150 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	UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 (Bands 1,3,7,20)	LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Back camera (main camera)	(dual camera) 12 megapixels 5MP depth 1/5"1.12µm	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm
Main camera resolution	4000x3000 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED on main camera and LED on front camera	LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	1/2.8" inches	1/2" inches
Pixel size	1.29µm 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
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Front camera (secondary)	8 megapixels	32 megapixels
Front camera resolution	3264x2448 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	LED	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	1.12µm pixel	0.8µm pixel
🔉 Sound and multimedia
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
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, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
USB	USB 2.0 Type-C reversible connector	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C SlimPort®	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	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3100 mAh	4000 mAh
Charger, watts	Wired 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
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
Call control	Voice dialing, Voice recorder	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: Carbon black, White sand gold • Android One • USB OTG On-The-Go • 2.5D curved glass screen • Aluminum frame • Plastic back • Fast battery charging • Quick Charge 3.0 • 24-bit/192kHz audio • IP52 certified: protection against dust and splashing	• Colors: Prism, Crush Black, White, Blue, Pink
☢️ Radiation rate
	Bq Aquaris X2 (64GB)	Galaxy A51 (SM-A515F/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.495W/kg (head), 1.451W/kg (body)	0.369W/kg (head), 1.59W/kg (body)