Skip to content

Samsung Galaxy S2 (GT-i9100 16GB) vs Samsung Galaxy A51 5G UW (SM-A516V)

Side by side comparison between Samsung Galaxy S2 vs Samsung Galaxy A51 5G phones, differences, pros, cons with full specifications. What's the better?

,
Compare Samsung Galaxy A51 5G XSamsung Galaxy S2 (GT-i9100 16GB)05Points
Samsung Galaxy S2 (GT-i9100 16GB)
4.3"
AMOLED

480x800

8
MP

2mp

1GB
RAM

32bit Dual

1650
mAh

(Removable)

vs
26PointsSamsung Galaxy A51 5G UW (SM-A516V)Compare Samsung Galaxy S2 X
Samsung Galaxy A51 5G UW (SM-A516V)
6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

64bit Octa

4500
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 5G UW (SM-A516V)

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!

Galaxy S2 (GT-i9100 16GB)5 Advantages Samsung Galaxy S2 (GT-i9100 16GB)vsGalaxy A51 5G UW (SM-A516V)26 Advantages Samsung Galaxy A51 5G UW (SM-A516V)
+116 grams (4.06 ounces)61%
Lighter
vs187 grams (6.55 ounces)
+8.49 millimeters (0.33 inches)2%
Thinner
vs8.7 millimeters (0.34 inches)
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
1.2Ghz 32bit Dual-Corevs+2.4Ghz 64bit Octa-Core3 times
More powerful processor, you can open your applications faster
1GB LPDDR2vs+6GB LPDDR4X5 times
More RAM memory. Typically more responsive and better for multitasking.
16GB (13GB available)vs+128GB (105GB available)7 times
More internal storage for applications and files
Until 32GB microSD, microSDHCvs+Until 1TB microSD, microSDXC31 times
More external storage for files using memory cards
Plastic body, glass frontvs+Aluminum body, glass front, plastic backAdvantage
More resistant material
480x800 pixelsvs+1080x2400 pixels6 times
Higher resolution screen
217 PPIvs+405 PPI87%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.3"vs+6.5"51%
Larger screen
(back) 8MPvs+(quad camera) 48MP + 12MP + 5MP + 5MP8 times
Higher resolution main camera
Not supportedvs+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
1/3.2" inchesvs+1/2" inches60%
The larger sensor camera lets you take photos with better depth.
f/2.6 (aperture)vs+f/2.0 (aperture)30%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 2MPvs+(front) 32MP16 times
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
(front) VGA (640x480)vs+(front) 4K UHD (3840x2160)26 times
More image quality for recording videos with the secondary camera
Android 4.1.2 Jelly Beanvs+Android 10Advantage
Android 10 is newer and safer
3G+ HSPA+vs+5G NRAdvantage
The 5G NR network is newer and faster
(3G+ HSPA+) 21 Mbpsvs+(5G NR) 5000 Mbps237 times
Faster for surfing the internet and download files
Not supportedvs+Fingerprint sensor (under display)Advantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
Not supportedvs+ANT+Advantage
Sensors help you use the device
1650 mAhvs+4500 mAh173%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n (2.4Ghz, 5Ghz)vs+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO is newer and faster
3.0 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0vs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
HTML, XHTML, Flash playervs+HTML, XHTML, HTML5Advantage
Better sites viewing on the internet

23 Common items in both devices
Super AMOLED Plus / Super AMOLED
16 million
LED flash
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
Capacitive
+16 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight
Physical featuresSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
ModelGalaxy S2 (GT-i9100 16GB)Galaxy A51 5G UW (SM-A516V)
Other model namesSamsung Galaxy S2 i9100, Galaxy S II (SGS2)Galaxy A51 SM-A516VZBAVZW (Verizon)
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungSamsung
Release dateApril, 2012August, 2020
Depth8.49 millimeters (0.33 inches)8.7 millimeters (0.34 inches)
Size (width x height)66.1 x 125.3 millimeters (2.6 x 4.93 in)73.6 x 158.9 millimeters (2.9 x 6.26 in)
Weight116 grams (4.06 ounces)187 grams (6.55 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontAluminum body, glass front, plastic back
Protection against water and othersNot supportedNot supported
System (OS)Samsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Operating systemAndroid 2.3.4 GingerbreadAndroid 10
Firmware updateAndroid 4.1.2 Jelly Beanfeature not registered
HardwareSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Chipset32bit - Samsung Exynos 4 Dual 4210 (45nm)64bit - Qualcomm Snapdragon 765G SDM765 (7nm)
CPU processor1.2Ghz Dual-Core ARM Cortex-A9Octa-Core, 3 processors:
2.4Ghz Single-Core Kryo 475 Prime
2.2Ghz Single-Core Kryo 475 Gold
1.8Ghz Hexa-Core Kryo 475 Silver
GPU graphical controllerARM Mali-400 MP4 266MhzQualcomm Adreno 620
RAM memory1GB LPDDR26GB LPDDR4X
Internal storage16GB (13GB available)128GB (105GB available)
UFS 2.1
External storageUntil 32GB microSD, microSDHC
(dedicated slot)
Until 1TB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Display typeSuper AMOLED PlusSuper AMOLED
Screen size4.3" inches6.5" inches
Screen-to-body ratio~63.5% (screen-to-body ratio)~87.2% (screen-to-body ratio)
Display resolution480x800 pixels1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)217 PPI405 PPI
Colors16 million16 million
Scratch-resistant glassGorilla GlassGorilla Glass 3
Display featuresfeature not registered60Hz
Mobile networksSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
Standard mini-SIM (2FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload21/5.76 Mbps5000/200 Mbps
Network technology2G, 3G2G, 3G, 4G, 5G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1900/2100
Primary 4G networkNot supportedLTE Cat12/13 (2, 4, 5, 13, 66)
VoLTE
Primary 5G networkNot supportedmmWave (260, 261)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A, 5G NR
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
MessagingSMS (Swype), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
CameraSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Back camera (main camera)8 megapixels(quad camera)
48 megapixels
12MP ultrawidef/2.213mm1.12µm
5MP telephotof/2.440mm
5MP depthf/2.21/5.0"1.12µm
Main camera resolution3264x2448 pixels8000x6000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/2.6 (aperture)f/2.0 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/3.2" inches1/2" inches
Pixel sizefeature not registered0.8µm pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRNot supportedHDR photo on both cameras
2ª cameraSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Front camera (secondary)2 megapixels32 megapixels
Front camera resolution1600x1200 pixels6528x4896 pixels
Video recording (secondary)VGA (640x480)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturefeature not registeredf/2.2 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/2.8" inches
Pixel sizefeature not registered0.8µm pixel
MultimediaSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
RadioFM (RDS)FM (RDS)
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, DivX, XviD, WMVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, eAAC+, AC3, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
USBMicroUSB 2.0USB 2.0 Type-C, USB OTG On-The-Go
TV outputMicro-B USB MHLNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth3.0 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n (2.4Ghz, 5Ghz)802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupportedNot supported
NFCSupportedSupported
GPSA-GPS, GeoTaggingA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, Flash playerHTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Hall effect
Face unlock
Fingerprint sensor (under display)
ANT+
Other features- Colors: Black, White, Pink
- Samsung TouchWiz UI 4.0
- WiFi direct, hotspot
- Java framework
- Colors: Prism Bricks Blue
- One UI 2
- Always On Display
- WiFi direct, hotspot
Power supplySamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
BatteryLi-Ion: Lithium-Ion (Removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity1650 mAh4500 mAh
Charger, watts Standard charging15W Fast battery charging
Talk time autonomy520 minutes | 8.7 hours | 0.4 dayfeature not registered
Standby36000 minutes | 600 hours | 25 daysfeature not registered
Radiation rateSamsung Galaxy S2 (GT-i9100 16GB)Samsung Galaxy A51 5G UW (SM-A516V)
SAR 1.6W/kg (USA, Mexico, etc.)0.16W/kg (head) | 0.96W/kg (body)0.59W/kg (head) | 1.32W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.34W/kg (head)feature not registered
X

We use cookies to provide and improve our services. By using our site, you consent to cookies. See more details: Privacy policy.