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Samsung Galaxy S21 vs Google Pixel 4a (G025J)

Side by side comparison between Samsung Galaxy S21 vs Google Pixel 4a phones, differences, pros, cons and full specifications. What's the better?

,
Samsung Galaxy S21
6.2"
AMOLED

1080x2400

12.2
MP

10mp

8GB
RAM

64bit Octa

4000
mAh

(Non removable)

vs
Google Pixel 4a (G025J)
5.81"
OLED

1080x2340

12.2
MP

8mp

6GB
RAM

64bit Octa

3140
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!

Galaxy S2128 Advantages Samsung Galaxy S21vsPixel 4a (G025J)5 Advantages Google Pixel 4a (G025J)
+2.9GHz 64bit Octa-Core19%
More powerful processor, you can open your applications faster
vs2.2GHz 64bit Octa-Core
+8GB LPDDR533%
More RAM memory. Typically more responsive and better for multitasking.
vs6GB LPDDR4X
+UFS 3.0Advantage
Fastest write and read storage.
vsUFS 2.1
+7.9 millimeters (0.31 inches)4%
Thinner
vs8.2 millimeters (0.32 inches)
+Aluminum body, glass front, plastic backAdvantage
More resistant material
vsPlastic body, glass front
+Dynamic AMOLEDAdvantage
Dynamic AMOLED display is brighter and more vivid
vsOLED
+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
vsHDR8
+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
vs60Hz
+1080x2400 pixels3%
Higher resolution screen
vs1080x2340 pixels
+6.2"7%
Larger screen
vs5.81"
+(triple camera) 12.2MP + 64MP + 12MP6 times
Higher resolution main camera
vs(back) 12.2MP
+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
vsOnly digital zoom
+1/1.76" inches45%
The larger sensor camera lets you take photos with better depth.
vs1/2.55" inches
+(front) 10MP26%
Higher resolution secondary camera to take pictures and selfies
vs(front) 8MP
+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
vs4K UHD (3840x2160)
+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
vs(front) Full HD (1920x1080)
+5G NRAdvantage
The 5G NR network is newer and faster
vs4G+ LTE-A
+(5G NR) 5000 Mbps7 times
Faster for surfing the internet and download files
vs(4G+ LTE-A) 600 Mbps
+ANT+Advantage
Sensors help you use the device
vsNot supported
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+4000 mAh27%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs3140 mAh
+25W39%
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.
vs18W
+Qi wireless charging (Qi/PMA)Advantage
Wireless charging is another way to charge the battery.
vsNot supported
+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage
It's more advantageous to have more than one phone operator in the same device
vs1 slot (Single-SIM) + e-SIM (Eletronic)
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO is newer and faster
vs802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
vsUSB 3.1 Type-C reversible connector
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
169 grams (5.92 ounces)vs+143 grams (5.01 ounces)18%
Lighter
424 PPIvs+444 PPI5%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
f/1.8 (aperture)vs+f/1.7 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Android 11vs+Android 12Advantage
Android 12 is newer and safer
Type-C reversible connectorvs+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores

27 Common items in both devices
128GB (104GB available) / 128GB (109GB available)
16 million
LED flash
PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus
OIS: Optical stabilization
BSI sensor
HDR photo/video on both cameras
+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 differencesClear highlight

📱 Model features

Samsung Galaxy S21Google Pixel 4a (G025J)
ModelGalaxy S21Pixel 4a (G025J)
Other model namesGalaxy S21 5G SM-G991B/DSGoogle Pixel 4a G025J, HTC Sunfish
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungGoogle
Release date1/29/2021, Announced: 1/14/20218/20/2020, Announced: 8/3/2020
Depth7.9 millimeters (0.31 inches)8.2 millimeters (0.32 inches)
Size (width x height)71.2 x 151.7 millimeters (2.8 x 5.97 in)69.4 x 144 millimeters (2.73 x 5.67 in)
Weight169 grams (5.92 ounces)143 grams (5.01 ounces)
Build, materialsAluminum body, glass front, plastic backPlastic body, glass front
Protection against water and othersIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistantNot supported

🤖 Operating System

Samsung Galaxy S21Google Pixel 4a (G025J)
System versionAndroid 11Android 10
Firmware updatefeature not registeredAndroid 12
User InterfaceOne UI 3.1feature not registered

⚙️ Processor

Samsung Galaxy S21Google Pixel 4a (G025J)
Chipset64bit - Samsung Exynos 2100 (5nm)64bit - Qualcomm Snapdragon 730G (SM7150-AB) (8nm)
CPUOcta-Core, 3 processors:
2.9GHz Single-Core ARM Cortex-X1
2.8GHz Triple-Core ARM Cortex-A78
2.2GHz Quad-Core ARM Cortex-A55
Octa-Core, 2 processors:
2.2GHz Dual-Core Kryo 470 Gold
1.8GHz Hexa-Core Kryo 470 Silver
GPU graphical controllerARM Mali-G78 MP14 (854MHz)Qualcomm Adreno 618 (700MHz)
Performance (benchmark)feature not registeredAnTuTu: 268714 (v8)
Geekbench: 6426 (v4.4), 1626 (v5.1)
GFXBench: 17fps (ES 3.1 onscreen)

💽 Memory and storage

Samsung Galaxy S21Google Pixel 4a (G025J)
RAM memory8GB LPDDR56GB LPDDR4X
Internal storage128GB (104GB available)
UFS 3.0
128GB (109GB available)
UFS 2.1
External storageNot supportedNot supported

📲 Display

Samsung Galaxy S21Google Pixel 4a (G025J)
Display typeDynamic AMOLEDOLED
Screen size6.2" inches5.81" inches
Screen-to-body ratio~85.9% (screen-to-body ratio)~82.9% (screen-to-body ratio)
Display resolution1080x2400 pixels (20:9)1080x2340 pixels (19.5:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)424 PPI444 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass VictusGorilla Glass 3
Display features120Hz, 1300nits[peak]
HDR10+
Always-On Display
60Hz
HDR8

📶 Mobile networks

Samsung Galaxy S21Google Pixel 4a (G025J)
Dual-SIMDual-SIM Standby - Call active on one sim cardNot supported
SIM card2 slots (Dual-SIM)
nano-SIM (4FF) + e-SIM
1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
Maximum download/upload5000/1920 Mbps600/75 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800/1900, GSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat24 ()
TD-LTE ()
VoLTE
LTE Cat12/5 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 66, 71)
TD-LTE (38, 39, 40, 41)
VoLTE
Primary 5G networkSA/NSA/Sub6 ()Not supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA, 5G NRGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900Not supported
Secondary 3G networkUMTS 850/900/1700/1900/2100Not supported
Secondary 4G networkLTE Cat24 ()
TD-LTE ()
VoLTE
Not supported
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-ANot supported

📷 Camera

Samsung Galaxy S21Google Pixel 4a (G025J)
Back camera (main camera)(triple camera)
12.2 megapixels
64MP telephotof/2.029mm1/1.72"0.8µmPDAFOIS1.1x-optical-zoom3x-hybrid-zoom
12MP ultrawidef/2.213mm120°1/2.55"1.4µmSuper-Steady-video
12.2 megapixels
Main camera resolution4032x3024 pixels4032x3024 pixels
Video recording (primary)8K UHD (7680x4320) 24 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.7 (aperture)
Focal length26mm lens27mm lens
Sensor size1/1.76" inches1/2.55" inches
Pixel size1.8µm pixel1.4µm pixel
AutofocusPDAF: phase detection autofocus on both camerasPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS: Optical stabilization
ZoomDigital and optical zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo/video on both camerasHDR photo/video on both cameras
Camera extras4K@60fps
1080p@240fps
720p@960fps
feature not registered

📸 Front camera

Samsung Galaxy S21Google Pixel 4a (G025J)
Front camera (secondary)10 megapixels8 megapixels
Front camera resolution3872x2592 pixels3264x2448 pixels
Video recording (secondary)4K UHD (3840x2160)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.0 (aperture)
Focal length26mm lens24mm lens
Sensor size1/3.24" inchesfeature not registered
Pixel size1.22µm pixel1.12µm pixel

🔉 Sound and multimedia

Samsung Galaxy S21Google Pixel 4a (G025J)
LoudspeakerStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Supported
Active noise cancellation2 microphones or more2 microphones or more
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Samsung Galaxy S21Google Pixel 4a (G025J)
USBUSB 3.2 Type-C, USB OTG On-The-GoUSB 3.1 Type-C reversible connector
Audio outputType-C reversible connector3.5mm jack
TV outputUSB Type-C (reversible)Not supported
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
DLNASupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, QZSS
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Samsung Galaxy S21Google Pixel 4a (G025J)
SensorsAccelerometer
Ambient Light sensor
ANT+
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient Light sensor
Barometer
Compass
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Samsung Galaxy S21Google Pixel 4a (G025J)
Battery typeLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity4000 mAh3140 mAh
Charger, watts25W Fast battery charging
15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging between devices
USB Power Delivery 3.0
18W Fast battery charging
USB Power Delivery 2.0
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Samsung Galaxy S21Google Pixel 4a (G025J)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous- Colors: Phantom Gray, White, Violet, Pink
- Samsung Pay (Visa, MasterCard)
- Samsung DeX
- Colors: Just Black, Barely Blue
- Always-on display
- Google Pay

☢️ Radiation rate

Samsung Galaxy S21Google Pixel 4a (G025J)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)0.456W/kg (head), 1.509W/kg (body)feature not registered
X

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