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Samsung Galaxy Express 3 (SM-J120A) vs Realme GT 5G (128GB)

Side by side comparison between Samsung Galaxy Express 3 vs Realme GT 5G phones, differences, pros, cons and full specifications. What's the better?

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Compare Realme GT 5G X Samsung Galaxy Express 3 (SM-J120A) 04Points
4.5"
AMOLED

480x800

5
MP

2mp

1GB
RAM

Quad-core

2050
mAh

(Removable)

vs
6.43"
AMOLED

1080x2400

64
MP

16mp

8GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Realme GT 5G (128GB)

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 Express 3 (SM-J120A)} 4 Advantages Samsung Galaxy Express 3 (SM-J120A) vs GT 5G (128GB)} 28 Advantages Realme GT 5G (128GB)
+Until 256GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+131 grams (4.59 ounces)42%
Lighter
vs186 grams (6.51 ounces)
+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: li-ion polymer (Non removable)
+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
vsNot supported
1.3GHz 32bit Quad-corevs+2.84GHz 64bit Octa-core (5nm)2 times
More powerful processor, you can open your applications faster
1GBvs+8GB LPDDR57 times
More RAM memory. Typically more responsive and better for multitasking.
8GB (4GB available)vs+128GB (106GB available)26 times
More internal storage for applications and files
8.9 millimeters (0.35 inches)vs+8.4 millimeters (0.33 inches)6%
Thinner
480x800 pixelsvs+1080x2400 pixels6 times
Higher resolution screen
207 PPIvs+409 PPI98%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.5"vs+6.43"43%
Larger screen
(back) 5MPvs+(triple camera) 64MP + 8MP + 2MP14 times
Higher resolution main camera
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
HDR photo only main cameravs+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
f/2.2 (aperture)vs+f/1.8 (aperture)22%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 2MPvs+(front) 16MP7 times
Higher resolution secondary camera to take pictures and selfies
HD (1280x720)vs+4K UHD (3840x2160)8 times
More image quality for recording videos with the primary camera
(front) VGA (640x480)vs+(front) Full HD (1920x1080)6 times
More image quality for recording videos with the secondary camera
Android 6.0.1 Marshmallowvs+Android 11Advantage
Android 11 is newer and safer
4G LTEvs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbpsvs+(5G SA/NSA) 2000 Mbps12 times
Faster for surfing the internet and download files
Not supportedvs+Ambient light sensorAdvantage
Sensors help you use the device
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (under display)Advantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
2050 mAhvs+4500 mAh120%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)Advantage
You can have more mobile carriers/operators on the same device.
802.11 b/g/n [wifi4]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
4.0 + A2DPvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0vs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.

14 Common items in both devices
Plastic body, glass front / Plastic body, glass front/back
Super AMOLED
16 million
Only digital zoom
Autofocus / PDAF: phase detection autofocus
EIS: Digital stabilization
Capacitive
+7 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 Clear highlight

📱 Model features

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Change model 
ModelGalaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Other model namesAT&T Samsung Galaxy J1 4G, Galaxy Express 3 GoPhoneRealme GT 5G RMX2202 (128GB+8GB RAM)
Country or region availableUSA
USA
(Global, International)
(Global, International)
BrandSamsungRealme
Release date4/1/20163/4/2021
Depth8.9 millimeters (0.35 inches)8.4 millimeters (0.33 inches)
Size (width x height)69.3 x 132.6 millimeters (2.73 x 5.22 in)73.3 x 158.5 millimeters (2.89 x 6.24 in)
Weight131 grams (4.59 ounces)186 grams (6.51 ounces)
Build, materialsPlastic body, glass frontPlastic body, glass front/back
Protection against water and othersNot supportedNot supported

📲 Display

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Display typeSuper AMOLEDSuper AMOLED
Screen size4.5" inches6.43" inches
Screen-to-body ratio~62.7% (screen-to-body ratio)~85.9% (screen-to-body ratio)
Display resolution480x800 pixels1080x2400 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)207 PPI409 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Refresh ratefeature not registered120Hz
Display featuresfeature not registeredNot supported

🤖 Operating System

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
System versionAndroid 6.0.1 MarshmallowAndroid 11
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Chipset32bit: Spreadtrum SC9830A (28nm)64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)
CPUQuad-core, 1 processor:
4x 1.3GHz ARM Cortex-A7 (Quad-core)
Octa-core, 3 processors:
1x 2.84GHz Kryo 680 (Single-core)
3x 2.42GHz Kryo 680 (Triple-core)
4x 1.8GHz Kryo 680 (Quad-core)
GPU graphical controllerARM Mali-400 MP2Qualcomm Adreno 660 (840MHz)
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
RAM memory1GB8GB LPDDR5
Internal storage8GB (4GB available)128GB (106GB available)
UFS 3.1
External storageUntil 256GB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
micro-SIM (3FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload150/50 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse 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 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 700/850/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,12)LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26)
TD-LTE (34, 38, 39, 40, 41)
VoLTE
Primary 5G networkNot supportedSA/NSA (1, 3, 28, 41, 77, 78, 79)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1700/1900/2100
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+

📷 Camera

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Back camera (main camera)5 megapixels(triple camera)
64 megapixels
8MP ultrawide f/2.316mm119°1/4"1.12µm
2MP macro f/2.4
Main camera resolution2592x1944 pixels10120x6328 pixels
Video recording (primary)HD (1280x720) 30 fps4K UHD (3840x2160) 60 fps
FlashLED flashDual-LED flash
Focal aperturef/2.2 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/1.73" 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 sensorNot supportedNot supported
HDRHDR photo only main cameraHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Front camera (secondary)2 megapixels16 megapixels
Front camera resolution1600x1200 pixels4608x3456 pixels
Video recording (secondary)VGA (640x480)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.5 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/3" inches
Pixel sizefeature not registered1µm pixel

🔉 Sound and multimedia

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
LoudspeakerSupportedSupported
Active noise cancellationNot supported2 microphones or more
RadioFM (RDS)Not supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
USBMicroUSB 2.0USB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedUSB Type-C (reversible)
Bluetooth4.0 + A2DP5.2 + A2DP/LE
WiFi802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
SensorsAccelerometer
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Battery typeLi-Ion: lithium-ion (Removable)LiPo: li-ion polymer (Non removable)
Battery capacity2050 mAh4500 mAh
Charger, wattsWired charging65W Wired fast charging
Inductive / wireless chargingfeature not registeredNot supported
Talk time autonomy12 hoursfeature not registered
Standby240 hours (10 days)feature not registered

➕ Other features

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
Call controlVoice dialing, Voice recorderVoice 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: White• Colors: Gold/Black, Blue, Silver
• Realme UI 2.0
• 24-bit/192kHz audio
• Screen protector included
• Protective case included

☢️ Radiation rate

Galaxy Express 3 (SM-J120A)Realme GT 5G (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.99W/kg (head), 1.25W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)1.03W/kg (head), 0.439W/kg (body)feature not registered
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