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Samsung Galaxy Express 2 (SM-G3815) vs T-Mobile Sidekick 4G (SGH-T839)

Side by side comparison between Samsung Galaxy Express 2 vs T-Mobile Sidekick 4G phones, differences, pros, cons and full specifications. What's the better?

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Compare T-Mobile Sidekick 4G X Samsung Galaxy Express 2 (SM-G3815) 22Points
4.5"
TFT

540x960

5
MP

0.3mp

1.5GB
RAM

Dual-core

2100
mAh

(Removable)

vs
01Point T-Mobile Sidekick 4G (SGH-T839) Compare Samsung Galaxy Express 2 X
3.5"
TFT

480x800

3.1
MP

0.3mp

512MB
RAM

Single-core

1500
mAh

(Removable)

What's the better phone? Samsung Galaxy Express 2 (SM-G3815)

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 2 (SM-G3815)} 22 Advantages Samsung Galaxy Express 2 (SM-G3815) vs Sidekick 4G (SGH-T839)} 1 Advantage T-Mobile Sidekick 4G (SGH-T839)
+1.7GHz 32bit Dual-core152%
More powerful processor, you can open your applications faster
vs1GHz 32bit Single-core
+1.5GB LPDDR22 times
More RAM memory. Typically more responsive and better for multitasking.
vs512MB
+8GB22 times
More internal storage for applications and files
vs1GB (350MB available)
+Until 64GB microSD, microSDXC100%
More external storage for files using memory cards
vsUntil 32GB microSD, microSDHC
+134 grams (4.69 ounces)21%
Lighter
vs162 grams (5.67 ounces)
+9.8 millimeters (0.39 inches)53%
Thinner
vs15 millimeters (0.59 inches)
+540x960 pixels35%
Higher resolution screen
vs480x800 pixels
+4.5"29%
Larger screen
vs3.5"
+(back) 5MP60%
Higher resolution main camera
vs(back) 3.1MP
+LED flashAdvantage
The LED flash helps in dark places or in low light
vsNot supported
+HD (1280x720)167%
More image quality for recording videos with the primary camera
vsVGA (720x480)
+Android 4.2.2 Jelly BeanAdvantage
Android 4.2.2 Jelly Bean is newer and safer
vsAndroid 2.2.1 Froyo
+4G LTEAdvantage
The 4G LTE network is newer and faster
vs3G+ HSPA+
+(4G LTE) 100 Mbps4 times
Faster for surfing the internet and download files
vs(3G+ HSPA+) 21 Mbps
+CompassAdvantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+2100 mAh40%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs1500 mAh
+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
vsNot supported
+Micro-B USB MHLAdvantage
The TV-output lets you use your device on TV by cable
vsNot supported
+4.0 + A2DPAdvantage
Bluetooth 4.0 + A2DP is newer and faster
vs3.0 + A2DP
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+HTML, XHTML, HTML5Advantage
Better sites viewing on the internet
vsHTML, XHTML, Flash player
245 PPIvs+267 PPI9%
Crisper display of text, images and videos because it has more pixels per inch (ppi)

18 Common items in both devices
TFT LCD
16 million
Only digital zoom
Autofocus
(front) 0.3MP
Capacitive
Multitouch
+11 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 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Change model  
ModelGalaxy Express 2 (SM-G3815)Sidekick 4G (SGH-T839)
Other model namesSamsung Galaxy Express II G3815T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungT-Mobile
Release date10/1/20134/20/2011
Depth9.8 millimeters (0.39 inches)15 millimeters (0.59 inches)
Size (width x height)65.7 x 132.4 millimeters (2.59 x 5.21 in)61 x 127 millimeters (2.4 x 5 in)
Weight134 grams (4.69 ounces)162 grams (5.67 ounces)
Build, materialsfeature not registeredfeature not registered
Protection against water and othersNot supportedNot supported

📲 Display

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Display typeTFT LCDTFT LCD
Screen size4.5" inches3.5" inches
Screen-to-body ratio~64.2% (screen-to-body ratio)~45% (screen-to-body ratio)
Display resolution540x960 pixels480x800 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)245 PPI267 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Refresh ratefeature not registeredfeature not registered
Display featuresfeature not registeredfeature not registered

🤖 Operating System

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
System versionAndroid 4.2.2 Jelly BeanAndroid 2.2.1 Froyo
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Chipset32bit: Qualcomm Snapdragon 400 MSM8930AB32bit: Samsung Exynos 3
CPUDual-core, 1 processor:
2x 1.7GHz Krait 300 (Dual-core)
Single-core, 1 processor:
1x 1GHz ARM Cortex-A8 (Single-core)
GPU graphical controllerQualcomm Adreno 305PowerVR SGX540
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
RAM memory1.5GB LPDDR2512MB
Internal storage8GB1GB (350MB available)
External storageUntil 64GB microSD, microSDXC
(dedicated slot)
Until 32GB microSD, microSDHC
(dedicated slot)

📶 Mobile networks

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
micro-SIM (3FF)
1 slot (Single-SIM)
Standard mini-SIM (2FF)
Maximum Download / Upload100/50 Mbps21/5.76 Mbps
Network technology2G, 3G, 4G2G, 3G
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 850/900/2100UMTS 1700/2100
Primary 4G networkLTE 800/900/1800/2600Not supported
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported

📷 Camera

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Back camera (main camera)5 megapixels3.1 megapixels
Main camera resolution2592x1944 pixels2048x1536 pixels
Video recording (primary)HD (1280x720) 30 fpsVGA (720x480) 30 fps
FlashLED flashNot supported
Focal aperturef/2.6 (aperture)feature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusAutofocusAutofocus
Touch focusSupportedfeature not registered
Image stabilizationfeature not registeredfeature not registered
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionfeature not registered
BSI sensorNot supportedfeature not registered
HDRNot supportedfeature not registered
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Front camera (secondary)0.3 megapixels0.3 megapixels
Front camera resolution640x480 pixels640x480 pixels
Video recording (secondary)VGA (640x480)Not supported
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
LoudspeakerSupportedSupported
Active noise cancellationNot supportedfeature not registered
RadioFM (RDS)Not supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, WMVMP4, H.264, H.263
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, eAAC+

🔌 Connectivity

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
USBMicroUSB 2.0, USB OTG On-The-GoMicroUSB 2.0
Audio output3.5mm jack3.5mm jack
TV outputMicro-B USB MHLNot supported
Bluetooth4.0 + A2DP3.0 + A2DP
WiFi802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
802.11 b/g/n [wifi4] (2.4GHz)
DLNASupportedfeature not registered
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging
NFCSupportedNot supported
Infrared portfeature not registeredfeature not registered

🧭 Sensors

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
SensorsAccelerometer
Ambient light sensor
Compass
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Battery typeLi-Ion: lithium-ion (Removable)Li-Ion: lithium-ion (Removable)
Battery capacity2100 mAh1500 mAh
Charger, wattsWired chargingWired charging
Inductive / wireless chargingfeature not registeredfeature not registered
Talk time autonomy11 hours6.5 hours
Standby480 hours (20 days)456 hours (19 days)

➕ Other features

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
Call controlVoice dialing, Voice recorder, Voice commandsVoice recorder
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, Flash player
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedRetractable QWERTY keyboard
Miscellaneous• Colors: Blue, White
• Samsung TouchWiz UI
• Java framework
• Colors: Matte black, Pearl magenta
• 2GB microSD included
• Samsung TouchWiz UI
• Optical trackpad
• HAC M3/T3
• T-Mobile TV
• DLNA
• WiFi hotspot
• Java framework

☢️ Radiation rate

Galaxy Express 2 (SM-G3815)T-Mobile Sidekick 4G (SGH-T839)
SAR 1.6W/kg (USA, Mexico, etc.)0.38W/kg (head), 0.7W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)0.38W/kg (head), 0.36W/kg (body)feature not registered
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