T-Mobile Sidekick 4G (SGH-T839) vs Samsung Galaxy Beam (GT-i8520)

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Side by side comparison between T-Mobile Sidekick 4G vs Samsung Galaxy Beam (GT-i8520) phones, differences, pros, cons and full specifications. What's the better?

7/1/2013 7:50 PM, updated: 6/19/2025 8:14 AM

Compare Samsung Galaxy Beam (GT-i8520) X T-Mobile Sidekick 4G (SGH-T839) 07Points

Specifications Compare Models Pictures

3.5"
TFT

480x800

3.1
MP

0.3mp

512MB
RAM

Single-core

1500
mAh

(Removable)

11Points Samsung Galaxy Beam (GT-i8520) Compare T-Mobile Sidekick 4G X

Specifications Compare Models Pictures

3.7"
AMOLED

480x800

8
MP

0.3mp

384MB
RAM

Single-core

1800
mAh

(Removable)

What's the better phone? Samsung Galaxy Beam (GT-i8520)

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 T-Mobile Sidekick 4G (SGH-T839)	vs	11 Advantages Samsung Galaxy Beam (GT-i8520)
+1GHz 32bit Single-core18% More powerful processor, you can open your applications faster	vs	720MHz 32bit Single-core (65nm)
+512MB33% More RAM memory. Typically more responsive and better for multitasking.	vs	384MB LPDDR
+267 PPI6% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	252 PPI
+Android 2.2.1 FroyoAdvantage Android 2.2.1 Froyo is newer and safer	vs	Android 2.1 Eclair
+3G+ HSPA+Advantage The 3G+ HSPA+ network is newer and faster	vs	3G HSUPA
+(3G+ HSPA+) 21 Mbps192% Faster for surfing the internet and download files	vs	(3G HSUPA) 7.2 Mbps
+Ambient light sensorAdvantage Sensors help you use the device	vs	Not supported
1GB (350MB available)	vs	+16GB (13GB available)37 times More internal storage for applications and files
162 grams (5.67 ounces)	vs	+156 grams (5.46 ounces)4% Lighter
15 millimeters (0.59 inches)	vs	+14.9 millimeters (0.59 inches)1% Thinner
TFT LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
3.5"	vs	+3.7"6% Larger screen
(back) 3.1MP	vs	+(back) 8MP154% Higher resolution main camera
Not supported	vs	+LED flashAdvantage The LED flash helps in dark places or in low light
VGA (720x480)	vs	+HD (1280x720)167% More image quality for recording videos with the primary camera
1500 mAh	vs	+1800 mAh20% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general
Not supported	vs	+Gorilla GlassAdvantage Protection against scratches on the screen lets you carry your phone with your keys

20 Common items in both devices

Until 32GB microSD, microSDHC

16 million

480x800 pixels

Only digital zoom

Autofocus

(front) 0.3MP

Capacitive

+13 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
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Change model
Model	Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Other model names	T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G	Samsung i8520 Galaxy Beam 1, Samsung Galaxy Beam i8520 M16
Country or region available	USA	(Global, International), Singapore
Brand	T-Mobile	Samsung
Release date	4/20/2011	7/8/2010
Depth	15 millimeters (0.59 inches)	14.9 millimeters (0.59 inches)
Size (width x height)	61 x 127 millimeters (2.4 x 5 in)	59.8 x 123 millimeters (2.35 x 4.84 in)
Weight	162 grams (5.67 ounces)	156 grams (5.46 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Display type	TFT LCD	Super AMOLED
Screen size	3.5" inches	3.7" inches
Screen-to-body ratio	~45% (screen-to-body ratio)	~53% (screen-to-body ratio)
Display resolution	480x800 pixels	480x800 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	252 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
System version	Android 2.2.1 Froyo	Android 2.1 Eclair
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	TouchWiz UI
⚙️ Processor
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Chipset	32bit: Samsung Exynos 3	32bit: Texas Instruments OMAP 3440 (65nm)
CPU	Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core)	Single-core, 1 processor: 1x 720MHz ARM Cortex-A8 (Single-core)
GPU graphical controller	PowerVR SGX540	PowerVR SGX530 MP1
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
RAM memory	512MB	384MB LPDDR
Internal storage	1GB (350MB available)	16GB (13GB available) eMMC
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) Standard mini-SIM (2FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	21/5.76 Mbps	7.2/5.76 Mbps
Network technology	2G, 3G	2G, 3G
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 1700/2100	UMTS 900/1900/2100
Primary 4G network	Not supported	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA
Secondary 2G network	Not supported	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	Not supported
📷 Camera
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Back camera (main camera)	3.1 megapixels	8 megapixels
Main camera resolution	2048x1536 pixels	3264x2448 pixels
Video recording (primary)	VGA (720x480) 30 fps	HD (1280x720) 30 fps
Flash	Not supported	LED flash
Focal aperture	feature not registered	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	Autofocus	Autofocus
Touch focus	feature not registered	Not supported
Image stabilization	feature not registered	Not supported
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	feature not registered	Face detection
BSI sensor	feature not registered	Not supported
HDR	feature not registered	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Front camera (secondary)	0.3 megapixels	0.3 megapixels
Front camera resolution	640x480 pixels	640x480 pixels
Video recording (secondary)	Not supported	VGA (640x480)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Loudspeaker	Supported	Stereo sound
Active noise cancellation	feature not registered	1 microphone
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.264, H.263, DivX, XviD, WMV
Audio formats	MP3, WAV, eAAC+	MP3, WAV, WMA, eAAC+
🔌 Connectivity
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
USB	MicroUSB 2.0	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	3.0 + A2DP	3.0 + A2DP
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot
DLNA	feature not registered	Supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging
NFC	Not supported	Not supported
Infrared port	feature not registered	Not supported
🧭 Sensors
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	1500 mAh	1800 mAh
Charger, watts	Wired charging	5W Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	6.5 hours	7.4 hours
Standby	456 hours (19 days)	530 hours (22.1 days)
➕ Other features
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
Call control	Voice recorder	Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (Swype), 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, Flash player	HTML, XHTML, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Retractable QWERTY keyboard	Not supported
Miscellaneous	• Colors: Matte black, Pearl magenta • 2GB microSD included • Samsung TouchWiz UI • Optical trackpad • HAC M3/T3 • T-Mobile TV • DLNA • WiFi hotspot Java framework	• Colors: Black • Built-in WVGA DLP Pico projector DNSe 2.0 • Samsung Kies Java framework
☢️ Radiation rate
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy Beam (GT-i8520)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.62W/kg (head)