T-Mobile Sidekick 4G (SGH-T839) vs Samsung Galaxy S Relay 4G (SGH-T699)

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

7/1/2013 7:50 PM, updated: 6/19/2025 5:19 PM

Compare Samsung Galaxy S Relay 4G X T-Mobile Sidekick 4G (SGH-T839) 01Point

Specifications Compare Models Pictures

3.5"
TFT

480x800

3.1
MP

0.3mp

512MB
RAM

Single-core

1500
mAh

(Removable)

18Points Samsung Galaxy S Relay 4G (SGH-T699) Compare T-Mobile Sidekick 4G X

Specifications Compare Models Pictures

4"
AMOLED

480x800

5
MP

1.3mp

1GB
RAM

Dual-core

1800
mAh

(Removable)

What's the better phone? Samsung Galaxy S Relay 4G (SGH-T699)

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!

1 Advantage T-Mobile Sidekick 4G (SGH-T839)	vs	18 Advantages Samsung Galaxy S Relay 4G (SGH-T699)
+267 PPI15% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	233 PPI
1GHz 32bit Single-core	vs	+1.5GHz 32bit Dual-core (45nm)122% More powerful processor, you can open your applications faster
512MB	vs	+1GB LPDDR2100% More RAM memory. Typically more responsive and better for multitasking.
1GB (350MB available)	vs	+8GB (5GB available)14 times More internal storage for applications and files
162 grams (5.67 ounces)	vs	+147 grams (5.15 ounces)10% Lighter
15 millimeters (0.59 inches)	vs	+13.5 millimeters (0.53 inches)11% Thinner
TFT LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
3.5"	vs	+4"14% Larger screen
(back) 3.1MP	vs	+(back) 5MP60% Higher resolution main camera
Not supported	vs	+LED flashAdvantage The LED flash helps in dark places or in low light
(front) 0.3MP	vs	+(front) 1.3MP3 times Higher resolution secondary camera to take pictures and selfies
VGA (720x480)	vs	+HD (1280x720)167% More image quality for recording videos with the primary camera
Android 2.2.1 Froyo	vs	+Android 4.0.4 Ice Cream Sandwich ICSAdvantage Android 4.0.4 Ice Cream Sandwich ICS is newer and safer
(3G+ HSPA+) 21 Mbps	vs	+(3G+ HSPA+) 42 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
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	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
HTML, XHTML, Flash player	vs	+HTML, XHTML, HTML5, Flash playerAdvantage Better sites viewing on the internet

20 Common items in both devices

Until 32GB microSD, microSDHC

16 million

480x800 pixels

Only digital zoom

Autofocus

3G+ HSPA+

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 S Relay 4G (SGH-T699)
Change model
Model	Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
Other model names	T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G	T-Mobile Galaxy S Blaze Q, Galaxy S Relay 4G T699 (no LTE)
Country or region available	USA	USA
Brand	T-Mobile	Samsung
Release date	4/20/2011	9/19/2012
Depth	15 millimeters (0.59 inches)	13.5 millimeters (0.53 inches)
Size (width x height)	61 x 127 millimeters (2.4 x 5 in)	66 x 126 millimeters (2.6 x 4.96 in)
Weight	162 grams (5.67 ounces)	147 grams (5.15 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 S Relay 4G (SGH-T699)
Display type	TFT LCD	Super AMOLED
Screen size	3.5" inches	4" inches
Screen-to-body ratio	~45% (screen-to-body ratio)	~54.8% (screen-to-body ratio)
Display resolution	480x800 pixels	480x800 pixels (5:3)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	233 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
System version	Android 2.2.1 Froyo	Android 4.0.4 Ice Cream Sandwich ICS
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	TouchWiz 4.0 UI
⚙️ Processor
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
Chipset	32bit: Samsung Exynos 3	32bit: Qualcomm Snapdragon S3 (MSM8260) (45nm)
CPU	Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core)	Dual-core, 1 processor: 2x 1.5GHz Scorpion (Dual-core)
GPU graphical controller	PowerVR SGX540	Qualcomm Adreno 220 (266MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
RAM memory	512MB	1GB LPDDR2
Internal storage	1GB (350MB available)	8GB (5GB available)
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
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	42/5.76 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 850/1700/1900/2100
Primary 4G network	Not supported	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
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 S Relay 4G (SGH-T699)
Back camera (main camera)	3.1 megapixels	5 megapixels
Main camera resolution	2048x1536 pixels	2592x1944 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	Supported
Image stabilization	feature not registered	EIS: Digital stabilization
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 S Relay 4G (SGH-T699)
Front camera (secondary)	0.3 megapixels	1.3 megapixels
Front camera resolution	640x480 pixels	1280x1024 pixels
Video recording (secondary)	Not supported	Not supported
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 S Relay 4G (SGH-T699)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	feature not registered	1 microphone
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
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 Direct, hotspot
DLNA	feature not registered	Supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging
NFC	Not supported	Supported
Infrared port	feature not registered	Not supported
🧭 Sensors
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
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	10 hours
Standby	456 hours (19 days)	312 hours (13 days)
➕ Other features
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
Call control	Voice recorder	Voice dialing, Voice recorder, Voice commands
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, HTML5, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Retractable QWERTY keyboard	Retractable QWERTY keyboard
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 Java framework
☢️ Radiation rate
	T-Mobile Sidekick 4G (SGH-T839)	Galaxy S Relay 4G (SGH-T699)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered

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T-Mobile Sidekick 4G (SGH-T839) vs Samsung Galaxy S Relay 4G (SGH-T699)

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

What's the better phone? Samsung Galaxy S Relay 4G (SGH-T699)

📱 Model features

📲 Display

🤖 Operating System

⚙️ Processor

💽 Memory and storage

📶 Mobile networks

📷 Camera

📸 Front camera

🔉 Sound and multimedia

🔌 Connectivity

🧭 Sensors

🔋 Battery

➕ Other features

☢️ Radiation rate