T-Mobile Sidekick 4G (SGH-T839) vs Sonim XP8

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Side by side comparison between T-Mobile Sidekick 4G vs Sonim XP8 phones, differences, pros, cons and full specifications. What's the better?

12/12/2021 4:35 PM, updated: 12/12/2021 6:22 PM

Compare Sonim XP8 X T-Mobile Sidekick 4G (SGH-T839) 03Points

Specifications Compare Models Pictures

3.5"
TFT

480x800

3.1
MP

0.3mp

512MB
RAM

Single-core

1500
mAh

(Removable)

28Points Sonim XP8 Compare T-Mobile Sidekick 4G X

Specifications Compare Models Pictures

5"
IPS

1080x1920

12
MP

8mp

4GB
RAM

Octa-core

4900
mAh

(Removable)

What's the better phone? Sonim XP8

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!

3 Advantages T-Mobile Sidekick 4G (SGH-T839)	vs	28 Advantages Sonim XP8
+162 grams (5.67 ounces)107% Lighter	vs	335 grams (11.73 ounces)
+15 millimeters (0.59 inches)20% Thinner	vs	18 millimeters (0.71 inches)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	proprietary audio output
1GHz 32bit Single-core	vs	+2.2GHz 64bit Octa-core (14nm)4 times More powerful processor, you can open your applications faster
512MB	vs	+4GB LPDDR47 times More RAM memory. Typically more responsive and better for multitasking.
1GB (350MB available)	vs	+64GB (45GB available)131 times More internal storage for applications and files
Until 32GB microSD, microSDHC	vs	+Until 512GB microSD, microSDXC15 times More external storage for files using memory cards
TFT LCD	vs	+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid
480x800 pixels	vs	+1080x1920 pixels4 times Higher resolution screen
267 PPI	vs	+441 PPI65% Crisper display of text, images and videos because it has more pixels per inch (ppi)
3.5"	vs	+5"43% Larger screen
(back) 3.1MP	vs	+(back) 12MP3 times 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) 8MP25 times Higher resolution secondary camera to take pictures and selfies
VGA (720x480)	vs	+Full HD (1920x1080)5 times More image quality for recording videos with the primary camera
Android 2.2.1 Froyo	vs	+Android 10Advantage Android 10 is newer and safer
3G+ HSPA+	vs	+4G LTE-AAdvantage The 4G LTE-A network is newer and faster
(3G+ HSPA+) 21 Mbps	vs	+(4G LTE-A) 600 Mbps28 times Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
1500 mAh	vs	+4900 mAh2 times 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) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
3.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
HTML, XHTML, Flash player	vs	+HTML, XHTML, HTML5Advantage Better sites viewing on the internet
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys
Not supported	vs	+IP68/IP69K certified, MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

14 Common items in both devices

16 million

Only digital zoom

Autofocus / PDAF: phase detection autofocus

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+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

📱 Model features
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Change model
Model	Sidekick 4G (SGH-T839)	Sonim XP8
Other model names	T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G	Sonim XP8 (XP8800), AT&T/Verizon
Country or region available	USA	(Global, International), Canada, USA
Brand	T-Mobile	Sonim
Release date	4/20/2011	5/1/2018, Announced: 4/1/2018
Depth	15 millimeters (0.59 inches)	18 millimeters (0.71 inches)
Size (width x height)	61 x 127 millimeters (2.4 x 5 in)	79.5 x 152 millimeters (3.13 x 5.98 in)
Weight	162 grams (5.67 ounces)	335 grams (11.73 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	IP68/IP69K certified: water-resistant up to 1.5 meters for 30min, dust-resistant, plus high-pressure and steam-washable. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
📲 Display
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Display type	TFT LCD	TFT IPS LCD
Screen size	3.5" inches	5" inches
Screen-to-body ratio	~45% (screen-to-body ratio)	~57% (screen-to-body ratio)
Display resolution	480x800 pixels	1080x1920 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	267 PPI	441 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
System version	Android 2.2.1 Froyo	Android 7.0 Nougat
Firmware update	feature not registered	Android 10
User Interface	feature not registered	feature not registered
⚙️ Processor
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Chipset	32bit: Samsung Exynos 3	64bit: Qualcomm Snapdragon 630 (SDM630) (14nm)
CPU	Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core)	Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	PowerVR SGX540	Qualcomm Adreno 508 (650-700Mhz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
RAM memory	512MB	4GB LPDDR4
Internal storage	1GB (350MB available)	64GB (45GB available) eMMC 5.1
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) Standard mini-SIM (2FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	21/5.76 Mbps	600/150 Mbps
Network technology	2G, 3G	2G, 3G, 4G
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	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	UMTS 1700/2100	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100
Primary 4G network	Not supported	LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 66) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 66) TD-LTE (38, 40, 41)
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Back camera (main camera)	3.1 megapixels	12 megapixels
Main camera resolution	2048x1536 pixels	4000x3000 pixels
Video recording (primary)	VGA (720x480) 30 fps	Full HD (1920x1080) 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	PDAF: phase detection 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, Smile detection
BSI sensor	feature not registered	Not supported
HDR	feature not registered	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Front camera (secondary)	0.3 megapixels	8 megapixels
Front camera resolution	640x480 pixels	3264x2448 pixels
Video recording (secondary)	Not supported	Full HD (1920x1080)
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)	Sonim XP8
Loudspeaker	Supported	Mono sound with dual speakers
Active noise cancellation	feature not registered	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
USB	MicroUSB 2.0	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	proprietary audio output
TV output	Not supported	Not supported
Bluetooth	3.0 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	feature not registered	Not supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Supported
Infrared port	feature not registered	Not supported
🧭 Sensors
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Battery type	Li-Ion: lithium-ion (Removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	1500 mAh	4900 mAh
Charger, watts	Wired charging	18W Wired fast charging Quick Charge 4
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	6.5 hours	30 hours (1.3 days)
Standby	456 hours (19 days)	720 hours (30 days)
➕ Other features
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
Call control	Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), 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
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
☢️ Radiation rate
	T-Mobile Sidekick 4G (SGH-T839)	Sonim XP8
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