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T-Mobile Sidekick 4G (SGH-T839) vs Xiaomi Mi Note (16GB)

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

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Compare Xiaomi Mi Note X T-Mobile Sidekick 4G (SGH-T839) 02Points
3.5"
TFT

480x800

3.1
MP

0.3mp

512MB
RAM

Single-core

1500
mAh

(Removable)

vs
5.7"
IPS

1080x1920

13
MP

4.1mp

3GB
RAM

Quad-core

3000
mAh

(Non removable)

What's the better phone? Xiaomi Mi Note (16GB)

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!

Sidekick 4G (SGH-T839)} 2 Advantages T-Mobile Sidekick 4G (SGH-T839) vs Mi Note (16GB)} 25 Advantages Xiaomi Mi Note (16GB)
+Until 32GB microSD, microSDHCAdvantage
More external storage for files using memory cards
vsNot supported
+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
vsLi-Ion: lithium-ion (Non removable)
1GHz 32bit Single-corevs+2.5GHz 32bit Quad-core3 times
More powerful processor, you can open your applications faster
512MBvs+3GB LPDDR35 times
More RAM memory. Typically more responsive and better for multitasking.
1GB (350MB available)vs+16GB (12GB available)34 times
More internal storage for applications and files
162 grams (5.67 ounces)vs+161 grams (5.64 ounces)1%
Lighter
15 millimeters (0.59 inches)vs+7 millimeters (0.28 inches)114%
Thinner
TFT LCDvs+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
480x800 pixelsvs+1080x1920 pixels4 times
Higher resolution screen
267 PPIvs+386 PPI45%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
3.5"vs+5.7"63%
Larger screen
(back) 3.1MPvs+(back) 13MP3 times
Higher resolution main camera
Not supportedvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
(front) 0.3MPvs+(front) 4.1MP12 times
Higher resolution secondary camera to take pictures and selfies
VGA (720x480)vs+4K UHD (3840x2160)23 times
More image quality for recording videos with the primary camera
Android 2.2.1 Froyovs+Android 4.4.4 KitKatAdvantage
Android 4.4.4 KitKat is newer and safer
3G+ HSPA+vs+4G LTEAdvantage
The 4G LTE network is newer and faster
(3G+ HSPA+) 21 Mbpsvs+(4G LTE) 150 Mbps6 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
1500 mAhvs+3000 mAh100%
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 [wifi5]Advantage
WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
3.0 + A2DPvs+4.1 + A2DPAdvantage
Bluetooth 4.1 + A2DP is newer and faster
HTML, XHTML, Flash playervs+HTML, XHTML, HTML5Advantage
Better sites viewing on the internet
Not supportedvs+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys

14 Common items in both devices
16 million
Only digital zoom
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 Clear highlight

📱 Model features

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Change model 
ModelSidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Other model namesT-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4GXiaomi Mi Note 1 Dual Sim, Xiaomi Mi Note Dual Sim
Country or region availableUSA
USA
feature not registered
BrandT-MobileXiaomi
Release date4/20/20111/1/2015
Depth15 millimeters (0.59 inches)7 millimeters (0.28 inches)
Size (width x height)61 x 127 millimeters (2.4 x 5 in)77.6 x 155.1 millimeters (3.06 x 6.11 in)
Weight162 grams (5.67 ounces)161 grams (5.64 ounces)
Build, materialsfeature not registeredfeature not registered
Protection against water and othersNot supportedNot supported

📲 Display

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Display typeTFT LCDTFT IPS LCD
Screen size3.5" inches5.7" inches
Screen-to-body ratio~45% (screen-to-body ratio)~74.4% (screen-to-body ratio)
Display resolution480x800 pixels1080x1920 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)267 PPI386 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass 3
Refresh ratefeature not registeredfeature not registered
Display featuresfeature not registeredfeature not registered

🤖 Operating System

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
System versionAndroid 2.2.1 FroyoAndroid 4.4.4 KitKat
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Chipset32bit: Samsung Exynos 332bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm)
CPUSingle-core, 1 processor:
1x 1GHz ARM Cortex-A8 (Single-core)
Quad-core, 1 processor:
4x 2.5GHz Krait 400 (Quad-core)
GPU graphical controllerPowerVR SGX540Qualcomm Adreno 330 578Mhz
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
RAM memory512MB3GB LPDDR3
Internal storage1GB (350MB available)16GB (12GB available)
External storageUntil 32GB microSD, microSDHC
(dedicated slot)
Not supported

📶 Mobile networks

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
Standard mini-SIM (2FF)
2 slots (Dual-SIM)
micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload21/5.76 Mbps150/50 Mbps
Network technology2G, 3G2G, 3G, 4G
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 1700/2100UMTS 850/1900/2100, TD-SCDMA 1900/2000
Primary 4G networkNot supportedLTE Cat4 1800/2600 (Bands 3,7), TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/1900/2100
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE

📷 Camera

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Back camera (main camera)3.1 megapixels13 megapixels
Main camera resolution2048x1536 pixels4128x3096 pixels
Video recording (primary)VGA (720x480) 30 fps4K UHD (3840x2160) 30 fps
FlashNot supportedDual-LED flash
Focal aperturefeature not registeredf/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusAutofocusAutofocus
Touch focusfeature not registeredSupported
Image stabilizationfeature not registeredfeature not registered
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionfeature not registeredFace detection, Smile detection
BSI sensorfeature not registeredNot supported
HDRfeature not registeredHDR photo only main camera
Camera extrasfeature not registeredfeature not registered

📸 Front camera

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Front camera (secondary)0.3 megapixels4.1 megapixels
Front camera resolution640x480 pixels2688x1536 pixels
Video recording (secondary)Not supportedFull HD (1920x1080)
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

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
LoudspeakerSupportedSupported
Active noise cancellationfeature not registered2 microphones or more
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.264, H.263
Audio formatsMP3, WAV, eAAC+MP3, WAV, eAAC+, FLAC

🔌 Connectivity

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
USBMicroUSB 2.0MicroUSB 2.0
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth3.0 + A2DP4.1 + A2DP
WiFi802.11 b/g/n [wifi4] (2.4GHz)802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
DLNAfeature not registeredNot supported
GPSA-GPS, GeoTaggingA-GPS, GeoTagging, GLONASS
NFCNot supportedNot supported
Infrared portfeature not registeredNot supported

🧭 Sensors

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
SensorsAccelerometer
Ambient light sensor
Proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Battery typeLi-Ion: lithium-ion (Removable)Li-Ion: lithium-ion (Non removable)
Battery capacity1500 mAh3000 mAh
Charger, wattsWired chargingWired charging
Inductive / wireless chargingfeature not registeredfeature not registered
Talk time autonomy6.5 hours34 hours (1.4 days)
Standby456 hours (19 days)feature not registered

➕ Other features

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
Call controlVoice 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, Flash playerHTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardRetractable QWERTY keyboardNot 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, White
• USB OTG On-The-Go
• MI UI 6.0
• Corning Gorilla Glass 3 on back panel
• Quick Charge 2.0: 60% battery in 30min

☢️ Radiation rate

T-Mobile Sidekick 4G (SGH-T839)Xiaomi Mi Note (16GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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