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Nokia Lumia 830 RM-984 AT&TNokia Lumia 830 RM-984 AT&T
Microsoft Lumia 640 LTEMicrosoft Lumia 640 LTE
Construction
Height139.4mm (5.49")141.3mm (5.56")
Width70.7mm (2.78")72.2mm (2.84")
Depth8.5mm (0.33")8.8mm (0.35")
Dimension139.4x70.7x8.5mm (5.49x2.78x0.33")141.3x72.2x8.8mm (5.56x2.84x0.35")
3D SIZE

Side View3D SeparatedTop View3D InsideFront View

Weight150gr (5.29oz)145gr (5.11oz)
Form FactorCandy BarCandy Bar
Material
Colors
Usability
Display Resolution720x1280px720x1280px
Display Size63x111mm (2.48x4.37") ~294PPI63x111mm (2.48x4.37") ~294PPI
Display Diagonal5.0"5.0"
Display Type16M IPS16M IPS
Secondary Display Resolution
InputCapacitive TouchscreenCapacitive Touchscreen
Talk Time12 hours, 54 minutes - 2G
14 hours, 48 minutes - 3G
1 days, 2 hours, 30 minutes - 2G
17 hours, 30 minutes - 3G
Standby Time22 days36 days
OSWindows Mobile 8.1Windows Mobile 8.1
Java
VibrationAvailableAvailable
Ringtone
Hardware
ChipsetQualcomm 8926 Snapdragon 400Qualcomm 8926 Snapdragon 400
Processor4 Cores @ 1.2GHz ARM Cortex-A74 Cores @ 1.2GHz ARM Cortex-A7
GPUAdreno 305Adreno 305
Ram1GB1GB
Internal Memory16GB8GB
External MemorymicroSDmicroSD
Camera Resolution10 Megapixel8 Megapixel
Camera FlashLEDLED
Camera LensCarl Zeiss Camera Optics
Optical Zoom
Front Camera0.9 Megapixel1 Megapixel
Second Front Camera
Front Camera Flash
Other FunctionalitiesDigital Compass
Accelerometer
Gesture Control
Light Sensor
Proximity Sensor
Wireless Charging
Digital Compass
Accelerometer
Light Sensor
Proximity Sensor
Magnetometer
SpeakerStereoMono
Battery Capacity2200mAh2500mAh
Battery Type
Connectivity
WIMAX
WiFiWi-Fi 802.11 a/b/g/nWi-Fi 802.11 b/g/n
UPnP
NFCNFCNFC
USB2.0v2.0
Bluetoothv4.0v4.0
Positioning SystemIntegrated GPSIntegrated GPS
TV Receiver
TV Out
Audio Output3.5mm Jack3.5mm Jack
RadioFMFM
Ethernet
Infrared
Cellular Network
Network CompatibilityGSM 1800, 1900, 850, 900
UMTS 900, 850, 2100, 1900
HSPA 900, 850, 2100, 1900
LTE 850(5), 1900(2), 1700/2100(4), 700(17)
LTE 800(20), 1800+(3), 2600(7), 900(8), 2100(1), 700(17), 700(12)
GSM 1800, 1900, 850, 900
UMTS 900, 850, 2100
HSPA 900, 850, 2100
SIM CardsNanoMicro
PTT
HSCSD
GPRSClass 12Available
EDGEClass 12Available
AMPS
CDMA2000 1xEV-DO
Operators
World Compatibility
NO ACCESS
2G (GSM)
3G (UMTS)
3.5G (HSDPA)
4G (LTE)
worldwide compatibilityworldwide compatibility
VARIOUS
Images
ReviewsDisplay Verdicts
N/A out of 100
GSMArena
Nokia Lumia 830 is probably the last smartphone to wear the iconic Nokia logo, five letters with so much history behind. And while it might not be a model as iconic as the original 808 PureView or the Lumia 1020, the Nokia Lumia 830 is destined to go down... read more
N/A out of 100
Phone Arena
Nokia Lumia 830 brings the company's PureView and Rich Recording camera and audio technologies to a lower... read more
N/A out of 100
GSMArena
Low-end Lumias dominate the Windows Phone market but aren't prestigious. To fix this, Microsoft crafted the Lumia 640 Trojan horse - a capable mid-ranger hiding behind an undeservedly low model number. It comes with pick-and-choose LTE... read more
N/A out of 100
Phone Arena
In this review, we’re putting the Lumia 640 through some testing to see whether or not it’s something... read more
Price Range--
Published OnSeptember 2014March 2015

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