Microsoft Lumia 940 XL vs Nokia Lumia 830 vs Microsoft Lumia 640 XL LTE

BASIC INFO
Model No Lumia 940 XL Nokia Lumia 830 RM-984 -
Status Available Available. Released 2014, September Release 2015, March
Release Date 2015, April 2014, September 2015, March
Dimension - 139.4 x 70.7 x 8.5 mm (5.49 x 2.78 x 0.33 in) 157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in)
Weight 165 g 150 g (5.29 oz) 171 g
Colors Yellow, white, black, red Yellow, white, black, red Matte cyan, Orange, Black, Matte white, Glossy white
Body Metrial - - -
W & D Proof - - -
SIM Type Singal Sim Nano-SIM -
Technology GSM GSM / HSPA / LTE -
OS Microsoft Windows Phone 10 Microsoft Windows Phone 8.1 Microsoft Windows Phone 8.1
PROSESSING
Processor Quad-core 1.5 GHz Cortex-A53 & Quad-core 2 GHz Cortex-A57, Qualcomm MSM8994 Snapdragon 810 Quad-core 1.2 GHz Cortex-A7 Qualcomm Snapdragon 400, Quad core 1.2 GHz cortex a7 Adreno 305 GPU
Chipset Qualcomm MSM8994 Snapdragon 810 Qualcomm Snapdragon 400 -
GPU Adreno 430 Adreno 305 -
MEMORY
RAM 3 GB 1GB -
Storage 32 GB 16GB -
Card Slot - up to 128 GB (dedicated slot) 8GB Storage, 1GB RAM, microSD, up to 32 GB card slot
DISPLAY
Size 5.7 inches 5 inches 720 x 1280 pixels, 5.7 inches (~259 ppi pixel density)
Type Super Amoled capacitive touchscreen, 16M colors IPS LCD Capacitive touchscreen, 16M colors IPS LCD capacitive touchscreen, 16M colors
Resolation 1080 x 1920 pixels 720 x 1280 pixels -
PPI 401 ppi pixel density 294 ppi pixel density -
Multi touch Yes Yes -
Protection Corning Gorilla Glass v4 Corning Gorilla Glass 3, ClearBlack display -
CAMERA
Primary 20 MP, 5248 x 3936 pixels, autofocus, 10 MP, f/2.2, 26mm, Carl Zeiss optics, OIS, autofocus 13 MP, 4128 x 3096 pixels, autofocus, LED flash
Video 2160p@30fps, 1080p@30fps, optical stabilization 1080p@30fps, optical stabilization, stereo sound rec. Yes, 1080p@30fps
Flash LED Led flash -
Features Digital zoom,Face decetion,Touch face 1/3.4 Inches sensor size, PureView technology, geo-tagging, face detection, panorama -
Selfie Yes 5 MP Yes 0.9 MP Yes, 5MP
BATTERY
Battery Li-ion battery Li-Ion Li-Ion 3000 mAh battery
Capacity 3300 mah 2200 mAh -
Removable Non-Removable Non-removable -
StandBy - Up to 528 h -
Talk Time Upto 19 Hours, 3G Up to 12 h 54 min (2G) / Up to 14 h 48 min (3G) -
Music Play - Up to 78 h -
Browsing Yes - -
Video Playback - - -
F Charging - - -
W Charging - - -
NETWORK
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800)
LTE band 2(1900), 4(1700/2100), 5(850), 17(700) - AT&T
LTE 800 / 900 / 1800 / 2100 / 2600
Speed - HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps -
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot
BlueTooth Yes, v4.0 with A2DP v4.0, A2DP, EDR, LE, apt-X Yes, v4.0 with A2DP
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS, BDS A-GPS, GLONASS
NFC Yes Yes -
Audio jeck Yes Yes, 3.5mm -
OTHERS
Sensors Proximity sensor, Accelerometer, Compass, Gyroscope Accelerometer, gyro, proximity, compass -
Radio FM radio FM radio FM radio
SARUS - 0.87 W/kg (head), 0.83 W/kg (body) -
SAREU - 0.46 W/kg (head), 0.59 W/kg (body) -
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