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Microsoft Lumia 640 LTE
Released 2015, April
145g, 8.8mm thickness
Microsoft Windows Phone 8.1
8GB storage, microSDXC
5.0"
720x1280 pixels
8MP
1080p
1GB RAM
Snapdragon 400
2500mAh
Li-Ion
SPECIFICATIONS
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Microsoft Lumia 640 LTE Full Specifications
network
collapse
expand
Technology
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
1, 2, 4, 5, 7, 12, 17 - T-Mobile
4G bands
1, 3, 7, 8, 20
Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
launch
Announced
2015, March
Status
Available. Released 2015, April
body
Dimensions
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Weight
145 g (5.11 oz)
SIM
Micro-SIM
display
Type
IPS LCD capacitive touchscreen, 16M colors
Size
5.0 inches, 68.9 cm
2
(~67.6% screen-to-body ratio)
Resolution
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection
Corning Gorilla Glass 3
ClearBlack display
platform
OS
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Chipset
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
Quad-core 1.2 GHz Cortex-A7
GPU
Adreno 305
memory
Card slot
microSDXC (dedicated slot)
Internal
8GB 1GB RAM
eMMC 4.5
main camera
Modules
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Features
LED flash
Video
1080p@30fps
selfie camera
Modules
1 MP
Video
720p
sound
Loudspeaker
Yes
3.5mm jack
Yes
comms
WLAN
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
4.0, A2DP
GPS
Yes, with A-GPS, GLONASS, BDS
NFC
Yes
Radio
FM radio
USB
microUSB 2.0
features
Sensors
Accelerometer, proximity, compass
battery
Removable Li-Ion 2500 mAh battery
Stand-by
Up to 864 h (2G) / Up to 864 h (3G)
Talk time
Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
misc
Colors
Glossy cyan, Orange, White, Matte black
tests
Display
Contrast ratio: 1034 (nominal), 2.563 (sunlight)
Camera
Photo
Loudspeaker
Voice 70dB / Noise 65dB / Ring 75dB
Audio quality
Noise -93.1dB / Crosstalk -93.2dB
Battery life
Endurance rating 76h
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