Microsoft Lumia 640 Dual SIM
Discontinued
145g, 8.8mm thickness
5.0" - 720 x 1280 pixels
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Qualcomm MSM8926 Snapdragon 400 (28 nm)
8GB 1GB RAM
Li-Ion 2500 mAh, removable
5.0" - 720 x 1280 pixels
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Qualcomm MSM8926 Snapdragon 400 (28 nm)
8GB 1GB RAM
Li-Ion 2500 mAh, removable
Launch
Announced :
2015, March. Released 2015, April
Status :
Discontinued
Network
Technology :
GSM / HSPA
Speed :
HSPA 42.2/5.76 Mbps
2G bands :
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands :
HSDPA 850 / 900 / 1900 / 2100
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 :
Dual SIM (Micro-SIM, dual stand-by)
Display
Type :
IPS LCD
Size :
5.0 inches, 68.9 cm2 (~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
Sound
Loudspeaker :
Yes
3.5mm Jack :
Yes
Comms
WLAN :
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth :
4.0, A2DP
NFC :
No
Radio :
FM radio
USB :
microUSB 2.0
Positioning :
GPS, GLONASS, BDS
Features
Sensors :
Accelerometer, proximity, compass
Battery
Stand-by :
Up to 840 h (2G) / Up to 840 h (3G)
Talk time :
Up to 27 h 30 min (2G) / Up to 20 h 30 min (3G)
Type :
Li-Ion 2500 mAh, removable
Misc
Colors :
Glossy cyan, Orange, White, Matte black
Price :
About 170 EUR
Main Camera
Features :
LED flash
Video :
1080p@30fps
Single :
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Selfie camera
Single :
1 MP
Video :
720p
Tests
Display :
Contrast ratio: 1034 (nominal), 2.563 (sunlight)
Loudspeaker :
Voice 70dB / Noise 65dB / Ring 75dB
Battery (old) :
Endurance rating 76h
Audio quality :
Noise -93.1dB / Crosstalk -93.2dB
