Lumia 640 Dual SIM
- 8 MP, f/2.2, 28mm (wide), 1/4.0", AF
- 1080p@30fps
- 8GB 1GB RAM
- Li-Ion 2500 mAh, removable
Announced
2015, March. Released 2015, April
Status
Discontinued
Technology
GSM / HSPA
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
HSDPA 850 / 900 / 1900 / 2100
Speed
HSPA 42.2/5.76 Mbps
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)
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
Other
ClearBlack display
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
Card slot
microSDXC (dedicated slot)
Internal
8GB 1GB RAM
Other
eMMC 4.5
Single
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Features
LED flash
Video
1080p@30fps
Single
1 MP
Video
720p
Colors
Glossy cyan, Orange, White, Matte black
Price
About 170 EUR
Loudspeaker
Yes
3.5mm jack
Yes
WLAN
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
4.0, A2DP
GPS
Yes, with A-GPS, GLONASS, BDS
NFC
No
Radio
FM radio
USB
microUSB 2.0
Sensors
Accelerometer, proximity, compass
Type
Li-Ion 2500 mAh, removable
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)
Display
Contrast ratio: 1034 (nominal), 2.563 (sunlight)
Loudspeaker
Voice 70dB / Noise 65dB / Ring 75dB
Audio quality
Noise -93.1dB / Crosstalk -93.2dB
Battery life
Endurance rating 76h
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