Microsoft Lumia 640 Dual SIM

Specifications
Microsoft Lumia 640 Dual SIM
MORE PICTURES
  • 5.0" 720x1280 pixels
  • 8MP 1080p
  • 1GB RAM Snapdragon 400
  • 2500mAh Li-Ion
Released 2015, April 145g, 8.8mm thickness Microsoft Windows Phone 8.1 8GB storage, microSD slot
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Network
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
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 Dual SIM (Micro-SIM, dual stand-by)
Display
Type IPS LCD capacitive touchscreen, 16M colors
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 microSD, up to 256 GB (dedicated slot)
Internal 8GB 1GB RAM
Main Camera
Single 8 MP, f/2.2, 28mm (wide), 1/4", AF
Features LED flash
Video 1080p@30fps
Selfie Camera
Single 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
Radio FM radio
USB microUSB 2.0
Features
Sensors Accelerometer, proximity, compass
Battery
  Removable Li-Ion 2500 mAh 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)
Misc
Colors Glossy cyan, Orange, White, Matte black
Price About 170 EUR
Tests
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

User opinions and reviews

  • myFone

June 2019, Lumia 640 is making wonder! Bought a used one with screen broken and ofc back cover broken at power button! Never repaired, just wanted to see how far it can push! Instagram works like any android fone, yes with little hak, you reall...

  • Lumia640User

I have been using this phone since they release it in 2015, so that's 4 years now. It survived a lot a drops and hits. It is still functional although slow now and lacks a lot of apps. But since the Windows phones are officially out of business, i gu...

  • Zak

Is not it irritating that the phone is continuously downloading updates?

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