4.30 average based on 2471 reviews.
Microsoft Lumia 640 Dual SIM Mobile Phones Full Specifications
Network
Technology | GSM / HSPA |
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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. Released 2015, April |
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Status | Discontinued |
Body
Dimensions | 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
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Weight | 145 g (5.11 oz) |
SIM | Dual SIM (Micro-SIM, dual stand-by) |
Display
Type | IPS LCD |
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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 |
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Chipset | Qualcomm MSM8926 Snapdragon 400 (28 nm) |
CPU | Quad-core 1.2 GHz Cortex-A7 |
GPU | Adreno 305 |
Memory
Card slot | microSDXC (dedicated slot) |
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Internal | 8GB 1GB RAM |
eMMC 4.5 |
Main Camera
Single | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF |
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Features | LED flash |
Video | 1080p@30fps |
Selfie camera
Single | 1 MP |
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Video | 720p |
Sound
Loudspeaker | Yes |
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3.5mm jack | Yes |
Comms
WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
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Bluetooth | 4.0, A2DP |
GPS | Yes, with A-GPS, GLONASS, BDS |
NFC | No |
Radio | FM radio |
USB | microUSB 2.0 |
Features
Sensors | Accelerometer, proximity, compass |
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Battery
Type | Li-Ion 2500 mAh, removable |
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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 |
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Price | About 170 EUR |
Tests
Display | Contrast ratio: 1034 (nominal), 2.563 (sunlight) |
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Loudspeaker | Voice 70dB / Noise 65dB / Ring 75dB |
Audio quality | Noise -93.1dB / Crosstalk -93.2dB |
Battery life | Endurance rating 76h |