Main Microsoft Lumia 640 Dual SIM Specifications Summery :
Microsoft Lumia 640 Dual SIM , announced on 2015, March. , Qualcomm MSM8926 Snapdragon 400 (28 nm) chipset,Storage 8GB 1GB RAM, Li-Ion 2500 mAh battery
Microsoft Lumia 640 Dual SIM Full Specifications:
| 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 |
| OUR TESTS |
Audio quality |
Noise -93.1dB / Crosstalk -93.2dB |
| Loudspeaker |
Voice 70dB / Noise 65dB / Ring 75dB |
| Display |
Contrast ratio: 1034 (nominal), 2.563 (sunlight) |
| Battery (old) |
Endurance rating 76h |
| Launch |
Announced |
2015, March. Released 2015, April |
| Status |
Discontinued |
| 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 |
| 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 |
| Sound |
Loudspeaker |
Yes |
| 3.5mm jack |
Yes |
| 35mm jack |
Yes |
| Comms |
WLAN |
Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Bluetooth |
4.0, A2DP |
| Positioning |
GPS, GLONASS, BDS |
| NFC |
No |
| Radio |
FM radio |
| USB |
microUSB 2.0 |
| Features |
Sensors |
Accelerometer, proximity, compass |
| Battery |
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) |
| 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
|
| Battery life |
Endurance rating 76h
|
| Audio quality |
Noise -93.1dB / Crosstalk -93.2dB |
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