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Brand |
microsoft | microsoft | |
Model |
microsoft lumia 640 dual sim | microsoft lumia 550 | |
Announced |
2015 March. Released 2015 April | 2015 October. Released 2015 December | |
Status |
discontinued | discontinued | |
Device Body |
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Dimensions |
141.3 x 72.2 x 8.8 mm ( 5.56 x 2.84 x 0.35 in ) | 136.1 x 67.8 x 9.9 mm ( 5.36 x 2.67 x 0.39 in ) | |
Weight in gram |
145 | ||
SIM card |
dual SIM ( Micro-SIM | dual stand-by ) | Nano-SIM | |
Water Resistance |
No | No | |
Display type |
IPS LCD | IPS LCD | | |
Display resolution |
720 x 1280 pixels | 16 : 9 ratio ( ~294 pixel per inch density ) | 720 x 1280 pixels | 16 : 9 ratio ( ~315 pixel per inch density ) | |
Display size |
5.0 inches | 68.9 cm2 ( ~67.6% screen to body ratio ) | 4.7 inches | 59.7 cm2 ( ~64.7% screen to body ratio ) | |
Display Protection |
corning gorilla glass 3 | ||
Operating System |
microsoft windows phone 8.1 | upgradable to microsoft windows 10 | microsoft windows 10 | |
CPU |
Quad-core 1.2 GHz cortex-a7 | Quad-core 1.1 GHz cortex-a7 | |
Chipset |
Qualcomm msm8926 snapdragon 400 ( 28 nm ) | Qualcomm msm8909 snapdragon 210 ( 28 nm ) | |
GPU |
adreno 305 | adreno 304 | |
Memory card |
microsdxc ( dedicated slot ) | microsdxc ( dedicated slot ) | |
Memory v1 |
8gb 1gb RAM | 8gb 1gb RAM | |
Memory v2 |
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Primary camera |
8 megapixel| lens aperture2.2 | 28mm ( wide ) | 1/4.0" | Auto focus |
5 megapixel| lens aperture2.4 | 1/4.0" | Auto focus |
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Secondary camera |
1 mega pixel |
2 megapixel| lens aperture2.8 |
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Loud speaker |
Yes | Yes | |
Audio jack |
Yes | Yes | |
WLAN |
Wi-Fi 802.11 b/g/n | dlna | hotspot | Wi-Fi 802.11 b/g/n | hotspot | |
Bluetooth |
4.0 | a2dp | 4.1.0 | a2dp | |
GPS |
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NFC |
No | No | |
Radio |
FM Radio | FM Radio | |
USB |
microusb 2.0 | microusb 2.0 | |
Sensors |
accelerometer | proximity | compass | accelerometer | proximity | |
Battery |
Li-lon 2500 mAh | removable | Li-lon 2100 mAh | removable | |
Battery Charge |
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Colors |
cyan color gradations, orange, white, black | black, white | |
Network technology |
gsm / hspa | gsm / hspa / lte | |
5G bands |
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Network speed |
hspa 42.2/5.76 mbps | hspa 42.2/5.76 mbps lte cat4 150/50 mbps | |
GPRS |
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EDGE |
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Approx price |
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150 GBP
171 EUR
1680 NOK
1800 SEK
10900 RUB
180 USD
920 BRL
250 AUD
230000 KRW
24000 JPY
240 SGD
770 MYR
640 AED
2900 ZAR
