Nokia Lumia 638
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CPU Quad-core 1.2 GHz Cortex-A7
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RAM 1GB RAM
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Storage 8GB
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Display 4.5 inches,480 x 854 pixels
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Camera 5 MP,
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OS Microsoft Windows Phone 8.1
Nokia Lumia 638 - Specs
Network
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TechnologyGSM / HSPA / LTE
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2G bandsGSM 850 / 900 / 1800 / 1900
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3G bandsHSDPA 850 / 900 / 1900 / 2100 - RM-1010
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4G bands3, 7, 38, 39, 40, 41
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SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Launch
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Announced2014, December. Released 2014, December
Body
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Dimensions129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in)
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Weight136 g (4.80 oz)
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SIMDual SIM (Nano-SIM, dual stand-by)
Display
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TypeIPS LCD capacitive touchscreen, 16M colors
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Size4.5 inches, 55.8 cm2 (~64.6% screen-to-body ratio)
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Resolution480 x 854 pixels, 16:9 ratio (~218 ppi density)
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ProtectionCorning Gorilla Glass 3 ClearBlack display
Platform
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OSMicrosoft Windows Phone 8.1
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ChipsetQualcomm Snapdragon 400 (28 nm)
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CPUQuad-core 1.2 GHz Cortex-A7
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GPUAdreno 305
Memory
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Card slotmicroSDXC (uses shared SIM slot)
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Internal8GB 1GB RAM eMMC 4.5
Main Camera
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Single5 MP, 1/4.0", AF
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FeaturesPanorama
Selfie camera
Sound
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LoudspeakerYes
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3.5mm jackYes
Comms
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WLANWi-Fi 802.11 b/g/n, DLNA, hotspot
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Bluetooth4.0, A2DP, LE/ aptX after WP8 Denim update
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GPSYes, with A-GPS, GLONASS
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NFCNo
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RadioFM radio
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USBmicroUSB 2.0
Features
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SensorsAccelerometer
Battery
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TypeLi-Ion 1830 mAh, removable (BL-5H)
Misc
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ColorsBlack
Nokia Lumia 638 - Videos
