Microsoft Lumia 640 Dual SIM vs Nokia Lumia 520

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          General Info

          Manufacturer
          Microsoft Nokia
          Announced
          March 2015 February 2013
          Status
          Available - April 2015 Available - April 2013
          Price
          Rs. 8,999 ($132.34) [Similarly Priced] -
          Colors
          Yes Yellow, red, cyan, white/black
          Form Factor
          Candybar Candybar
          Dimension
          141.3 x 72.2 x 8.8 mm
          (5.56 x 2.84 x 0.35 in)
          119.9 x 64 x 9.9 mm
          (4.72 x 2.52 x 0.39 in)
          Weight
          145 g (5.11 oz) 124 g (4.37 oz)
          2G Network
          GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
          3G Network
          HSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100
          HSDPA 850 / 1900 / 2100
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

          Hardware and OS

          OS
          Microsoft Windows Phone 8.1 with Lumia Denim Microsoft Windows Phone 8
          Processor
          Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 [Similar]
          GPU
          Adreno 305 [Similar] Adreno 305 [Similar]
          RAM
          1 GB [Browse Similar] 512 MB [Browse Similar]
          Internal Memory
          8 GB 8 GB storage
          External Memory
          microSD, up to 128 GB microSD, up to 64 GB

          Display

          Type
          IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen
          Colors
          16M colors 16M colors
          Size
          5.0 inches [Similar] 4.0 inches [Similar]
          Resolution
          720 x 1280 pixels (294 ppi) [Similar] 480 x 800 pixels (233 ppi) [Similar]
          Screen-to-Body Ratio
          67.43% 59.47%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          8 MP, 3264 x 2448 pixels [Similar] 5 MP, 2592х1944 pixels [Similar]
          Flash
          LED flash No
          Features
          Auto focus, 1/4'' Sensor Size Auto focus, Geo-tagging
          Video
          1080p@30fps Yes, 720p@30fps
          Front Camera
          1 MP, 720p [Similar] No [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack yes
          Radio
          FM radio FM Radio
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSPA 42.2/5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
          Bluetooth
          v4.0, A2DP Yes, v4.0 with A2DP
          Wi-Fi
          Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 b/g/n
          USB
          microUSB v2.0 Yes, microUSB v2.0
          GPS
          Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS support and GLONASS
          Browser
          HTML5 HTML5

          User Memory

          Internal
          8 GB, 1 GB RAM 8 GB storage, 512 MB RAM
          Expandable Storage
          microSD, up to 128 GB microSD, up to 64 GB

          Sensors

          Fingerprint
          fingerprint not supported fingerprint not supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          NFC
          NFC not supported NFC not supported

          Battery

          Type
          Li-Ion Battery Li-Ion Battery
          Capacity
          2500 mAh 1430 mAh
          Stand by
          Up to 840 h (2G)
          Up to 840 h (3G)
          Up to 384 h (3G)
          Up to 360 h (3G)
          Talk Time
          Up to 27 h 30 min (2G)
          Up to 20 h 30 min (3G)
          Up to 17 h 24 min (2G)
          Up to 9 h 42 min (3G)

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