Microsoft Lumia 640 XL Dual SIM vs Xiaomi Mi 4i

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          General Info

          Manufacturer
          Microsoft Xiaomi
          Announced
          March 2015 April 2015
          Status
          Available - April 2015 Available - April 2015
          Price
          Rs. 12,999 ($191.16) [Similarly Priced] Rs. 8,999 ($132.34) [Similarly Priced]
          Colors
          Matte cyan, Orange, Black, Matte white, Glossy white Black, White, Blue, Yellow, Pink
          Form Factor
          Candybar Candybar
          Dimension
          157.9 x 81.5 x 9 mm
          (6.22 x 3.21 x 0.35 in)
          138.1 x 69.6 x 7.8 mm
          (5.44 x 2.74 x 0.31 in)
          Weight
          171 g (6.03 oz) 130 g (4.59 oz)
          2G Network
          GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
          3G Network
          HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
          4G Network
          - LTE
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

          Hardware and OS

          OS
          Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v5.0 (Lollipop)
          Processor
          Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 [Similar] Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 [Similar]
          GPU
          Adreno 305 [Similar] Adreno 405 [Similar]
          RAM
          1 GB [Browse Similar] 2 GB [Browse Similar]
          Internal Memory
          8 GB 16/32 GB
          External Memory
          microSD, up to 128 GB No

          Display

          Type
          IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD capacitive touchscreen
          Colors
          16M colors 16M colors
          Size
          5.7 inches [Similar] 5.0 inches [Similar]
          Resolution
          720 x 1280 pixels (259 ppi) [Similar] 1080 x 1920 pixels (441 ppi) [Similar]
          Screen-to-Body Ratio
          68.88% 71.57%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          13 MP, 4128 x 3096 pixels [Similar] 13 MP, 4128 x 3096 pixels [Similar]
          Flash
          LED Flash LED flash
          Features
          Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR
          Video
          1080p@30fps 1080p@30fps
          Front Camera
          5 MP, 1080p [Similar] 5 MP [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 HSPA, LTE
          Bluetooth
          v4.0, A2DP v4.0, A2DP
          Wi-Fi
          Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
          USB
          microUSB v2.0 microUSB v2.0
          GPS
          Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS
          Browser
          HTML5 HTML5

          User Memory

          Internal
          8 GB, 1 GB RAM 16/32 GB, 2 GB RAM
          Expandable Storage
          microSD, up to 128 GB No

          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 supported NFC not supported

          Battery

          Type
          Li-Ion Battery Li-Po Battery
          Capacity
          3000 mAh 3120 mAh
          Stand by
          Up to 936 h (2G)
          Up to 936 h (3G)
          -
          Talk Time
          Up to 31 h 20 min (2G)
          Up to 23 h 40 min (3G)
          -

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