Karbonn A12 vs Micromax Bolt A62 vs Nokia Lumia 625

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          General Info

          Manufacturer
          Karbonn Micromax Nokia
          Announced
          February 2013 April 2013 July 2013
          Status
          Available - February 2013 Available - April 2013 Available - August 2013
          Colors
          Black/White Black/White Orange, Bright green, Yellow, Black and white
          Form Factor
          Candybar Candybar Candybar
          Dimension
          135 x 66 x 11 mm
          (5.31 x 2.6 x 0.43 in)
          121.7 x 67.2 x 12.2 mm
          (4.79 x 2.65 x 0.48 in)
          133.2 x 72.2 x 9.2 mm
          (5.24 x 2.84 x 0.36 in)
          Weight
          164 g (5.78 oz) 85 g (3 oz) 159 g (5.61 oz)
          2G Network
          GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
          3G Network
          HSDPA 2100 - SIM 1 only No HSDPA 850 / 900 / 2100 HSDPA
          4G Network
          - - LTE
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

          Hardware and OS

          OS
          Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v2.3.5 (Gingerbread) Microsoft Windows Phone 8
          Processor
          1 GHz, 1 GHz, Dual-core 1.2 GHz Krait, Qualcomm MSM8930 Snapdragon
          GPU
          - - Adreno 305
          RAM
          512 MB 256 MB 512 MB
          Internal Memory
          4 GB 202 MB 8 GB
          External Memory
          microSD, up to 32 GB microSD, up to 16 GB microSD, up to 64 GB

          Display

          Type
          Capacitive Touchscreen TFT touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 2
          Colors
          262K colors 262K colors 16M colors
          Size
          4.5 inches 3.95 inches 4.7 inches
          Resolution
          480 x 854 pixels (218 ppi) 320 x 480 pixels (146 ppi) 480 x 800 pixels (199 ppi)
          Screen-to-Body Ratio
          62.46% 56.85% 65.05%
          Multi-Touch

          Multimedia

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

          Camera

          Rear Camera
          5 MP, 2592х1944 pixels 2 MP, 1600x1200 pixels 5 MP, 2592х1936 pixels
          Flash
          LED flash No LED flash
          Features
          Auto focus, Geo-tagging, Face Detection - Auto focus, Touch focus, Landscape orientation, Auto and manual exposure, Auto and manual white balance, Active toolbar, Full screen viewfinder, Geotagging
          Video
          Yes Yes Yes, 1080p@30fps
          Front Camera
          Yes, VGA Yes, VGA Yes, VGA

          Connectivity and Data Rate

          GPRS
          Yes Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes
          Edge
          Yes Yes Yes
          3G
          HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps No HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
          Bluetooth
          Yes Yes, v2.0 A2DP Yes, v4.0 with A2DP, LE
          Wi-Fi
          Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
          USB
          Yes, microUSB v2.0 Yes Yes, microUSB v2.0
          GPS
          Yes, with A-GPS support No Yes, with A-GPS support and GLONASS
          Browser
          HTML HTML HTML5

          User Memory

          Internal
          4 GB, 512 MB RAM 202 MB, 256 MB RAM, 512 MB ROM 8 GB, 512 MB RAM
          Expandable Storage
          microSD, up to 32 GB microSD, up to 16 GB microSD, up to 64 GB

          Sensors

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

          Battery

          Type
          Li-Ion Battery Li-Ion Battery Non-removable Li-Ion Battery
          Capacity
          1800 mAh 1350 mAh 2000 mAh
          Stand by
          Up to 180 h Up to 120 h Up to 552 h
          Talk Time
          Up to 4 h Up to 4 h Up to 23 h 54 min (2G)
          Up to 15 h 12 min (3G)

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