Karbonn A21 vs Spice Mi-491 Stellar Virtuoso Pro

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          General Info

          Manufacturer
          Karbonn Spice
          Announced
          2012 June 2013
          Status
          Available Available - July 2013
          Colors
          Pearl White Black
          Form Factor
          Candybar Candybar
          Dimension
          - 135 x 68 x 9.9 mm
          (5.31 x 2.68 x 0.39 in)
          Weight
          - 143 g (5.04 oz)
          2G Network
          GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
          3G Network
          HSDPA 2100 HSDPA 2100
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

          Hardware and OS

          OS
          Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.1 (Jelly Bean)
          Processor
          Dual-core 1.2 GHz [Similar] Dual-core 1 GHz, MediaTek MT6577 [Similar]
          GPU
          - PowerVR SGX531 [Similar]
          RAM
          512 MB [Browse Similar] 512 MB [Browse Similar]
          Internal Memory
          4 GB 4 GB
          External Memory
          microSD, up to 32 GB microSD, up to 32 GB

          Display

          Type
          TFT capacitive touchscreen TFT capacitive touchscreen
          Colors
          256K colors 16M colors
          Size
          4.5 inches [Similar] 4.5 inches [Similar]
          Resolution
          480 x 800 pixels (207 ppi) [Similar] 480 x 854 pixels (218 ppi) [Similar]
          Screen-to-Body Ratio
          - 60.62%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          5 MP, 2592х1944 pixels [Similar] 5 MP, 2592 х 1944 pixels [Similar]
          Flash
          LED flash LED flash
          Features
          Auto focus, Geo-tagging, Face Detection Autofocus, Zoom, Night vision
          Video
          Yes Yes
          Front Camera
          Yes, 1.3 MP [Similar] Yes, 1.3 MP [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack yes
          Radio
          No FM radio
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps
          Edge
          Yes Class 12
          3G
          HSDPA, 7.2 Mbps HSDPA, HSUPA
          Bluetooth
          Yes, v2.1 with A2DP Yes, v3.0
          Wi-Fi
          Wi-Fi 802.11 b/g/n Yes
          USB
          Yes, microUSB v2.0 Yes, microUSB
          GPS
          Yes, with A-GPS support A-GPS support only
          Browser
          HTML HTML

          User Memory

          Internal
          4 GB, 512 MB RAM 4 GB, 512 MB RAM
          Expandable Storage
          microSD, up to 32 GB microSD, up to 32 GB

          Sensors

          Fingerprint
          fingerprint not supported fingerprint not supported
          Proximity Sensor
          proximity sensor present proximity sensor not 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
          1800 mAh 1700 mAh
          Stand by
          Up to 200 h Up to 210 h
          Talk Time
          Up to 5 h Up to 5 h

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