Karbonn S1 Titanium vs Karbonn A21

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          General Info

          Manufacturer
          Karbonn Karbonn
          Announced
          January 2013 2012
          Status
          Available - January 2013 Available
          Colors
          Black, White Pearl White
          Form Factor
          Candybar Candybar
          Dimension
          134.6 x 66 x 9.3 mm
          (5.3 x 2.6 x 0.37 in)
          -
          Weight
          - -
          2G Network
          GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - 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, v4.1 (Jelly Bean) Android OS, v4.0 (Ice Cream Sandwich)
          Processor
          Quad-core 1.2 GHz [Similar] Dual-core 1.2 GHz [Similar]
          GPU
          - -
          RAM
          1 GB [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
          IPS LCD capacitive touchscreen TFT capacitive touchscreen
          Colors
          16M colors 256K colors
          Size
          4.5 inches [Similar] 4.5 inches [Similar]
          Resolution
          540 x 960 pixels (245 ppi) [Similar] 480 x 800 pixels (207 ppi) [Similar]
          Screen-to-Body Ratio
          62.72% -
          Multi-Touch
          yes multi touch yes multi touch

          Camera

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

          Multimedia

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

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSDPA HSDPA, 7.2 Mbps
          Bluetooth
          Yes, with A2DP Yes, v2.1 with A2DP
          Wi-Fi
          Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n
          USB
          Yes, microUSB v2.0 Yes, microUSB v2.0
          GPS
          Yes, with A-GPS support Yes, with A-GPS support
          Browser
          HTML HTML

          User Memory

          Internal
          4 GB, 1 GB 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 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
          1600 mAh 1800 mAh
          Stand by
          Up to 200 h Up to 200 h
          Talk Time
          Up to 4 h Up to 5 h

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