You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.<
  1. Home
  2. Allview Viper E vs Karbonn A21

Allview Viper E vs Karbonn A21

Compare recorded specifications, size and practical differences.

Karbonn A21

Karbonn A21

Replace A21
Enter at least 3 characters. Tab to a result and press Enter to select.

    Remove A21
    + Add a third phone
    Enter at least 3 characters. Tab to a result and press Enter to select.

      Key differences

      Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

      • Release year2014 / 2012Viper E: 2014 · A21: 2012

      Physical size

      Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

      Front
      Viper E: 131 × 65 mm 1
      Side
      Viper E: 131 × 7.8 mm 1
      1. 1. Viper E
        Height
        131 mm
        Width
        65 mm
        Depth
        7.8 mm
        Weight
        122.5 g
      2. 2. A21
        Height
        Unknown
        Width
        Unknown
        Depth
        Unknown
        Weight
        Unknown

        Unavailable dimensions are omitted from the drawing.

      Screen size

      Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

      Screen size
      Viper E: 4.5 in, 16:9, About 55.8 cm² rectangular area 1 A21: 4.5 in, 5:3, About 57.6 cm² rectangular area 2
      1. 1. Viper E 4.5 in · 16:9 About 55.8 cm² rectangular area
      2. 2. A21 4.5 in · 5:3 About 57.6 cm² rectangular area

      A21 has approximately 3.2% more rectangular screen area than Viper E.

      Memory variants

      Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

      Recorded RAM by storage capacity and phone
      StorageViper EA21
      8 GB 1 GB RAM Unknown
      A21: Original memory entry

      4 GB · 512 MB RAM

      Practical features

      Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

      1. Viper E

      NFC
      See details Super AMOLED
      Headphone jack
      Yes
      Memory card support
      See details microSD · up to 32 GB (dedicated slot)

      2. A21

      NFC
      Unknown
      Headphone jack
      Yes
      Memory card support
      See details microSD · up to 32 GB (dedicated slot)

      Battery capacity

      Capacity is not battery life. No endurance test is implied.

      Recorded capacity

      Bars start at zero and share a scale within this chart.

      1. 1. Viper E1800 mAh
      2. 2. A211800 mAh

      Specifications

      Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

      1. Viper E2. A21

      Everyday essentials
      Everyday essentials
      SpecificationViper EA21
      Dimensions (HxWxD)
      • 131 Х 65 Х 7.8 mm
      • Х Х mm
      Weight
      • 122.5 g
      • 0 g
      Technology
      • IPS LCD
      • TFT
      Screen size
      • 4.5" inch
      • 4.5" inch
      Screen resolution
      • 480 x 854 px
      • 480 x 800 px
      Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
      • 8 GB
      • 1 GB RAM
      • 4 GB
      • 512 MB RAM
      Memory card support
      • microSD
      • up to 32 GB (dedicated slot)
      • microSD
      • up to 32 GB (dedicated slot)
      BatteryCapacity is not battery life. No endurance test is implied.
      • 1800 mAh
      • Removable Li-Ion
      • 1800 mAh
      • Removable Li-Ion
      Operating system OS
      • Android 5.0 (Lollipop)
      • Android 4.0 (Ice Cream Sandwich)
      Chipset
      • Mediatek MT6582 (28 nm)
      		 Unknown
      NFC
      • Super AMOLED
      		 Unknown
      Headphone jack
      • Yes
      • Yes
      Display
      Display
      SpecificationViper EA21
      Touchscreen
      • capacitive touchscreen
      • capacitive touchscreen
      Display colors
      • Super AMOLED
      • 256K
      Screen area
      • 55.8 cm2
      • 57.6 cm2
      Screen format
      • 16:9 (height:width)
      • 5:3 (height:width)
      Screen to body ratio
      • 127.3 Х 65.5 Х 10 mm
      		 Unknown
      PPI /points per inch/
      • 218 PPI
      • 207 PPI
      Screen protection
      • Asahi Dragontrail Glass
      		 Unknown
      Camera and Video
      Camera and Video
      SpecificationViper EA21
      Rear camera, main
      • 8 MP
      • Single
      • 5 MP
      • Single
      Camera specs
      • 8 MP
      • AF
      • 5 MP
      • AF
      Functions
      • Dual-LED flash
      • HDR
      • LED flash
      Video
      • 1080p@30fps
      • Yes
      Front camera, selfie
      • 2 MP
      • Single
      • 1.3 MP
      • Single
      Specifications
      • 2 MP
      • 1.3 MP
      Performance
      Performance
      SpecificationViper EA21
      Processor CPU
      • Quad-core 1.3 GHz Cortex-A7
      • Dual-core 1.2 GHz
      Graphics processor GPU
      • Mali-400MP2 Z525 -Mali-T720MP2 Z528
      		 Unknown
      General specs
      General specs
      SpecificationViper EA21
      Release date
      • 2014
      • September
      • 2012
      Colors
      • Black
      • White
      • Pearl White
      Historical recorded priceLegacy catalogue value; date unknown. Not a current offer. Unknown
      • 130 EUR
      Battery life
      • Stand by time- Up to 225 h Talking time- Up to 9 h 15 min
      • Stand by time- Up to 200 h Talking time- Up to 5 h
      Communication and Connectivity
      Communication and Connectivity
      SpecificationViper EA21
      SIM card
      • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
      • dual stand-by)
      • Dual SIM (Mini-SIM)
      Network
      • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100)
      • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
      Speed
      • HSPA 21.1/5.76 Mbps
      • HSPA 7.2/0.384 Mbps
      GPRS
      • Class 12
      • Yes
      Edge
      • Class 10
      • Yes
      Wi-Fi
      • Wi-Fi 802.11 b/g/n
      • Wi-Fi 802.11 b/g/n
      GPS
      • Yes
      • with A-GPS
      • Yes
      • with A-GPS
      USB
      • microUSB 2.0
      • microUSB 2.0
      Bluetooth
      • 4.0
      • A2DP
      • EDR
      • 2.1
      • A2DP
      Harmful irradiation
      • SAR EU - 0.84 W/kg (head) 1.24 W/kg (body)
      • SAR EU - 0.44 W/kg (head)
      Music and Audio
      Music and Audio
      SpecificationViper EA21
      Radio
      • FM radio
      • No
      Others
      • DTS sound -Yamaha amplifier
      		 Unknown
      Other features
      Other features
      SpecificationViper EA21
      Dop
      • Sensors Accelerometer
      • proximity
      • compass
      • Sensors Accelerometer
      • proximity

      Similar comparisons