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  2. BLU Studio Mini vs Karbonn A21

BLU Studio Mini vs Karbonn A21

Compare recorded specifications, size and practical differences.

Karbonn A21

Karbonn A21

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      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.

      • Screen diagonalA21: 1 in smaller diagonalA21: 4.5 in · Studio Mini: 5.5 in
      • Release year2019 / 2012Studio Mini: 2019 · 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
      Studio Mini: 150.5 × 71.5 mm 1
      Side
      Studio Mini: 150.5 × 10.4 mm 1
      1. 1. Studio Mini
        Height
        150.5 mm
        Width
        71.5 mm
        Depth
        10.4 mm
        Weight
        187 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
      Studio Mini: 5.5 in, 18:9, About 78.1 cm² rectangular area 1 A21: 4.5 in, 5:3, About 57.6 cm² rectangular area 2
      1. 1. Studio Mini 5.5 in · 18:9 About 78.1 cm² rectangular area
      2. 2. A21 4.5 in · 5:3 About 57.6 cm² rectangular area

      Studio Mini has approximately 35.4% more rectangular screen area than A21.

      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
      StorageStudio MiniA21
      32 GB 2 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. Studio Mini

      NFC
      Unknown
      Headphone jack
      Yes
      Memory card support
      See details microSD · up to 64 GB

      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. Studio Mini3000 mAh

        +1200 mAh versus A21

      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. Studio Mini2. A21

      Everyday essentials
      Everyday essentials
      SpecificationStudio MiniA21
      Dimensions (HxWxD)
      • 150.5 Х 71.5 Х 10.4 mm
      • Х Х mm
      Weight
      • 187 g
      • 0 g
      Technology
      • IPS LCD
      • TFT
      Screen size
      • 5.5" inch
      • 4.5" inch
      Screen resolution
      • 720 x 1440 px
      • 480 x 800 px
      Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
      • 32GB 2GB RAM
      • 4 GB
      • 512 MB RAM
      Memory card support
      • microSD
      • up to 64 GB
      • microSD
      • up to 32 GB (dedicated slot)
      BatteryCapacity is not battery life. No endurance test is implied.
      • 3000 mAh
      • Removable Li-Po
      • 1800 mAh
      • Removable Li-Ion
      Operating system OS
      • Android 9.0 (Pie)
      • Android 4.0 (Ice Cream Sandwich)
      Headphone jack
      • Yes
      • Yes
      Display
      Display
      SpecificationStudio MiniA21
      Touchscreen
      • capacitive touchscreen
      • capacitive touchscreen
      Display colors
      • 16M
      • 256K
      Screen area
      • 78.1 cm2
      • 57.6 cm2
      Screen format
      • 18:9 (height:width)
      • 5:3 (height:width)
      Screen to body ratio
      • 72.5%
      		 Unknown
      PPI /points per inch/
      • 293 PPI
      • 207 PPI
      Camera and Video
      Camera and Video
      SpecificationStudio MiniA21
      Rear camera, main
      • 13 MP
      • Single
      • 5 MP
      • Single
      Camera specs
      • 13 MP
      • AF
      • 5 MP
      • AF
      Functions
      • LED flash
      • LED flash
      Video
      • 1080p@30fps
      • Yes
      Front camera, selfie
      • 8 MP
      • Single
      • 1.3 MP
      • Single
      Specifications
      • 8 MP
      • 1.3 MP
      Performance
      Performance
      SpecificationStudio MiniA21
      Processor CPU
      • Octa-core 1.6 GHz Cortex-A55
      • Dual-core 1.2 GHz
      Graphics processor GPU
      • IMG8322
      		 Unknown
      General specs
      General specs
      SpecificationStudio MiniA21
      Release date
      • 2019
      • September
      • 2012
      Colors
      • Black
      • Pearl White
      Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
      • 80 USD
      • 130 EUR
      Battery life
      • Stand by time- Up to 600 h (2G) / Up to 550 h (3G) Talking time- Up to 21 h (2G) / Up to 16 h (3G)
      • Stand by time- Up to 200 h Talking time- Up to 5 h
      Communication and Connectivity
      Communication and Connectivity
      SpecificationStudio MiniA21
      SIM card
      • Dual SIM (Nano-SIM
      • dual stand-by)
      • Dual SIM (Mini-SIM)
      Network
      • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 -4G - LTE band 2(1900)
      • 4(1700/2100)
      • 5(850)
      • 12(700)
      • 17(700)
      • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
      Speed
      • HSPA 42.2/11.5 Mbps
      • LTE Cat4 150/50 Mbps
      • HSPA 7.2/0.384 Mbps
      GPRS
      • Yes
      • Yes
      Edge
      • Yes
      • Yes
      Wi-Fi
      • Wi-Fi 802.11 b/g/n
      • Wi-Fi Direct
      • hotspot
      • Wi-Fi 802.11 b/g/n
      GPS
      • Yes
      • with A-GPS
      • Yes
      • with A-GPS
      USB
      • microUSB 2.0
      • microUSB 2.0
      Bluetooth
      • 4.1
      • A2DP
      • 2.1
      • A2DP
      Harmful irradiation Unknown
      • SAR EU - 0.44 W/kg (head)
      Music and Audio
      Music and Audio
      SpecificationStudio MiniA21
      Radio
      • FM radio
      • No
      Other features
      Other features
      SpecificationStudio MiniA21
      Dop
      • Sensors Accelerometer
      • proximity
      • Sensors Accelerometer
      • proximity

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