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Karbonn Smart A12 Star vs Xiaomi Mi 8 Explorer

Compare recorded specifications, size and practical differences.

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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.

    • Display technology

      OLED versus LCD

      Smart A12 Star:
      LCD
      Mi 8 Explorer:
      OLED

    • Weight

      Smart A12 Star: 47 g lighter

      Smart A12 Star:
      130 g
      Mi 8 Explorer:
      177 g

    • Width

      Smart A12 Star: 10.6 mm narrower

      Smart A12 Star:
      64.2 mm
      Mi 8 Explorer:
      74.8 mm

    • Screen diagonal

      Smart A12 Star: 2.21 in smaller diagonal

      Smart A12 Star:
      4 in
      Mi 8 Explorer:
      6.21 in

    • Rear camera layout

      Smart A12 Star:
      Single
      Mi 8 Explorer:
      Dual

    • Depth

      Mi 8 Explorer: 2.5 mm thinner

      Smart A12 Star:
      10.1 mm
      Mi 8 Explorer:
      7.6 mm

    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.

    1. 1. Smart A12 Star

      Height:
      124.2 mm
      Width:
      64.2 mm
      Depth:
      10.1 mm +2.5 mm versus Mi 8 Explorer

    2. 2. Mi 8 Explorer

      Height:
      154.9 mm +30.7 mm versus Smart A12 Star
      Width:
      74.8 mm +10.6 mm versus Smart A12 Star
      Depth:
      7.6 mm

    Weight

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

    1. 1. Smart A12 Star

      130 g

    2. 2. Mi 8 Explorer

      177 g

      +47 g versus Smart A12 Star

    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.

    At least two phones need compatible screen dimensions for a drawing.

    1. 1. Smart A12 Star

      Screen diagonal:
      4 in
      Aspect ratio (height:width):
      5:3
      Approximate rectangular screen area:
      45.5 cm²

    2. 2. Mi 8 Explorer

      Mi 8 Explorer: Screen geometry unavailable or conflicting.

    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 for Smart A12 Star, Mi 8 Explorer, compared at the same storage capacity.
    StorageSmart A12 StarMi 8 Explorer
    128 GB Unknown 8 GB RAM
    Smart A12 Star: 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. Smart A12 Star

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 32 GB

    2. Mi 8 Explorer

    NFC:
    Yes
    Headphone jack:
    No
    Memory card support:
    No

    Battery capacity

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

    Recorded battery capacity

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

    1. 1. Smart A12 Star

      1400 mAh

    2. 2. Mi 8 Explorer

      3000 mAh

      +1600 mAh versus Smart A12 Star

    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. Smart A12 Star2. Mi 8 Explorer

    Everyday essentials
    Everyday essentials — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Dimensions (HxWxD)
    • 124.2 Х 64.2 Х 10.1 mm
    • 154.9 Х 74.8 Х 7.6 mm
    Weight
    • 130 g
    • 177 g
    Technology
    • IPS LCD
    • Super AMOLED
    Screen size
    • 4" inch
    • 6.21" inch
    Screen resolution
    • 480 x 800 px
    • 1080 x 2248 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 4 GB
    • 512 MB RAM
    • 128 GB
    • 8 GB RAM
    Memory card support
    • microSD
    • up to 32 GB
    • No
    Battery Capacity is not battery life. No endurance test is implied.
    • 1400 mAh
    • Li-Ion
    • 3000 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 4.4.2 (KitKat)
    • Android 8.1 (Oreo)
    • upgradable to Android 9.0 (Pie); MIUI 10.1
    Chipset Unknown
    • Qualcomm SDM845 Snapdragon 845 (10 nm)
    NFC Unknown
    • Yes
    Headphone jack
    • Yes
    • No
    Display
    Display — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 45.5 cm2
    • 97.1 cm2
    Screen format
    • 5:3 (height:width)
    		 Unknown
    Screen to body ratio
    • 57.1%
    • 83.8%
    PPI /points per inch/
    • 233 PPI
    • 0 PPI
    Screen protection Unknown
    • Corning Gorilla Glass 5
    Camera and Video
    Camera and Video — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Rear camera, main
    • 5 MP
    • Single
    • 12 MP
    • Dual
    Camera specs
    • 5 MP
    • 12 MP
    • f/1.8
    • 1/2.55''
    • 1.4µm
    • 4-axis OIS
    • dual pixel PDAF -12 MP
    • f/2.4
    • 1/3.4''
    • 1.0µm
    • AF
    • 2x optical zoom
    Functions
    • LED flash
    • Dual-LED flash
    • HDR
    • panorama
    Video
    • Yes
    • 1080p@30fps
    Front camera, selfie
    • 0.3 MP
    • Single
    • 20 MP
    • Single
    Specifications
    • VGA
    • 20 MP
    • f/2.0
    • 0.9μm
    Performance
    Performance — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Processor CPU
    • Dual-core 1.2 GHz
    • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
    Graphics processor GPU Unknown
    • Adreno 630
    General specs
    General specs — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Release date
    • 2014
    • July
    • 2018
    • May
    Colors
    • Black
    • Black (transparent back)
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 50 EUR
    • 500 EUR
    Battery life
    • Stand by time- Up to 300 h
    		 Unknown
    Body build Unknown
    • Front/back glass
    • aluminum frame (7000 series)
    Communication and Connectivity
    Communication and Connectivity — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    SIM card
    • Dual SIM (Micro-SIM
    • dual stand-by)
    • Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
    • 2(1900)
    • 3(1800)
    • 4(1700/2100)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 12(700)
    • 17(700)
    • 20(800)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500)
    Speed
    • HSPA
    • HSPA 42.2/5.76 Mbps
    • LTE-A (4CA) Cat16 1024/150 Mbps
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 b/g/n
    • hotspot
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • DLNA
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • Yes
    • with dual-band A-GPS
    • GLONASS
    • BDS
    • GALILEO
    • QZSS
    USB
    • microUSB 2.0
    • Type-C 1.0 reversible connector
    Bluetooth
    • 2.0
    • 5.0
    • A2DP
    • LE
    • aptX HD
    Harmful irradiation
    • SAR EU - 0.79 W/kg (head)
    		 Unknown
    Music and Audio
    Music and Audio — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Radio
    • FM radio
    • No
    Others Unknown
    • HDR10 -DCI-P3
    • Active noise cancellation with dedicated mic
    Other features
    Other features — specifications for Smart A12 Star, Mi 8 Explorer.
    SpecificationSmart A12 StarMi 8 Explorer
    Dop
    • Sensors Accelerometer
    • proximity
    • Sensors Face ID
    • fingerprint (under display)
    • accelerometer
    • gyro
    • proximity
    • barometer
    • compass - Fast battery charging (Quick Charge 4.0+) - For China

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