Celkon A9 Dual vs Xiaomi MI-2a

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.

  • Weight

    A9 Dual: 17 g lighter

    A9 Dual:
    116 g
    MI-2a:
    133 g
  • Width

    A9 Dual: 2.6 mm narrower

    A9 Dual:
    63.9 mm
    MI-2a:
    66.5 mm
  • Screen diagonal

    A9 Dual: 1 in smaller diagonal

    A9 Dual:
    3.5 in
    MI-2a:
    4.5 in
  • Depth

    MI-2a: 1.1 mm thinner

    A9 Dual:
    10.6 mm
    MI-2a:
    9.5 mm
  • Height

    A9 Dual: 12.5 mm shorter

    A9 Dual:
    120.5 mm
    MI-2a:
    133 mm
  • Release year

    A9 Dual:
    2014
    MI-2a:
    2013

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. A9 Dual

    Height:
    120.5 mm
    Width:
    63.9 mm
    Depth:
    10.6 mm +1.1 mm versus MI-2a
  2. 2. MI-2a

    Height:
    133 mm +12.5 mm versus A9 Dual
    Width:
    66.5 mm +2.6 mm versus A9 Dual
    Depth:
    9.5 mm

Weight

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

  1. 1. A9 Dual

    116 g

  2. 2. MI-2a

    133 g

    +17 g versus A9 Dual

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.

  1. 1. A9 Dual

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. MI-2a

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²

MI-2a has approximately 53% more rectangular screen area than A9 Dual.

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 A9 Dual, MI-2a, compared at the same storage capacity.
StorageA9 DualMI-2a
16 GB Unknown 1 GB RAM
A9 Dual: Original memory entry

512 MB · 256 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. A9 Dual

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

2. MI-2a

NFC:
Yes
Headphone jack:
Yes
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. A9 Dual

    1350 mAh

  2. 2. MI-2a

    2030 mAh

    +680 mAh versus A9 Dual

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. A9 Dual2. MI-2a

Everyday essentials
Everyday essentials — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Dimensions (HxWxD)
  • 120.5 Х 63.9 Х 10.6 mm
  • 133 Х 66.5 Х 9.5 mm
Weight
  • 116 g
  • 133 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 4.5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Li-Ion
  • 2030 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 4.1 (Jelly Bean)
Chipset Unknown
  • Xiaolong S4 Pro
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 55.8 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 47.4%
  • 63.1%
PPI /points per inch/
  • 165 PPI
  • 326 PPI
Camera and Video
Camera and Video — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
  • AF
  • f/2.0
Functions Unknown
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Processor CPU
  • Dual-core 1.0 GHz
  • Dual-core 1.7 GHz
Graphics processor GPU Unknown
  • Adreno 320
Antutu 7 score * Unknown
  • 21326
GeekBench 4 Single Core * Unknown
  • 742
GeekBench 4 Multi-Core * Unknown
  • 1151
GeekBench 4 RenderScript * Unknown
  • 1277
General specs
General specs — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Release date
  • 2014
  • 2013
Colors
  • White
  • Black
  • Black (front panel)
  • 4 color options (back panel)
Battery life
  • Stand by time- Up to 240 h Talking time- Up to 3 h 20 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
SIM card
  • Dual SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.61 W/kg (head) 0.69 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A9 Dual, MI-2a.
SpecificationA9 DualMI-2a
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass