Allview Impera M vs Celkon A402

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

    A402: 6 g lighter

    Impera M:
    110 g
    A402:
    104 g
  • Chipset

    Impera M:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
    A402:
    Spreadtrum 7715
  • Height

    Impera M: 3 mm shorter

    Impera M:
    122.5 mm
    A402:
    125.5 mm
  • Release year

    Impera M:
    2014
    A402:
    2015

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. Impera M

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm
  2. 2. A402

    Height:
    125.5 mm +3 mm versus Impera M
    Width:
    64 mm
    Depth:
    10.2 mm

Weight

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

  1. 1. Impera M

    110 g

    +6 g versus A402

  2. 2. A402

    104 g

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. Impera M

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. A402

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

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Impera M: Original memory entry

4 GB · 512 MB RAM - Liquid M2208 GB

A402: 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. Impera M

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

2. A402

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

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. Impera M

    1420 mAh

  2. 2. A402

    2000 mAh

    +580 mAh versus Impera M

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. Impera M2. A402

Everyday essentials
Everyday essentials — specifications for Impera M, A402.
SpecificationImpera MA402
Dimensions (HxWxD)
  • 122.5 Х 64.4 Х 9.9 mm
  • 125.5 Х 64 Х 10.2 mm
Weight
  • 110 g
  • 104 g
Technology
  • TFT
Unknown
Screen size
  • 4" inch
  • 4" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM - Liquid M2208 GB
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1420 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Microsoft Windows Phone 8.1
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Spreadtrum 7715
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Impera M, A402.
SpecificationImpera MA402
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 45.5 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 57.7%
  • 56.7%
PPI /points per inch/
  • 233 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Impera M, A402.
SpecificationImpera MA402
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • 3.15 MP
Functions
  • Dual-LED flash
  • LED flash
Video
  • 480p@30fps
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP or VGA
  • 1.3 MP
Performance

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

Performance — specifications for Impera M, A402.
SpecificationImpera MA402
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • 1.2 GHz
Graphics processor GPU
  • Adreno 302
  • Mali-400
Antutu 7 score *
  • 11836
Unknown
General specs
General specs — specifications for Impera M, A402.
SpecificationImpera MA402
Release date
  • 2014
  • October
  • 2015
  • June
Colors
  • Black
  • White
  • Black
  • Blue
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h 30 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Impera M, A402.
SpecificationImpera MA402
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • Yes
  • 384 kbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • Yes
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.46 W/kg (head) 0.82 W/kg (body)
Music and Audio
Music and Audio — specifications for Impera M, A402.
SpecificationImpera MA402
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Impera M, A402.
SpecificationImpera MA402
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer