Allview Impera S 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: 52.2 g lighter

    Impera S:
    156.2 g
    A402:
    104 g
  • Width

    A402: 8.1 mm narrower

    Impera S:
    72.1 mm
    A402:
    64 mm
  • Screen diagonal

    A402: 1.5 in smaller diagonal

    Impera S:
    5.5 in
    A402:
    4 in
  • Chipset

    Impera S:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
    A402:
    Spreadtrum 7715
  • Depth

    Impera S: 1.4 mm thinner

    Impera S:
    8.8 mm
    A402:
    10.2 mm
  • Height

    A402: 19.4 mm shorter

    Impera S:
    144.9 mm
    A402:
    125.5 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. Impera S

    Height:
    144.9 mm +19.4 mm versus A402
    Width:
    72.1 mm +8.1 mm versus A402
    Depth:
    8.8 mm
  2. 2. A402

    Height:
    125.5 mm
    Width:
    64 mm
    Depth:
    10.2 mm +1.4 mm versus Impera S

Weight

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

  1. 1. Impera S

    156.2 g

    +52.2 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.

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

  1. 1. Impera S

    Impera S: Screen geometry unavailable or conflicting.

  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.

Recorded RAM for Impera S, A402, compared at the same storage capacity.
StorageImpera SA402
8 GB 1 GB RAM Unknown
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 S

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 S

    2000 mAh

  2. 2. A402

    2000 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. Impera S2. A402

Everyday essentials
Everyday essentials — specifications for Impera S, A402.
SpecificationImpera SA402
Dimensions (HxWxD)
  • 144.9 Х 72.1 Х 8.8 mm
  • 125.5 Х 64 Х 10.2 mm
Weight
  • 156.2 g
  • 104 g
Technology
  • IPS LCD
Unknown
Screen size
  • 5.5" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded 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
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 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 S, A402.
SpecificationImpera SA402
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 68.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 66.0%
  • 56.7%
PPI /points per inch/
  • 294 PPI
  • 233 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for Impera S, A402.
SpecificationImpera SA402
Rear camera, main
  • 8 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 3.15 MP
Functions
  • Dual-LED flash
  • panorama
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP
  • 1.3 MP
Performance
Performance — specifications for Impera S, A402.
SpecificationImpera SA402
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • 1.2 GHz
Graphics processor GPU
  • Adreno 302
  • Mali-400
General specs
General specs — specifications for Impera S, A402.
SpecificationImpera SA402
Release date
  • 2014
  • June
  • 2015
  • June
Colors
  • Black
  • White
  • Black
  • Blue
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
Unknown
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 8 h 20 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Impera S, A402.
SpecificationImpera SA402
SIM card
  • Dual SIM (dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100)
  • 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 S, A402.
SpecificationImpera SA402
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Impera S, A402.
SpecificationImpera SA402
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer