Celkon A402 vs Lava X28 Plus

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: 71 g lighter

    A402:
    104 g
    X28 Plus:
    175 g
  • Width

    A402: 14 mm narrower

    A402:
    64 mm
    X28 Plus:
    78 mm
  • Screen diagonal

    A402: 1.5 in smaller diagonal

    A402:
    4 in
    X28 Plus:
    5.5 in
  • Depth

    X28 Plus: 1.2 mm thinner

    A402:
    10.2 mm
    X28 Plus:
    9 mm
  • Height

    A402: 29.5 mm shorter

    A402:
    125.5 mm
    X28 Plus:
    155 mm
  • Release year

    A402:
    2015
    X28 Plus:
    2017

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. A402

    Height:
    125.5 mm
    Width:
    64 mm
    Depth:
    10.2 mm +1.2 mm versus X28 Plus
  2. 2. X28 Plus

    Height:
    155 mm +29.5 mm versus A402
    Width:
    78 mm +14 mm versus A402
    Depth:
    9 mm

Weight

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

  1. 1. A402

    104 g

  2. 2. X28 Plus

    175 g

    +71 g versus A402

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. A402

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. X28 Plus

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

X28 Plus has approximately 83.1% more rectangular screen area than A402.

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 A402, X28 Plus, compared at the same storage capacity.
StorageA402X28 Plus
8 GB Unknown 1 GB RAM
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. A402

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

2. X28 Plus

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. A402

    2000 mAh

  2. 2. X28 Plus

    2600 mAh

    +600 mAh versus A402

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. A4022. X28 Plus

Everyday essentials
Everyday essentials — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Dimensions (HxWxD)
  • 125.5 Х 64 Х 10.2 mm
  • 155 Х 78 Х 9 mm
Weight
  • 104 g
  • 175 g
Technology Unknown
  • IPS LCD
Screen size
  • 4" inch
  • 5.5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2600 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 6.0 (Marshmallow)
Chipset
  • Spreadtrum 7715
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 83.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 56.7%
  • 69.0%
PPI /points per inch/
  • 233 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
Performance

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

Performance — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Processor CPU
  • 1.2 GHz
  • Quad-core 1.3 GHz
Graphics processor GPU
  • Mali-400
Unknown
Antutu 7 score * Unknown
  • 11560
GeekBench 4 Single Core * Unknown
  • 410
GeekBench 4 Multi-Core * Unknown
  • 1050
General specs
General specs — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Release date
  • 2015
  • June
  • 2017
  • February
Colors
  • White
  • Black
  • Blue
  • Silver
  • Black/Gold
Communication and Connectivity
Communication and Connectivity — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
SIM card
  • Dual SIM
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Speed
  • Yes
  • 384 kbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.46 W/kg (head) 0.82 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A402, X28 Plus.
SpecificationA402X28 Plus
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity - For India