Celkon A402 vs Nokia 3.1 A

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 g lighter

    A402:
    104 g
    3.1 A:
    156 g
  • Width

    A402: 7.9 mm narrower

    A402:
    64 mm
    3.1 A:
    71.9 mm
  • Screen diagonal

    A402: 1.45 in smaller diagonal

    A402:
    4 in
    3.1 A:
    5.45 in
  • Chipset

    A402:
    Spreadtrum 7715
    3.1 A:
    Qualcomm SDM429 Snapdragon 429
  • Depth

    3.1 A: 0.8 mm thinner

    A402:
    10.2 mm
    3.1 A:
    9.4 mm
  • Height

    A402: 27.2 mm shorter

    A402:
    125.5 mm
    3.1 A:
    152.7 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. A402

    Height:
    125.5 mm
    Width:
    64 mm
    Depth:
    10.2 mm +0.8 mm versus 3.1 A
  2. 2. 3.1 A

    Height:
    152.7 mm +27.2 mm versus A402
    Width:
    71.9 mm +7.9 mm versus A402
    Depth:
    9.4 mm

Weight

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

  1. 1. A402

    104 g

  2. 2. 3.1 A

    156 g

    +52 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. 3.1 A

    Screen diagonal:
    5.45 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    76.7 cm²

3.1 A has approximately 68.3% 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, 3.1 A, compared at the same storage capacity.
StorageA4023.1 A
32 GB Unknown 2 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. 3.1 A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. 3.1 A

    2990 mAh

    +990 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. 3.1 A

Everyday essentials
Everyday essentials — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Dimensions (HxWxD)
  • 125.5 Х 64 Х 10.2 mm
  • 152.7 Х 71.9 Х 9.4 mm
Weight
  • 104 g
  • 156 g
Technology Unknown
  • IPS LCD
Screen size
  • 4" inch
  • 5.45" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 128 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2990 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 9.0 (Pie)
Chipset
  • Spreadtrum 7715
  • Qualcomm SDM429 Snapdragon 429
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 76.7 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 56.7%
  • 69.8%
PPI /points per inch/
  • 233 PPI
  • 295 PPI
Camera and Video
Camera and Video — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • f/2.0
  • AF
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
  • f/2.2
Performance
Performance — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Processor CPU
  • 1.2 GHz
  • Quad-core 1.8 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Adreno 504
General specs
General specs — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Release date
  • 2015
  • June
  • 2019
  • June
Colors
  • White
  • Black
  • Blue
  • Silver
  • Black
Communication and Connectivity
Communication and Connectivity — specifications for A402, 3.1 A.
SpecificationA4023.1 A
SIM card
  • Dual SIM
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA (unspecified) -4G - LTE (unspecified)
Speed
  • Yes
  • 384 kbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
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
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.46 W/kg (head) 0.82 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A402, 3.1 A.
SpecificationA4023.1 A
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • gyro
  • proximity - Fast battery charging 10W - For AT&T