Celkon A403 vs Lenovo K7

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.

  • Screen diagonal

    A403: 2.09 in smaller diagonal

    A403:
    4 in
    K7:
    6.09 in
  • Chipset

    A403:
    Spreadtrum SC7715
    K7:
    Unisoc SC9863A (28nm)
  • Rear camera layout

    A403:
    Single
    K7:
    Triple
  • Release year

    A403:
    2015
    K7:
    2020

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. A403

    Height:
    125 mm
    Width:
    65 mm
    Depth:
    10.2 mm
    Weight:
    113 g
  2. 2. K7

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

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. A403

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. K7

    Screen diagonal:
    6.09 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    92.6 cm²

K7 has approximately 103.3% more rectangular screen area than A403.

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.

A403: 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. A403

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

2. K7

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (uses shared SIM slot)

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. A403

    1400 mAh

  2. 2. K7

    4000 mAh

    +2600 mAh versus A403

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. A4032. K7

Everyday essentials
Everyday essentials — specifications for A403, K7.
SpecificationA403K7
Dimensions (HxWxD)
  • 125 Х 65 Х 10.2 mm
  • Х Х mm
Weight
  • 113 g
  • 0 g
Technology Unknown
  • IPS LCD
Screen size
  • 4" inch
  • 6.09" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
Unknown
Memory card support
  • microSD
  • up to 32 GB
  • microSDXC (uses shared SIM slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 10.0
Chipset
  • Spreadtrum SC7715
  • Unisoc SC9863A (28nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A403, K7.
SpecificationA403K7
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 92.6 cm2
Screen format
  • 5:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 56.1%
Unknown
PPI /points per inch/
  • 233 PPI
  • 276 PPI
Camera and Video
Camera and Video — specifications for A403, K7.
SpecificationA403K7
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Triple
Camera specs
  • 3.15 MP
  • 13 MP
  • (wide)
  • PDAF -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
Performance
Performance — specifications for A403, K7.
SpecificationA403K7
Processor CPU
  • 1.0 GHz
  • Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
Graphics processor GPU Unknown
  • IMG8322
General specs
General specs — specifications for A403, K7.
SpecificationA403K7
Release date
  • 2015
  • August
  • 2020
  • April 13
Colors
  • Black
  • Light Blue
  • Red
  • Yellow
  • Blue
  • Black
Communication and Connectivity
Communication and Connectivity — specifications for A403, K7.
SpecificationA403K7
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • Yes
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.68 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A403, K7.
SpecificationA403K7
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A403, K7.
SpecificationA403K7
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - Preliminary specifications