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Archos Diamond Alpha vs Celkon A403

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

    A403: 42 g lighter

    Diamond Alpha:
    155 g
    A403:
    113 g
  • Width

    A403: 7.5 mm narrower

    Diamond Alpha:
    72.5 mm
    A403:
    65 mm
  • Screen diagonal

    A403: 1.2 in smaller diagonal

    Diamond Alpha:
    5.2 in
    A403:
    4 in
  • Chipset

    Diamond Alpha:
    Qualcomm MSM8976 Snapdragon 652 (28 nm)
    A403:
    Spreadtrum SC7715
  • Depth

    Diamond Alpha: 2.7 mm thinner

    Diamond Alpha:
    7.5 mm
    A403:
    10.2 mm
  • Height

    A403: 21.7 mm shorter

    Diamond Alpha:
    146.7 mm
    A403:
    125 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. Diamond Alpha

    Height:
    146.7 mm +21.7 mm versus A403
    Width:
    72.5 mm +7.5 mm versus A403
    Depth:
    7.5 mm
  2. 2. A403

    Height:
    125 mm
    Width:
    65 mm
    Depth:
    10.2 mm +2.7 mm versus Diamond Alpha

Weight

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

  1. 1. Diamond Alpha

    155 g

    +42 g versus A403

  2. 2. A403

    113 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. Diamond Alpha

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. A403

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

Diamond Alpha has approximately 63.7% 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.

Diamond Alpha: Original memory entry

up to 64 GB (dedicated slot) · 512GB 4GB

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. Diamond Alpha

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. A403

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. Diamond Alpha

    2950 mAh

    +1550 mAh versus A403

  2. 2. A403

    1400 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. Diamond Alpha2. A403

Everyday essentials
Everyday essentials — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Dimensions (HxWxD)
  • 146.7 Х 72.5 Х 7.5 mm
  • 125 Х 65 Х 10.2 mm
Weight
  • 155 g
  • 113 g
Technology
  • IPS LCD
Unknown
Screen size
  • 5.2" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • up to 64 GB (dedicated slot)
  • 512GB 4GB
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2950 mAh
  • Non-removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8976 Snapdragon 652 (28 nm)
  • Spreadtrum SC7715
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 74.5 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 70.1%
  • 56.1%
PPI /points per inch/
  • 424 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Rear camera, main
  • 13 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 13 MP
  • 1/2.9''
  • 1.25µm
  • PDAF -13 MP B/W
  • 3.15 MP
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 16 MP
  • f/2.2
  • 1.3 MP
Performance

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

Performance — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Processor CPU
  • Octa-core (4x1.8 GHz Cortex-A72 & 4x1.4 GHz Cortex-A53)
  • 1.0 GHz
Graphics processor GPU
  • Adreno 510
Unknown
Antutu 7 score *
  • 73625
Unknown
General specs
General specs — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Release date
  • 2017
  • June
  • 2015
  • August
Colors
  • Black
  • Black
  • Light Blue
  • Red
  • Yellow
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
Unknown
Battery life
  • Stand by time- Up to 320 h (3G) Talking time- Up to 11 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
SIM card
  • Hybrid Dual SIM (Nano-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 band 1(2100)
  • 3(1800)
  • 7(2600)
  • 20(800)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • A-GPS
USB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • Android 4.4.2 (KitKat)
  • A2DP
  • Super AMOLED
  • 2.0
Harmful irradiation
  • SAR EU - 1.02 W/kg (head) 0.76 W/kg (body)
  • SAR EU - 0.38 W/kg (head) 0.68 W/kg (body)
Music and Audio
Music and Audio — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Radio
  • panorama
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Diamond Alpha, A403.
SpecificationDiamond AlphaA403
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For Europe
  • Sensors Accelerometer