Celkon A9 Dual vs Philips D833

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    A9 Dual: 47 g lighter

    A9 Dual:
    116 g
    D833:
    163 g
  • Width

    A9 Dual: 3.4 mm narrower

    A9 Dual:
    63.9 mm
    D833:
    67.3 mm
  • Screen diagonal

    A9 Dual: 0.8 in smaller diagonal

    A9 Dual:
    3.5 in
    D833:
    4.3 in
  • Depth

    A9 Dual: 1.5 mm thinner

    A9 Dual:
    10.6 mm
    D833:
    12.1 mm
  • Height

    A9 Dual: 7.5 mm shorter

    A9 Dual:
    120.5 mm
    D833:
    128 mm
  • Release year

    A9 Dual:
    2014
    D833:
    2013

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. A9 Dual

    Height:
    120.5 mm
    Width:
    63.9 mm
    Depth:
    10.6 mm
  2. 2. D833

    Height:
    128 mm +7.5 mm versus A9 Dual
    Width:
    67.3 mm +3.4 mm versus A9 Dual
    Depth:
    12.1 mm +1.5 mm versus A9 Dual

Weight

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

  1. 1. A9 Dual

    116 g

  2. 2. D833

    163 g

    +47 g versus A9 Dual

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. A9 Dual

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. D833

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

D833 has approximately 44.3% more rectangular screen area than A9 Dual.

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.

A9 Dual: Original memory entry

512 MB · 256 MB RAM

D833: Original memory entry

4 GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A9 Dual

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

2. D833

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated 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. A9 Dual

    1350 mAh

  2. 2. D833

    2400 mAh

    +1050 mAh versus A9 Dual

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. A9 Dual2. D833

Everyday essentials
Everyday essentials — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Dimensions (HxWxD)
  • 120.5 Х 63.9 Х 10.6 mm
  • 128 Х 67.3 Х 12.1 mm
Weight
  • 116 g
  • 163 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 4.3" inch
Screen resolution
  • 320 x 480 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 4 GB
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Li-Ion
  • 2400 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 4.0 (Ice Cream Sandwich)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 52.6 cm2
Screen format
  • 3:2 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 47.4%
  • 61.1%
PPI /points per inch/
  • 165 PPI
  • 217 PPI
Camera and Video
Camera and Video — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Rear camera, main
  • 2 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 2 MP
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 480p
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Processor CPU
  • Dual-core 1.0 GHz
  • Dual-core 1.0 GHz
General specs
General specs — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Release date
  • 2014
  • 2013
  • October
Colors
  • White
  • Black
  • Black/Gray
Battery life
  • Stand by time- Up to 240 h Talking time- Up to 3 h 20 min
  • Stand by time- Up to 300 h Talking time- Up to 17 h
Communication and Connectivity
Communication and Connectivity — specifications for A9 Dual, D833.
SpecificationA9 DualD833
SIM card
  • Dual SIM
  • Dual SIM (dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900
Speed Unknown
  • EV-DO Rev.A 3.1 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • 3.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.61 W/kg (head) 0.69 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Radio
  • FM radio
  • No
Other features
Other features — specifications for A9 Dual, D833.
SpecificationA9 DualD833
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity