Celkon 2GB Xpress vs O2 XDA Serra

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

    2GB Xpress: 31 g lighter

    2GB Xpress:
    134 g
    XDA Serra:
    165 g
  • Width

    XDA Serra: 15.5 mm narrower

    2GB Xpress:
    66.5 mm
    XDA Serra:
    51 mm
  • Screen diagonal

    XDA Serra: 1.7 in smaller diagonal

    2GB Xpress:
    4.5 in
    XDA Serra:
    2.8 in
  • Chipset

    2GB Xpress:
    Spreadtrum 7731
    XDA Serra:
    Qualcomm MSM7201A
  • Depth

    2GB Xpress: 8 mm thinner

    2GB Xpress:
    10.1 mm
    XDA Serra:
    18.1 mm
  • Height

    XDA Serra: 31.5 mm shorter

    2GB Xpress:
    133.5 mm
    XDA Serra:
    102 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. 2GB Xpress

    Height:
    133.5 mm +31.5 mm versus XDA Serra
    Width:
    66.5 mm +15.5 mm versus XDA Serra
    Depth:
    10.1 mm
  2. 2. XDA Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +8 mm versus 2GB Xpress

Weight

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

  1. 1. 2GB Xpress

    134 g

  2. 2. XDA Serra

    165 g

    +31 g versus 2GB Xpress

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. 2GB Xpress

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    57.6 cm²
  2. 2. XDA Serra

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

2GB Xpress has approximately 137.4% more rectangular screen area than XDA Serra.

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 2GB Xpress, XDA Serra, compared at the same storage capacity.
Storage2GB XpressXDA Serra
16 GB 2 GB RAM Unknown
XDA Serra: Original memory entry

288 MB RAM · 512 MB ROM

Practical features

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

1. 2GB Xpress

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

2. XDA Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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. 2GB Xpress

    1500 mAh

    +160 mAh versus XDA Serra

  2. 2. XDA Serra

    1340 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. 2GB Xpress2. XDA Serra

Everyday essentials
Everyday essentials — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Dimensions (HxWxD)
  • 133.5 Х 66.5 Х 10.1 mm
  • 102 Х 51 Х 18.1 mm
Weight
  • 134 g
  • 165 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.5" inch
  • 2.8" inch
Screen resolution
  • 480 x 800 px
  • 480 x 640 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 288 MB RAM
  • 512 MB ROM
Memory card support
  • microSD
  • up to 32 GB
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1340 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 5.0 (Lollipop)
  • Microsoft Windows Mobile 6.1 Professional
Chipset
  • Spreadtrum 7731
  • Qualcomm MSM7201A
Headphone jack
  • Yes
  • No
Display
Display — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors Unknown
  • 65K
Screen area
  • 57.6 cm2
  • 24.3 cm2
Screen format
  • 5:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 64.9%
  • 46.7%
PPI /points per inch/
  • 207 PPI
  • 286 PPI
Camera and Video
Camera and Video — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 3.15 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 1.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 1.3 MP
  • VGA videocall camera
Performance
Performance — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Processor CPU
  • Quad-core 1.2 GHz
  • 528 MHz ARM 11
Graphics processor GPU
  • Mali-400
  • Adreno 130
General specs
General specs — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Release date
  • 2015
  • July
  • 2008
  • July
Colors
  • Black
  • Black
Battery life Unknown
  • Stand by time- Up to 406 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
SIM card
  • Dual SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
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
  • miniUSB
Bluetooth
  • 2.1
  • EDR
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Handwriting recognition
Other features
Other features — specifications for 2GB Xpress, XDA Serra.
Specification2GB XpressXDA Serra
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input