O2 XDA Serra vs ZTE Open II

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.

  • Width

    XDA Serra: 10 mm narrower

    XDA Serra:
    51 mm
    Open II:
    61 mm
  • Screen diagonal

    XDA Serra: 0.7 in smaller diagonal

    XDA Serra:
    2.8 in
    Open II:
    3.5 in
  • Chipset

    XDA Serra:
    Qualcomm MSM7201A
    Open II:
    Qualcomm MSM8210 Snapdragon 200 (28 nm)
  • Depth

    Open II: 7.6 mm thinner

    XDA Serra:
    18.1 mm
    Open II:
    10.5 mm
  • Height

    XDA Serra: 16 mm shorter

    XDA Serra:
    102 mm
    Open II:
    118 mm
  • Release year

    XDA Serra:
    2008
    Open II:
    2014

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. XDA Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +7.6 mm versus Open II
    Weight:
    165 g
  2. 2. Open II

    Height:
    118 mm +16 mm versus XDA Serra
    Width:
    61 mm +10 mm versus XDA Serra
    Depth:
    10.5 mm
    Weight:
    Unknown

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. XDA Serra

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

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

Open II has approximately 50.2% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

XDA Serra: Original memory entry

288 MB RAM · 512 MB ROM

Open II: Original memory entry

2 GB · 256 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. XDA Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. Open II

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. XDA Serra

    1340 mAh

    +190 mAh versus Open II

  2. 2. Open II

    1150 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. XDA Serra2. Open II

Everyday essentials
Everyday essentials — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Dimensions (HxWxD)
  • 102 Х 51 Х 18.1 mm
  • 118 Х 61 Х 10.5 mm
Weight
  • 165 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 480 x 640 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 288 MB RAM
  • 512 MB ROM
  • 2 GB
  • 256 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1340 mAh
  • Removable Li-Ion
  • 1150 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Firefox OS 1.3
Chipset
  • Qualcomm MSM7201A
  • Qualcomm MSM8210 Snapdragon 200 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 24.3 cm2
  • 36.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 46.7%
  • 50.7%
PPI /points per inch/
  • 286 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance

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

Performance — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Processor CPU
  • 528 MHz ARM 11
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 130
  • Adreno 302
Antutu 7 score * Unknown
  • 12396
General specs
General specs — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Release date
  • 2008
  • July
  • 2014
  • February
Colors
  • Black
  • Black
Battery life
  • Stand by time- Up to 406 h Talking time- Up to 8 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
SIM card
  • Mini-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
Unknown
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 2.1
Music and Audio
Music and Audio — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Serra, Open II.
SpecificationXDA SerraOpen II
Dop
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input
  • Sensors Accelerometer MP3/AAC+/WAV player -MP4/H.264 player -Photo viewer -Predictive text input