Acer Liquid X2 vs O2 XDA Comet

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

    XDA Comet: 21 g lighter

    Liquid X2:
    166 g
    XDA Comet:
    145 g
  • Width

    XDA Comet: 20.8 mm narrower

    Liquid X2:
    78.8 mm
    XDA Comet:
    58 mm
  • Screen diagonal

    XDA Comet: 2.8 in smaller diagonal

    Liquid X2:
    5.5 in
    XDA Comet:
    2.7 in
  • Depth

    Liquid X2: 10.5 mm thinner

    Liquid X2:
    8.5 mm
    XDA Comet:
    19 mm
  • Height

    XDA Comet: 47.3 mm shorter

    Liquid X2:
    153.3 mm
    XDA Comet:
    106 mm
  • Release year

    Liquid X2:
    2015
    XDA Comet:
    2007

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. Liquid X2

    Height:
    153.3 mm +47.3 mm versus XDA Comet
    Width:
    78.8 mm +20.8 mm versus XDA Comet
    Depth:
    8.5 mm
  2. 2. XDA Comet

    Height:
    106 mm
    Width:
    58 mm
    Depth:
    19 mm +10.5 mm versus Liquid X2

Weight

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

  1. 1. Liquid X2

    166 g

    +21 g versus XDA Comet

  2. 2. XDA Comet

    145 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. Liquid X2

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. XDA Comet

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

Liquid X2 has approximately 269.4% more rectangular screen area than XDA Comet.

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 Liquid X2, XDA Comet, compared at the same storage capacity.
StorageLiquid X2XDA Comet
32 GB 3 GB RAM Unknown
XDA Comet: Original memory entry

64 MB RAM · 1 GB 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. Liquid X2

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. XDA Comet

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Liquid X22. XDA Comet

Everyday essentials
Everyday essentials — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Dimensions (HxWxD)
  • 153.3 Х 78.8 Х 8.5 mm
  • 106 Х 58 Х 19 mm
Weight
  • 166 g
  • 145 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 2.7" inch
Screen resolution
  • 720 x 1280 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 64 MB RAM
  • 1 GB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • miniSD
Battery Capacity is not battery life. No endurance test is implied.
  • 4020 mAh
  • Removable Li-Po
  • 0 mAh,
Operating system OS
  • Android 5.1 (Lollipop)
  • Microsoft Windows Mobile 6.0 Professional
Chipset
  • Mediatek MT6753 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 83.4 cm2
  • 22.6 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 69.0%
  • 36.7%
PPI /points per inch/
  • 267 PPI
  • 148 PPI
Camera and Video
Camera and Video — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Rear camera, main
  • 13 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • f/1.8
  • 2 MP
Functions
  • Dual-LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 13 MP
  • f/1.8
  • AF
  • VGA videocall camera
Performance
Performance — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Intel XScale PXA 270 620 MHz
Graphics processor GPU
  • Mali-T720MP4
Unknown
General specs
General specs — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Release date
  • 2015
  • April
  • 2007
  • September
Colors
  • Black
  • Gold
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 EUR
Unknown
Battery life
  • Stand by time- Up to 820 h (3G) Talking time- Up to 23 h (3G)
  • Stand by time- Up to 200 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
SIM card
  • Triple SIM (Micro-SIM)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900-3G - HSDPA 900 / 1900 / 2100 - Europe
  • Taiwan HSDPA 850 / 1700(AWS) / 1900 - PA-4G - LTE 800 / 1800 / 2100 / 2600 - Europe LTE 700 / 900 / 1800 - Taiwan
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • miniUSB
Bluetooth
  • 4.0
  • A2DP
  • Super AMOLED
  • 1.2
Music and Audio
Music and Audio — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others
  • 24-bit/192kHz audio -DTS HD sound -Active noise cancellation with dedicated mic
  • Handwriting recognition
Other features
Other features — specifications for Liquid X2, XDA Comet.
SpecificationLiquid X2XDA Comet
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player