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  2. O2 XDA Comet vs ZTE U900

O2 XDA Comet vs ZTE U900

Compare recorded specifications, size and practical differences.

ZTE U900

ZTE U900

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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.

      • Screen diagonalXDA Comet: 0.8 in smaller diagonalXDA Comet: 2.7 in · U900: 3.5 in
      • Release year2007 / 2011XDA Comet: 2007 · U900: 2011

      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.

      Front
      XDA Comet: 106 × 58 mm 1
      Side
      XDA Comet: 106 × 19 mm 1
      1. 1. XDA Comet
        Height
        106 mm
        Width
        58 mm
        Depth
        19 mm
        Weight
        145 g
      2. 2. U900
        Height
        Unknown
        Width
        Unknown
        Depth
        Unknown
        Weight
        Unknown

        Unavailable dimensions are omitted from the drawing.

      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.

      Screen size
      XDA Comet: 2.7 in, 4:3, About 22.6 cm² rectangular area 1 U900: 3.5 in, 5:3, About 34.9 cm² rectangular area 2
      1. 1. XDA Comet 2.7 in · 4:3 About 22.6 cm² rectangular area
      2. 2. U900 3.5 in · 5:3 About 34.9 cm² rectangular area

      U900 has approximately 54.4% 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.

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

      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. XDA Comet

      NFC
      Unknown
      Headphone jack
      No
      Memory card support
      See details miniSD

      2. U900

      NFC
      Unknown
      Headphone jack
      Yes
      Memory card support
      See details microSD (dedicated slot)

      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. XDA Comet2. U900

      Everyday essentials
      Everyday essentials
      SpecificationXDA CometU900
      Dimensions (HxWxD)
      • 106 Х 58 Х 19 mm
      • Х Х mm
      Weight
      • 145 g
      • 0 g
      Technology
      • TFT
      • TFT
      Screen size
      • 2.7" inch
      • 3.5" inch
      Screen resolution
      • 240 x 320 px
      • 480 x 800 px
      Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
      • 64 MB RAM
      • 1 GB ROM
      		 Unknown
      Memory card support
      • miniSD
      • microSD (dedicated slot)
      BatteryCapacity is not battery life. No endurance test is implied.
      • 0 mAh,
      • 0 mAh,
      Operating system OS
      • Microsoft Windows Mobile 6.0 Professional
      • Android-based OPhone 2.0
      Headphone jack
      • No
      • Yes
      Display
      Display
      SpecificationXDA CometU900
      Touchscreen
      • resistive touchscreen
      • capacitive touchscreen
      Display colors
      • 65K
      • 256K
      Screen area
      • 22.6 cm2
      • 34.9 cm2
      Screen format
      • 4:3 (height:width)
      • 5:3 (height:width)
      Screen to body ratio
      • 36.7%
      		 Unknown
      PPI /points per inch/
      • 148 PPI
      • 267 PPI
      Camera and Video
      Camera and Video
      SpecificationXDA CometU900
      Rear camera, main
      • 2 MP
      • Single
      • 3.15 MP
      • Single
      Camera specs
      • 2 MP
      • 3.15 MP
      • AF
      Functions
      • LED flash
      		 Unknown
      Video
      • Yes
      • Yes
      Front camera, selfie
      • 0.3 MP
      • Single
      • 0.3 MP
      • Single
      Specifications
      • VGA videocall camera
      • VGA
      Performance
      Performance
      SpecificationXDA CometU900
      Processor CPU
      • Intel XScale PXA 270 620 MHz
      		 Unknown
      General specs
      General specs
      SpecificationXDA CometU900
      Release date
      • 2007
      • September
      • 2011
      • February
      Colors
      • Silver
      • White
      Battery life
      • Stand by time- Up to 200 h Talking time- Up to 6 h
      		 Unknown
      Communication and Connectivity
      Communication and Connectivity
      SpecificationXDA CometU900
      SIM card
      • Mini-SIM
      • Mini-SIM
      Network
      • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
      • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
      Speed
      • HSPA
      • HSPA
      GPRS
      • Class 10
      • Yes
      Edge
      • Yes
      • Yes
      Wi-Fi
      • Wi-Fi 802.11b/g
      • Wi-Fi 802.11 b/g
      GPS
      • No
      • Yes
      • with A-GPS
      USB
      • miniUSB
      • microUSB 2.0
      Bluetooth
      • 1.2
      • 2.1
      • A2DP
      Music and Audio
      Music and Audio
      SpecificationXDA CometU900
      Radio
      • Stereo FM radio
      • RDS
      		 Unknown
      Others
      • Handwriting recognition
      		 Unknown
      Other features
      Other features
      SpecificationXDA CometU900
      Dop
      • Infrared port - Pocket Office -Voice memo -MP3/AAC player
      • Sensors Accelerometer
      • proximity
      • compass - CMMB Mobile TV -MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input

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