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  2. Nokia N91 vs O2 XDA Comet

Nokia N91 vs O2 XDA Comet

Compare recorded specifications, size and practical differences.

Nokia N91

Nokia N91

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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.

      • WeightXDA Comet: 19 g lighterXDA Comet: 145 g · N91: 164 g
      • WidthN91: 2.8 mm narrowerN91: 55.2 mm · XDA Comet: 58 mm
      • Screen diagonalN91: 0.6 in smaller diagonalN91: 2.1 in · XDA Comet: 2.7 in
      • DepthXDA Comet: 3 mm thinnerXDA Comet: 19 mm · N91: 22 mm
      • HeightXDA Comet: 7.1 mm shorterXDA Comet: 106 mm · N91: 113.1 mm
      • Release year2005 / 2007N91: 2005 · 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.

      Front
      N91: 113.1 × 55.2 mm 1 XDA Comet: 106 × 58 mm 2
      Side
      N91: 113.1 × 22 mm 1 XDA Comet: 106 × 19 mm 2
      1. 1. N91
        Height
        113.1 mm+7.1 mm versus XDA Comet
        Width
        55.2 mm
        Depth
        22 mm+3 mm versus XDA Comet
        Weight
        164 g
      2. 2. XDA Comet
        Height
        106 mm
        Width
        58 mm+2.8 mm versus N91
        Depth
        19 mm
        Weight
        145 g
      Weight

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

      1. 1. N91164 g

        +19 g versus XDA Comet

      2. 2. XDA Comet145 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.

      At least two phones need compatible screen dimensions for a drawing.

      1. 1. N91 Screen geometry unavailable or conflicting
      2. 2. XDA Comet 2.7 in · 4:3 About 22.6 cm² rectangular area

      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.

      N91: Original memory entry

      4/8 GB · 64 MB RAM

      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. N91

      NFC
      Unknown
      Headphone jack
      Yes
      Memory card support
      No

      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. N912. XDA Comet

      Everyday essentials
      Everyday essentials
      SpecificationN91XDA Comet
      Dimensions (HxWxD)
      • 113.1 Х 55.2 Х 22 mm
      • 106 Х 58 Х 19 mm
      Weight
      • 164 g
      • 145 g
      Technology
      • TFT
      • TFT
      Screen size
      • 2.1" inch
      • 2.7" inch
      Screen resolution
      • 176 x 208 px
      • 240 x 320 px
      Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
      • 4/8 GB
      • 64 MB RAM
      • 64 MB RAM
      • 1 GB ROM
      Memory card support
      • No
      • miniSD
      BatteryCapacity is not battery life. No endurance test is implied.
      • 900 mAh
      • Removable Li-Ion
      • 0 mAh,
      Operating system OS
      • Symbian 9.1
      • Series 60 UI 3rd Edition
      • Microsoft Windows Mobile 6.0 Professional
      Headphone jack
      • Yes
      • No
      Display
      Display
      SpecificationN91XDA Comet
      Touchscreen Unknown
      • resistive touchscreen
      Display colors
      • 256K
      • 65K
      Screen area
      • 14.0 cm2
      • 22.6 cm2
      Screen format Unknown
      • 4:3 (height:width)
      Screen to body ratio
      • 22.5%
      • 36.7%
      PPI /points per inch/
      • 0 PPI
      • 148 PPI
      Camera and Video
      Camera and Video
      SpecificationN91XDA Comet
      Rear camera, main
      • 2 MP
      • Single
      • 2 MP
      • Single
      Camera specs
      • 2 MP
      • 2 MP
      Functions Unknown
      • LED flash
      Video
      • Yes
      • Yes
      Front camera, selfie
      • 0 MP,
      • 0.3 MP
      • Single
      Specifications Unknown
      • VGA videocall camera
      Performance
      Performance
      SpecificationN91XDA Comet
      Processor CPU
      • 220 MHz Dual ARM 9
      • Intel XScale PXA 270 620 MHz
      General specs
      General specs
      SpecificationN91XDA Comet
      Release date
      • 2005
      • Q2
      • 2007
      • September
      Colors
      • Light Blue Chrome
      • Dark Gray Chrome
      • Black (Music Edition)
      • Silver
      Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
      • 230 EUR
      		 Unknown
      Battery life
      • Stand by time- Up to 190 h (2G) / 170 h (3G) Talking time- Up to 4 h (2G) / 3 h (3G) Music play - Up to 10 h
      • Stand by time- Up to 200 h Talking time- Up to 6 h
      Communication and Connectivity
      Communication and Connectivity
      SpecificationN91XDA Comet
      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
      • Yes
      • 384 kbps
      • HSPA
      GPRS
      • Class 10
      • Class 10
      Edge
      • Class 10
      • Yes
      Wi-Fi
      • Wi-Fi 802.11b/g
      • Wi-Fi 802.11b/g
      GPS
      • No
      • No
      USB
      • miniUSB 2.0
      • miniUSB
      Bluetooth
      • 1.2 (A2DP - 8 GB version only)
      • 1.2
      Harmful irradiation
      • SAR - 0.74 W/kg (head) 0.58 W/kg (body) SAR EU - 0.48 W/kg (head)
      		 Unknown
      Music and Audio
      Music and Audio
      SpecificationN91XDA Comet
      Radio
      • Stereo FM radio
      • Stereo FM radio
      • RDS
      Others
      • 5-way configurable navigation key
      • Handwriting recognition
      Other features
      Other features
      SpecificationN91XDA Comet
      Dop
      • Predictive text input -Voice dial -Voice memo -Organizer
      • Infrared port - Pocket Office -Voice memo -MP3/AAC player

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