Motorola RIZR Z8 vs O2 XDA Star

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

    RIZR Z8: 8 g lighter

    RIZR Z8:
    112 g
    XDA Star:
    120 g
  • Width

    RIZR Z8: 5 mm narrower

    RIZR Z8:
    50 mm
    XDA Star:
    55 mm
  • Screen diagonal

    RIZR Z8: 0.4 in smaller diagonal

    RIZR Z8:
    2.2 in
    XDA Star:
    2.6 in
  • Chipset

    RIZR Z8:
    TI OMAP 2420
    XDA Star:
    Qualcomm MSM7200
  • Depth

    RIZR Z8: 0.8 mm thinner

    RIZR Z8:
    15 mm
    XDA Star:
    15.8 mm
  • Height

    XDA Star: 2 mm shorter

    RIZR Z8:
    109 mm
    XDA Star:
    107 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. RIZR Z8

    Height:
    109 mm +2 mm versus XDA Star
    Width:
    50 mm
    Depth:
    15 mm
  2. 2. XDA Star

    Height:
    107 mm
    Width:
    55 mm +5 mm versus RIZR Z8
    Depth:
    15.8 mm +0.8 mm versus RIZR Z8

Weight

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

  1. 1. RIZR Z8

    112 g

  2. 2. XDA Star

    120 g

    +8 g versus RIZR Z8

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. RIZR Z8

    Screen diagonal:
    2.2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    15 cm²
  2. 2. XDA Star

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

XDA Star has approximately 39.7% more rectangular screen area than RIZR Z8.

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.

RIZR Z8: Original memory entry

77 MB

XDA Star: Original memory entry

96 MB RAM · 128 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. RIZR Z8

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

2. XDA Star

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

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. RIZR Z8

    1030 mAh

  2. 2. XDA Star

    1120 mAh

    +90 mAh versus RIZR Z8

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. RIZR Z82. XDA Star

Everyday essentials
Everyday essentials — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Dimensions (HxWxD)
  • 109 Х 50 Х 15 mm
  • 107 Х 55 Х 15.8 mm
Weight
  • 112 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 2.2" inch
  • 2.6" inch
Screen resolution
  • 240 x 320 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 77 MB
  • 96 MB RAM
  • 128 MB ROM
Memory card support
  • microSD (dedicated slot)
  • microSD
Battery Capacity is not battery life. No endurance test is implied.
  • 1030 mAh
  • Removable Li-Ion
  • 1120 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian 9.2
  • UIQ 3.1
  • Microsoft Windows Mobile 6.0 Professional
Chipset
  • TI OMAP 2420
  • Qualcomm MSM7200
Headphone jack
  • No
  • No
Display
Display — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Touchscreen Unknown
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 15.0 cm2
  • 20.9 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 27.5%
  • 35.6%
PPI /points per inch/
  • 182 PPI
  • 154 PPI
Camera and Video
Camera and Video — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 320p
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA videocall camera
  • CIF videocall camera
Performance
Performance — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Processor CPU
  • 300 MHz ARM 1136
  • 400 MHz ARM 11
Graphics processor GPU
  • PowerVR MBX
  • Adreno 130
General specs
General specs — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Release date
  • 2007
  • February
  • 2007
  • October
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 110 EUR
Unknown
Battery life
  • Stand by time- Up to 380 h Talking time- Up to 5 h
  • Stand by time- Up to 250 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Yes
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB
  • miniUSB 2.0
  • miniUSB
Bluetooth
  • 2.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR - 0.91 W/kg (head) 0.58 W/kg (body) SAR EU - 1.13 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Radio
  • No
  • No
Others
  • Screensavers and wallpapers -Downloadable logos
  • TouchFLO finger swipe navigation -Handwriting recognition
Other features
Other features — specifications for RIZR Z8, XDA Star.
SpecificationRIZR Z8XDA Star
Dop
  • MP3/AAC/AAC+ player -Predictive text input -Organizer -Voice memo
  • Pocket Office -Voice memo -MP3/AAC player HTC Nike platform