Palm Centro vs Siemens SX66

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

    Centro: 86 g lighter

    Centro:
    124 g
    SX66:
    210 g
  • Width

    Centro: 17.5 mm narrower

    Centro:
    53.5 mm
    SX66:
    71 mm
  • Screen diagonal

    Centro: 1.25 in smaller diagonal

    Centro:
    2.25 in
    SX66:
    3.5 in
  • Depth

    SX66: 0.6 mm thinner

    Centro:
    18.6 mm
    SX66:
    18 mm
  • Height

    Centro: 17.8 mm shorter

    Centro:
    107.2 mm
    SX66:
    125 mm
  • Release year

    Centro:
    2008
    SX66:
    2004

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. Centro

    Height:
    107.2 mm
    Width:
    53.5 mm
    Depth:
    18.6 mm +0.6 mm versus SX66
  2. 2. SX66

    Height:
    125 mm +17.8 mm versus Centro
    Width:
    71 mm +17.5 mm versus Centro
    Depth:
    18 mm

Weight

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

  1. 1. Centro

    124 g

  2. 2. SX66

    210 g

    +86 g versus Centro

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. Centro

    Screen diagonal:
    2.25 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    16.3 cm²
  2. 2. SX66

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

SX66 has approximately 132.3% more rectangular screen area than Centro.

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.

Centro: Original memory entry

64 MB

SX66: Original memory entry

128 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. Centro

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 4 GB (dedicated slot)

2. SX66

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SDIO/MMC

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. Centro2. SX66

Everyday essentials
Everyday essentials — specifications for Centro, SX66.
SpecificationCentroSX66
Dimensions (HxWxD)
  • 107.2 Х 53.5 Х 18.6 mm
  • 125 Х 71 Х 18 mm
Weight
  • 124 g
  • 210 g
Technology
  • TFT
  • TFT
Screen size
  • 2.25" inch
  • 3.5" inch
Screen resolution
  • 320 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.
  • 64 MB
  • 128 MB RAM
Memory card support
  • microSD
  • up to 4 GB (dedicated slot)
  • SDIO/MMC
Battery Capacity is not battery life. No endurance test is implied.
  • 1150 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Palm OS 5.4.9
  • Microsoft Windows Mobile 2003 SE PocketPC
Headphone jack
  • No
  • No
Display
Display — specifications for Centro, SX66.
SpecificationCentroSX66
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 16.3 cm2
  • 37.9 cm2
Screen format
  • 1:1 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 28.5%
  • 42.7%
PPI /points per inch/
  • 201 PPI
  • 114 PPI
Camera and Video
Camera and Video — specifications for Centro, SX66.
SpecificationCentroSX66
Rear camera, main
  • 1.3 MP
  • Single
  • 0 MP,
Camera specs
  • 1.3 MP
Unknown
Video
  • Yes
Unknown
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Centro, SX66.
SpecificationCentroSX66
Processor CPU
  • 32-bit Intel XScale PXA270 312 MHz
  • Intel Xscale PXA272 520 MHz
General specs
General specs — specifications for Centro, SX66.
SpecificationCentroSX66
Release date
  • 2008
  • February
  • 2004
  • Q4
Colors
  • Obsidian
  • Glacier
  • Midnight
  • Cobalt
  • Onyx
  • Electric Blue
  • Rose
  • Olive
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 4 h
  • Stand by time- Up to 200 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for Centro, SX66.
SpecificationCentroSX66
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • No
Wi-Fi
  • No
  • Wi-Fi 802.11b
GPS
  • No
  • No
USB
  • Proprietary
  • Proprietary
Bluetooth
  • 1.2
  • A2DP
  • Yes
Harmful irradiation
  • SAR - 0.27 W/kg (head) 0.22 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Centro, SX66.
SpecificationCentroSX66
Radio
  • No
  • No
Others
  • 5-way navigation button
  • Downloadable logos
Other features
Other features — specifications for Centro, SX66.
SpecificationCentroSX66
Dop
  • Infrared port - Document editor (Word
  • Excel
  • PowerPoint
  • PDF) -MP3 player -Organizer -Voice memo
  • Infrared port - Microsoft ActiveSync -MP3/AAC player -Predictive text input