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Eten M550 vs Palm Centro

Compare recorded specifications, size and practical differences.

Eten M550

Eten M550

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Palm Centro

Palm Centro

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Remove Centro
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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: 41 g lighter

    M550:
    165 g
    Centro:
    124 g
  • Width

    Centro: 7.5 mm narrower

    M550:
    61 mm
    Centro:
    53.5 mm
  • Screen diagonal

    Centro: 0.55 in smaller diagonal

    M550:
    2.8 in
    Centro:
    2.25 in
  • Depth

    Centro: 3.4 mm thinner

    M550:
    22 mm
    Centro:
    18.6 mm
  • Height

    Centro: 4.8 mm shorter

    M550:
    112 mm
    Centro:
    107.2 mm
  • Release year

    M550:
    2006
    Centro:
    2008

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
Front — relative 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. M550: height 112 mm; Width 61 mm. Centro: height 107.2 mm; Width 53.5 mm. M550: 112 × 61 mm 1 Centro: 107.2 × 53.5 mm 2
Side
Side — relative 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. M550: height 112 mm; Depth 22 mm. Centro: height 107.2 mm; Depth 18.6 mm. M550: 112 × 22 mm 1 Centro: 107.2 × 18.6 mm 2
  1. 1. M550

    Height:
    112 mm +4.8 mm versus Centro
    Width:
    61 mm +7.5 mm versus Centro
    Depth:
    22 mm +3.4 mm versus Centro
    Weight:
    165 g
  2. 2. Centro

    Height:
    107.2 mm
    Width:
    53.5 mm
    Depth:
    18.6 mm
    Weight:
    124 g

Weight

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

  1. 1. M550

    165 g

    +41 g versus Centro

  2. 2. Centro

    124 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.

Screen size
Relative rectangular screen sizes; numbers match the phone labels below 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. M550: screen diagonal 2.8 in; aspect ratio (height:width) 4:3; approximate rectangular area 24.3 cm². Centro: screen diagonal 2.25 in; aspect ratio (height:width) 1:1; approximate rectangular area 16.3 cm². M550: 2.8 in, 4:3, About 24.3 cm² rectangular area 1 Centro: 2.25 in, 1:1, About 16.3 cm² rectangular area 2
  1. 1. M550

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Centro

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

M550 has approximately 48.7% 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.

M550: Original memory entry

64 MB RAM · 128 MB ROM

Centro: Original memory entry

64 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. M550

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

2. Centro

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

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. M550

    1440 mAh

    +290 mAh versus Centro

  2. 2. Centro

    1150 mAh

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. M5502. Centro

Everyday essentials
Everyday essentials — specifications for M550, Centro.
SpecificationM550Centro
Dimensions (HxWxD)
  • 112 Х 61 Х 22 mm
  • 107.2 Х 53.5 Х 18.6 mm
Weight
  • 165 g
  • 124 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 2.25" inch
Screen resolution
  • 240 x 320 px
  • 320 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 64 MB
Memory card support
  • SD/SDIO
  • microSD
  • up to 4 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1440 mAh
  • Removable Li-Ion
  • 1150 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Palm OS 5.4.9
Headphone jack
  • No
  • No
Display
Display — specifications for M550, Centro.
SpecificationM550Centro
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 24.3 cm2
  • 16.3 cm2
Screen format
  • 4:3 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 35.5%
  • 28.5%
PPI /points per inch/
  • 143 PPI
  • 201 PPI
Camera and Video
Camera and Video — specifications for M550, Centro.
SpecificationM550Centro
Rear camera, main
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 1.3 MP
  • 1.3 MP
Functions
  • LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for M550, Centro.
SpecificationM550Centro
Processor CPU
  • Samsung 2440 400 MHz
  • 32-bit Intel XScale PXA270 312 MHz
General specs
General specs — specifications for M550, Centro.
SpecificationM550Centro
Release date
  • 2006
  • April
  • 2008
  • February
Colors
  • White
  • Obsidian
  • Glacier
  • Midnight
  • Cobalt
  • Onyx
  • Electric Blue
  • Rose
  • Olive
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 220 EUR
  • 70 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h
  • Stand by time- Up to 300 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for M550, Centro.
SpecificationM550Centro
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • Class 10
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB
  • Proprietary
  • Proprietary
Bluetooth
  • 1.2
  • 1.2
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.27 W/kg (head) 0.22 W/kg (body)
Music and Audio
Music and Audio — specifications for M550, Centro.
SpecificationM550Centro
Radio
  • No
  • No
Others
  • Handwriting recognition
  • 5-way navigation button
Other features
Other features — specifications for M550, Centro.
SpecificationM550Centro
Dop
  • Pocket Office -eBook reader -Windows MPlayer 10 -Organizer -Voice memo
  • Infrared port - Document editor (Word
  • Excel
  • PowerPoint
  • PDF) -MP3 player -Organizer -Voice memo