Siemens SX45 vs T-Mobile Sidekick

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Sidekick: 202 g lighter

    SX45:
    330 g
    Sidekick:
    128 g
  • Width

    Sidekick: 29 mm narrower

    SX45:
    87 mm
    Sidekick:
    58 mm
  • Depth

    Sidekick: 8 mm thinner

    SX45:
    26 mm
    Sidekick:
    18 mm
  • Height

    Sidekick: 15 mm shorter

    SX45:
    134 mm
    Sidekick:
    119 mm
  • Release year

    SX45:
    2001
    Sidekick:
    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.

  1. 1. SX45

    Height:
    134 mm +15 mm versus Sidekick
    Width:
    87 mm +29 mm versus Sidekick
    Depth:
    26 mm +8 mm versus Sidekick
  2. 2. Sidekick

    Height:
    119 mm
    Width:
    58 mm
    Depth:
    18 mm

Weight

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

  1. 1. SX45

    330 g

    +202 g versus Sidekick

  2. 2. Sidekick

    128 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. SX45

    SX45: Screen geometry unavailable or conflicting.

  2. 2. Sidekick

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    19.2 cm²

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.

SX45: Original memory entry

32 MB

Sidekick: Original memory entry

128 MB RAM · 64 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. SX45

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

2. Sidekick

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.

Recorded battery capacity

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

  1. 1. SX45

    1550 mAh

    +520 mAh versus Sidekick

  2. 2. Sidekick

    1030 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. SX452. Sidekick

Everyday essentials
Everyday essentials — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Dimensions (HxWxD)
  • 134 Х 87 Х 26 mm
  • 119 Х 58 Х 18 mm
Weight
  • 330 g
  • 128 g
Technology
  • TFT
  • TFT
Screen size
  • 0" inch
  • 2.6" inch
Screen resolution
  • 240 x 320 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 MB
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • No
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1550 mAh
  • Removable Li-Ion
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows CE 3.0 for PocketPC
  • Danger 4.7
Headphone jack
  • No
  • Yes
Display
Display — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Touchscreen
  • resistive touchscreen
Unknown
Display colors
  • 65K
  • 65K
Screen area Unknown
  • 19.2 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio Unknown
  • 27.9%
PPI /points per inch/
  • 0 PPI
  • 179 PPI
Camera and Video
Camera and Video — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Rear camera, main
  • 0 MP,
  • 1.3 MP
  • Single
Camera specs Unknown
  • 1.3 MP
Video Unknown
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Processor CPU
  • 64-bit NEC VR4122 150 MHz
Unknown
General specs
General specs — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Release date
  • 2001
  • 2008
  • July
Colors Unknown
  • Black
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 2 h
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
SIM card
  • Mini-SIM
  • Mini-SIM
GPRS
  • No
  • Class 10
Edge
  • No
  • Class 10
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB Unknown
  • miniUSB
Bluetooth
  • No
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Radio
  • No
  • No
Others
  • 57.6 mm x 76.8 mm -0.24 mm pixel pitch
  • Swivel display
Other features
Other features — specifications for SX45, Sidekick.
SpecificationSX45Sidekick
Dop
  • Infrared port - Full PocketPC functionality -Media player (MP3) - PDA + mobile phone
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input