Siemens SX66 vs T-Mobile Sidekick 3

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 3: 20 g lighter

  SX66:

  210 g

  Sidekick 3:

  190 g

• Width

  Sidekick 3: 12 mm narrower

  SX66:

  71 mm

  Sidekick 3:

  59 mm

• Screen diagonal

  Sidekick 3: 0.9 in smaller diagonal

  SX66:

  3.5 in

  Sidekick 3:

  2.6 in

• Depth

  SX66: 4 mm thinner

  SX66:

  18 mm

  Sidekick 3:

  22 mm

• Height

  SX66: 5 mm shorter

  SX66:

  125 mm

  Sidekick 3:

  130 mm

• Release year

  SX66:

  2004

  Sidekick 3:

  2006

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. SX66

   Height:

   125 mm

   Width:

   71 mm +12 mm versus Sidekick 3

   Depth:

   18 mm

2. 2. Sidekick 3

   Height:

   130 mm +5 mm versus SX66

   Width:

   59 mm

   Depth:

   22 mm +4 mm versus SX66

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. SX66

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

2. 2. Sidekick 3

   Screen diagonal:

   2.6 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   20.1 cm²

SX66 has approximately 88.5% more rectangular screen area than Sidekick 3.

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.

Practical features

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

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.

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.