Celkon Millennia Hero vs T-Mobile Sidekick 4G

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

  Millennia Hero: 49 g lighter

  Millennia Hero:

  113 g

  Sidekick 4G:

  162 g

• Width

  Sidekick 4G: 3 mm narrower

  Millennia Hero:

  64 mm

  Sidekick 4G:

  61 mm

• Screen diagonal

  Sidekick 4G: 0.5 in smaller diagonal

  Millennia Hero:

  4 in

  Sidekick 4G:

  3.5 in

• Depth

  Millennia Hero: 4 mm thinner

  Millennia Hero:

  11 mm

  Sidekick 4G:

  15 mm

• Height

  Millennia Hero: 2 mm shorter

  Millennia Hero:

  125 mm

  Sidekick 4G:

  127 mm

• Release year

  Millennia Hero:

  2015

  Sidekick 4G:

  2011

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. Millennia Hero

   Height:

   125 mm

   Width:

   64 mm +3 mm versus Sidekick 4G

   Depth:

   11 mm

2. 2. Sidekick 4G

   Height:

   127 mm +2 mm versus Millennia Hero

   Width:

   61 mm

   Depth:

   15 mm +4 mm versus Millennia Hero

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. Millennia Hero

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

2. 2. Sidekick 4G

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   34.9 cm²

Millennia Hero has approximately 30.6% more rectangular screen area than Sidekick 4G.

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.

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.

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.