Celkon Millennia Hero vs Spice Stellar 520 (Mi-520)

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: 43 g lighter

  Millennia Hero:

  113 g

  Stellar 520 (Mi-520):

  156 g

• Width

  Millennia Hero: 8.8 mm narrower

  Millennia Hero:

  64 mm

  Stellar 520 (Mi-520):

  72.8 mm

• Screen diagonal

  Millennia Hero: 1 in smaller diagonal

  Millennia Hero:

  4 in

  Stellar 520 (Mi-520):

  5 in

• Depth

  Stellar 520 (Mi-520): 2.5 mm thinner

  Millennia Hero:

  11 mm

  Stellar 520 (Mi-520):

  8.5 mm

• Height

  Millennia Hero: 20 mm shorter

  Millennia Hero:

  125 mm

  Stellar 520 (Mi-520):

  145 mm

• Release year

  Millennia Hero:

  2015

  Stellar 520 (Mi-520):

  2014

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

   Depth:

   11 mm +2.5 mm versus Stellar 520 (Mi-520)

2. 2. Stellar 520 (Mi-520)

   Height:

   145 mm +20 mm versus Millennia Hero

   Width:

   72.8 mm +8.8 mm versus Millennia Hero

   Depth:

   8.5 mm

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. Stellar 520 (Mi-520)

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Stellar 520 (Mi-520) has approximately 51.3% more rectangular screen area than Millennia Hero.

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.