BlackBerry 6720 vs TECNO Spark CM

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

  6720: 34 g lighter

  6720:

  138 g

  Spark CM:

  172 g

• Width

  Spark CM: 5.3 mm narrower

  6720:

  77 mm

  Spark CM:

  71.7 mm

• Screen diagonal

  6720: 2.7 in smaller diagonal

  6720:

  3 in

  Spark CM:

  5.7 in

• Depth

  Spark CM: 12.4 mm thinner

  6720:

  18 mm

  Spark CM:

  5.6 mm

• Height

  6720: 31.2 mm shorter

  6720:

  121 mm

  Spark CM:

  152.2 mm

• Release year

  6720:

  2003

  Spark CM:

  2017

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. 6720

   Height:

   121 mm

   Width:

   77 mm +5.3 mm versus Spark CM

   Depth:

   18 mm +12.4 mm versus Spark CM

2. 2. Spark CM

   Height:

   152.2 mm +31.2 mm versus 6720

   Width:

   71.7 mm

   Depth:

   5.6 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. 6720

   Screen diagonal:

   3 in

   Aspect ratio (height:width):

   1:1

   Approximate rectangular screen area:

   29 cm²

2. 2. Spark CM

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   83.8 cm²

Spark CM has approximately 188.8% more rectangular screen area than 6720.

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.

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.