TECNO Spark CM vs ZTE Open

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.

• Width

  Open: 9.7 mm narrower

  Spark CM:

  71.7 mm

  Open:

  62 mm

• Screen diagonal

  Open: 2.2 in smaller diagonal

  Spark CM:

  5.7 in

  Open:

  3.5 in

• Chipset

  Spark CM:

  Mediatek MT6737

  Open:

  Qualcomm MSM7225A Snapdragon S1

• Depth

  Spark CM: 6.9 mm thinner

  Spark CM:

  5.6 mm

  Open:

  12.5 mm

• Height

  Open: 38.2 mm shorter

  Spark CM:

  152.2 mm

  Open:

  114 mm

• Release year

  Spark CM:

  2017

  Open:

  2013

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. Spark CM

   Height:

   152.2 mm +38.2 mm versus Open

   Width:

   71.7 mm +9.7 mm versus Open

   Depth:

   5.6 mm

   Weight:

   172 g

2. 2. Open

   Height:

   114 mm

   Width:

   62 mm

   Depth:

   12.5 mm +6.9 mm versus Spark CM

   Weight:

   Unknown

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. Spark CM

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   83.8 cm²

2. 2. Open

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   36.5 cm²

Spark CM has approximately 129.9% more rectangular screen area than Open.

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.