TECNO Spark CM vs vivo U3

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

  Spark CM: 21 g lighter

  Spark CM:

  172 g

  U3:

  193 g

• Width

  Spark CM: 4.8 mm narrower

  Spark CM:

  71.7 mm

  U3:

  76.5 mm

• Screen diagonal

  Spark CM: 0.83 in smaller diagonal

  Spark CM:

  5.7 in

  U3:

  6.53 in

• Chipset

  Spark CM:

  Mediatek MT6737

  U3:

  Qualcomm SDM675 Snapdragon 675 (11 nm)

• Rear camera layout

  Spark CM:

  Single

  U3:

  Triple

• Depth

  Spark CM: 3.3 mm thinner

  Spark CM:

  5.6 mm

  U3:

  8.9 mm

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

   Width:

   71.7 mm

   Depth:

   5.6 mm

2. 2. U3

   Height:

   162.2 mm +10 mm versus Spark CM

   Width:

   76.5 mm +4.8 mm versus Spark CM

   Depth:

   8.9 mm +3.3 mm versus Spark CM

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. U3

   Screen diagonal:

   6.53 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   104.7 cm²

U3 has approximately 24.8% more rectangular screen area than Spark CM.

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.