Samsung Galaxy M21 vs ZTE Blade S7

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.

• Display technology

  OLED versus LCD

  Galaxy M21:

  OLED

  Blade S7:

  LCD

• Weight

  Blade S7: 57 g lighter

  Galaxy M21:

  188 g

  Blade S7:

  131 g

• Width

  Blade S7: 8.1 mm narrower

  Galaxy M21:

  75.1 mm

  Blade S7:

  67 mm

• Screen diagonal

  Blade S7: 1.4 in smaller diagonal

  Galaxy M21:

  6.4 in

  Blade S7:

  5 in

• Chipset

  Galaxy M21:

  Exynos 9611 (10nm)

  Blade S7:

  Qualcomm MSM8939 Snapdragon 615 (28 nm)

• Rear camera layout

  Galaxy M21:

  Triple

  Blade S7:

  Single

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. Galaxy M21

   Height:

   159 mm +17 mm versus Blade S7

   Width:

   75.1 mm +8.1 mm versus Blade S7

   Depth:

   8.9 mm +1.7 mm versus Blade S7

2. 2. Blade S7

   Height:

   142 mm

   Width:

   67 mm

   Depth:

   7.2 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. Galaxy M21

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 cm²

2. 2. Blade S7

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

Galaxy M21 has approximately 45.9% more rectangular screen area than Blade S7.

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.