Samsung Galaxy A51 vs Samsung Galaxy Ace 4

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

  Galaxy Ace 4: 48.2 g lighter

  Galaxy A51:

  172 g

  Galaxy Ace 4:

  123.8 g

• Width

  Galaxy Ace 4: 10.7 mm narrower

  Galaxy A51:

  73.6 mm

  Galaxy Ace 4:

  62.9 mm

• Screen diagonal

  Galaxy Ace 4: 2.5 in smaller diagonal

  Galaxy A51:

  6.5 in

  Galaxy Ace 4:

  4 in

• Rear camera layout

  Galaxy A51:

  Quad

  Galaxy Ace 4:

  Single

• Depth

  Galaxy A51: 2.9 mm thinner

  Galaxy A51:

  7.9 mm

  Galaxy Ace 4:

  10.8 mm

• Height

  Galaxy Ace 4: 37.1 mm shorter

  Galaxy A51:

  158.5 mm

  Galaxy Ace 4:

  121.4 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. Galaxy A51

   Height:

   158.5 mm +37.1 mm versus Galaxy Ace 4

   Width:

   73.6 mm +10.7 mm versus Galaxy Ace 4

   Depth:

   7.9 mm

2. 2. Galaxy Ace 4

   Height:

   121.4 mm

   Width:

   62.9 mm

   Depth:

   10.8 mm +2.9 mm versus Galaxy A51

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 A51

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   20:9

   Approximate rectangular screen area:

   102 cm²

2. 2. Galaxy Ace 4

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Galaxy A51 has approximately 124% more rectangular screen area than Galaxy Ace 4.

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.