LG Q51 vs LG U

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

  U: 4.3 mm narrower

  Q51:

  77.5 mm

  U:

  73.2 mm

• Screen diagonal

  U: 1.3 in smaller diagonal

  Q51:

  6.5 in

  U:

  5.2 in

• Memory variants

  At 32 GB storage

  Q51:

  3 GB RAM

  U:

  2 GB RAM

• Rear camera layout

  Q51:

  Triple

  U:

  Single

• Depth

  U: 0.7 mm thinner

  Q51:

  8.4 mm

  U:

  7.7 mm

• Height

  U: 16.9 mm shorter

  Q51:

  164.5 mm

  U:

  147.6 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. Q51

   Height:

   164.5 mm +16.9 mm versus U

   Width:

   77.5 mm +4.3 mm versus U

   Depth:

   8.4 mm +0.7 mm versus U

   Weight:

   Unknown

2. 2. U

   Height:

   147.6 mm

   Width:

   73.2 mm

   Depth:

   7.7 mm

   Weight:

   135 g

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. Q51

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   19:9

   Approximate rectangular screen area:

   105.5 cm²

2. 2. U

   Screen diagonal:

   5.2 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   74.5 cm²

Q51 has approximately 41.5% more rectangular screen area than U.

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.