Allview X4 Soul vs HTC U Ultra

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

  X4 Soul: 3.4 mm narrower

  X4 Soul:

  76.4 mm

  U Ultra:

  79.8 mm

• Screen diagonal

  X4 Soul: 0.2 in smaller diagonal

  X4 Soul:

  5.5 in

  U Ultra:

  5.7 in

• Chipset

  X4 Soul:

  Mediatek MT6755 Helio P10 (28 nm)

  U Ultra:

  Qualcomm MSM8996 Snapdragon 821 (14 nm)

• Depth

  X4 Soul: 0.6 mm thinner

  X4 Soul:

  7.4 mm

  U Ultra:

  8 mm

• Height

  X4 Soul: 8.2 mm shorter

  X4 Soul:

  154.2 mm

  U Ultra:

  162.4 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. X4 Soul

   Height:

   154.2 mm

   Width:

   76.4 mm

   Depth:

   7.4 mm

2. 2. U Ultra

   Height:

   162.4 mm +8.2 mm versus X4 Soul

   Width:

   79.8 mm +3.4 mm versus X4 Soul

   Depth:

   8 mm +0.6 mm versus X4 Soul

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. X4 Soul

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. U Ultra

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

U Ultra has approximately 7.4% more rectangular screen area than X4 Soul.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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.