HTC U Ultra vs Xiaomi Mi 9

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

  U Ultra:

  LCD

  Mi 9:

  OLED

• Width

  Mi 9: 5.1 mm narrower

  U Ultra:

  79.8 mm

  Mi 9:

  74.7 mm

• Screen diagonal

  U Ultra: 0.69 in smaller diagonal

  U Ultra:

  5.7 in

  Mi 9:

  6.39 in

• Chipset

  U Ultra:

  Qualcomm MSM8996 Snapdragon 821 (14 nm)

  Mi 9:

  Qualcomm SDM855 Snapdragon 855 (7 nm)

• Rear camera layout

  U Ultra:

  Single

  Mi 9:

  Triple

• Height

  Mi 9: 4.9 mm shorter

  U Ultra:

  162.4 mm

  Mi 9:

  157.5 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. U Ultra

   Height:

   162.4 mm +4.9 mm versus Mi 9

   Width:

   79.8 mm +5.1 mm versus Mi 9

   Depth:

   8 mm

2. 2. Mi 9

   Height:

   157.5 mm

   Width:

   74.7 mm

   Depth:

   7.6 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. U Ultra

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   89.6 cm²

2. 2. Mi 9

   Screen diagonal:

   6.39 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.2 cm²

Mi 9 has approximately 11.9% more rectangular screen area than U Ultra.

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.