HTC One S9 vs Plum Coach Plus

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

  One S9: 92 g lighter

  One S9:

  158 g

  Coach Plus:

  250 g

• Width

  One S9: 18.3 mm narrower

  One S9:

  69.7 mm

  Coach Plus:

  88 mm

• Screen diagonal

  One S9: 1 in smaller diagonal

  One S9:

  5 in

  Coach Plus:

  6 in

• Chipset

  One S9:

  Mediatek MT6795 Helio X10 (28 nm)

  Coach Plus:

  Mediatek MT8312 (28 nm)

• Depth

  One S9: 1.1 mm thinner

  One S9:

  10.1 mm

  Coach Plus:

  11.2 mm

• Height

  One S9: 23.4 mm shorter

  One S9:

  144.6 mm

  Coach Plus:

  168 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. One S9

   Height:

   144.6 mm

   Width:

   69.7 mm

   Depth:

   10.1 mm

2. 2. Coach Plus

   Height:

   168 mm +23.4 mm versus One S9

   Width:

   88 mm +18.3 mm versus One S9

   Depth:

   11.2 mm +1.1 mm versus One S9

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. One S9

   Screen diagonal:

   5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   68.9 cm²

2. 2. Coach Plus

   Screen diagonal:

   6 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   99.2 cm²

Coach Plus has approximately 44% more rectangular screen area than One S9.

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.