HTC First vs Siemens SX66

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

  First: 86.1 g lighter

  First:

  123.9 g

  SX66:

  210 g

• Width

  First: 6 mm narrower

  First:

  65 mm

  SX66:

  71 mm

• Screen diagonal

  SX66: 0.8 in smaller diagonal

  First:

  4.3 in

  SX66:

  3.5 in

• Depth

  First: 9.1 mm thinner

  First:

  8.9 mm

  SX66:

  18 mm

• Release year

  First:

  2013

  SX66:

  2004

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. First

   Height:

   126 mm

   Width:

   65 mm

   Depth:

   8.9 mm

2. 2. SX66

   Height:

   125 mm

   Width:

   71 mm +6 mm versus First

   Depth:

   18 mm +9.1 mm versus First

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. First

   Screen diagonal:

   4.3 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   51 cm²

2. 2. SX66

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

First has approximately 34.4% more rectangular screen area than SX66.

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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.