O2 XDA Stealth vs verykool s401

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

  s401: 40 g lighter

  XDA Stealth:

  140 g

  s401:

  100 g

• Width

  XDA Stealth: 12 mm narrower

  XDA Stealth:

  53 mm

  s401:

  65 mm

• Screen diagonal

  XDA Stealth: 1.6 in smaller diagonal

  XDA Stealth:

  2.4 in

  s401:

  4 in

• Depth

  s401: 12.1 mm thinner

  XDA Stealth:

  22.5 mm

  s401:

  10.4 mm

• Height

  XDA Stealth: 16 mm shorter

  XDA Stealth:

  110 mm

  s401:

  126 mm

• Release year

  XDA Stealth:

  2006

  s401:

  2014

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. XDA Stealth

   Height:

   110 mm

   Width:

   53 mm

   Depth:

   22.5 mm +12.1 mm versus s401

2. 2. s401

   Height:

   126 mm +16 mm versus XDA Stealth

   Width:

   65 mm +12 mm versus XDA Stealth

   Depth:

   10.4 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. XDA Stealth

   Screen diagonal:

   2.4 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   17.8 cm²

2. 2. s401

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

s401 has approximately 155.3% more rectangular screen area than XDA Stealth.

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.