Telit SP600 vs Yezz Billy 4

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

  SP600: 10 g lighter

  SP600:

  99 g

  Billy 4:

  109 g

• Width

  SP600: 16.7 mm narrower

  SP600:

  47.7 mm

  Billy 4:

  64.4 mm

• Depth

  Billy 4: 7.8 mm thinner

  SP600:

  17.7 mm

  Billy 4:

  9.9 mm

• Height

  SP600: 13.5 mm shorter

  SP600:

  109 mm

  Billy 4:

  122.5 mm

• Release year

  SP600:

  2005

  Billy 4:

  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. SP600

   Height:

   109 mm

   Width:

   47.7 mm

   Depth:

   17.7 mm +7.8 mm versus Billy 4

2. 2. Billy 4

   Height:

   122.5 mm +13.5 mm versus SP600

   Width:

   64.4 mm +16.7 mm versus SP600

   Depth:

   9.9 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.

At least two phones need compatible screen dimensions for a drawing.

1. 1. SP600

   SP600: Screen geometry unavailable or conflicting.

2. 2. Billy 4

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

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.