O2 XDA Atom vs Samsung Epic 4G

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

  XDA Atom: 15 g lighter

  XDA Atom:

  140 g

  Epic 4G:

  155 g

• Width

  XDA Atom: 7 mm narrower

  XDA Atom:

  58 mm

  Epic 4G:

  65 mm

• Screen diagonal

  XDA Atom: 1.3 in smaller diagonal

  XDA Atom:

  2.7 in

  Epic 4G:

  4 in

• Depth

  Epic 4G: 4.5 mm thinner

  XDA Atom:

  18.5 mm

  Epic 4G:

  14 mm

• Height

  XDA Atom: 22 mm shorter

  XDA Atom:

  102 mm

  Epic 4G:

  124 mm

• Release year

  XDA Atom:

  2005

  Epic 4G:

  2010

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 Atom

   Height:

   102 mm

   Width:

   58 mm

   Depth:

   18.5 mm +4.5 mm versus Epic 4G

2. 2. Epic 4G

   Height:

   124 mm +22 mm versus XDA Atom

   Width:

   65 mm +7 mm versus XDA Atom

   Depth:

   14 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 Atom

   Screen diagonal:

   2.7 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   22.6 cm²

2. 2. Epic 4G

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

Epic 4G has approximately 101.7% more rectangular screen area than XDA Atom.

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.