Samsung Galaxy J7 Duo vs T-Mobile HD2

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

  HD2: 17 g lighter

  Galaxy J7 Duo:

  174 g

  HD2:

  157 g

• Width

  HD2: 10.2 mm narrower

  Galaxy J7 Duo:

  77.2 mm

  HD2:

  67 mm

• Screen diagonal

  HD2: 1.2 in smaller diagonal

  Galaxy J7 Duo:

  5.5 in

  HD2:

  4.3 in

• Chipset

  Galaxy J7 Duo:

  Exynos 7885 Octa (14 nm)

  HD2:

  Qualcomm QSD8250 Snapdragon S1

• Rear camera layout

  Galaxy J7 Duo:

  Dual

  HD2:

  Single

• Depth

  Galaxy J7 Duo: 2.8 mm thinner

  Galaxy J7 Duo:

  8.2 mm

  HD2:

  11 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. Galaxy J7 Duo

   Height:

   153.5 mm +31.5 mm versus HD2

   Width:

   77.2 mm +10.2 mm versus HD2

   Depth:

   8.2 mm

2. 2. HD2

   Height:

   122 mm

   Width:

   67 mm

   Depth:

   11 mm +2.8 mm versus Galaxy J7 Duo

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. Galaxy J7 Duo

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. HD2

   Screen diagonal:

   4.3 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   52.6 cm²

Galaxy J7 Duo has approximately 58.5% more rectangular screen area than HD2.

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.