alcatel OT-991 vs Philips D633

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

  OT-991: 22.7 g lighter

  OT-991:

  131.3 g

  D633:

  154 g

• Width

  D633: 4.1 mm narrower

  OT-991:

  68 mm

  D633:

  63.9 mm

• Depth

  OT-991: 0.7 mm thinner

  OT-991:

  10.8 mm

  D633:

  11.5 mm

• Height

  OT-991: 3.4 mm shorter

  OT-991:

  122 mm

  D633:

  125.4 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. OT-991

   Height:

   122 mm

   Width:

   68 mm +4.1 mm versus D633

   Depth:

   10.8 mm

2. 2. D633

   Height:

   125.4 mm +3.4 mm versus OT-991

   Width:

   63.9 mm

   Depth:

   11.5 mm +0.7 mm versus OT-991

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. OT-991

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   3:2

   Approximate rectangular screen area:

   47.6 cm²

2. 2. D633

   Screen diagonal:

   4 in

   Aspect ratio (height:width):

   5:3

   Approximate rectangular screen area:

   45.5 cm²

OT-991 has approximately 4.6% more rectangular screen area than D633.

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.