OnePlus 3T vs Samsung Galaxy M31

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

  3T: 33 g lighter

  3T:

  158 g

  Galaxy M31:

  191 g

• Screen diagonal

  3T: 0.9 in smaller diagonal

  3T:

  5.5 in

  Galaxy M31:

  6.4 in

• Chipset

  3T:

  Qualcomm MSM8996 Snapdragon 821 (14 nm)

  Galaxy M31:

  Exynos 9611 (10nm)

• Rear camera layout

  3T:

  Single

  Galaxy M31:

  Triple

• Depth

  3T: 1.5 mm thinner

  3T:

  7.4 mm

  Galaxy M31:

  8.9 mm

• Height

  3T: 6.5 mm shorter

  3T:

  152.7 mm

  Galaxy M31:

  159.2 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. 3T

   Height:

   152.7 mm

   Width:

   74.7 mm

   Depth:

   7.4 mm

2. 2. Galaxy M31

   Height:

   159.2 mm +6.5 mm versus 3T

   Width:

   75.1 mm

   Depth:

   8.9 mm +1.5 mm versus 3T

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. 3T

   Screen diagonal:

   5.5 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   83.4 cm²

2. 2. Galaxy M31

   Screen diagonal:

   6.4 in

   Aspect ratio (height:width):

   19.5:9

   Approximate rectangular screen area:

   100.5 cm²

Galaxy M31 has approximately 20.6% more rectangular screen area than 3T.

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.

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.