Oppo R2001 Yoyo vs Siemens SX66

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

  R2001 Yoyo: 65 g lighter

  R2001 Yoyo:

  145 g

  SX66:

  210 g

• Width

  R2001 Yoyo: 1.5 mm narrower

  R2001 Yoyo:

  69.5 mm

  SX66:

  71 mm

• Screen diagonal

  SX66: 1.2 in smaller diagonal

  R2001 Yoyo:

  4.7 in

  SX66:

  3.5 in

• Depth

  R2001 Yoyo: 8.8 mm thinner

  R2001 Yoyo:

  9.2 mm

  SX66:

  18 mm

• Height

  SX66: 13.5 mm shorter

  R2001 Yoyo:

  138.5 mm

  SX66:

  125 mm

• Release year

  R2001 Yoyo:

  2014

  SX66:

  2004

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. R2001 Yoyo

   Height:

   138.5 mm +13.5 mm versus SX66

   Width:

   69.5 mm

   Depth:

   9.2 mm

2. 2. SX66

   Height:

   125 mm

   Width:

   71 mm +1.5 mm versus R2001 Yoyo

   Depth:

   18 mm +8.8 mm versus R2001 Yoyo

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. R2001 Yoyo

   Screen diagonal:

   4.7 in

   Aspect ratio (height:width):

   16:9

   Approximate rectangular screen area:

   60.9 cm²

2. 2. SX66

   Screen diagonal:

   3.5 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   37.9 cm²

R2001 Yoyo has approximately 60.5% more rectangular screen area than SX66.

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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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.