Energizer Ultimate U650S vs Lava Z81

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.

• Width

  Z81: 3.5 mm narrower

  Ultimate U650S:

  76.5 mm

  Z81:

  73 mm

• Screen diagonal

  Z81: 0.8 in smaller diagonal

  Ultimate U650S:

  6.5 in

  Z81:

  5.7 in

• Chipset

  Ultimate U650S:

  Mediatek MT6762 Helio P22 (12 nm)

  Z81:

  Mediatek MT6761 Helio A22 (12 nm)

• Rear camera layout

  Ultimate U650S:

  Dual

  Z81:

  Single

• Height

  Z81: 10.3 mm shorter

  Ultimate U650S:

  162.5 mm

  Z81:

  152.2 mm

• Release year

  Ultimate U650S:

  2019

  Z81:

  2018

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. Ultimate U650S

   Height:

   162.5 mm +10.3 mm versus Z81

   Width:

   76.5 mm +3.5 mm versus Z81

   Depth:

   8.2 mm

   Weight:

   Unknown

2. 2. Z81

   Height:

   152.2 mm

   Width:

   73 mm

   Depth:

   7.9 mm

   Weight:

   141 g

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. Ultimate U650S

   Screen diagonal:

   6.5 in

   Aspect ratio (height:width):

   18.5:9

   Approximate rectangular screen area:

   107.2 cm²

2. 2. Z81

   Screen diagonal:

   5.7 in

   Aspect ratio (height:width):

   18:9

   Approximate rectangular screen area:

   83.8 cm²

Ultimate U650S has approximately 27.9% more rectangular screen area than Z81.

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.