Acer Stream vs Lava Z91

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.

• Display technologyOLED versus LCDStream: OLED · Z91: LCD
• WeightStream: 7 g lighterStream: 140 g · Z91: 147 g
• WidthStream: 9.9 mm narrowerStream: 63 mm · Z91: 72.9 mm
• Screen diagonalStream: 2 in smaller diagonalStream: 3.7 in · Z91: 5.7 in
• ChipsetQualcomm QSD8250 Snapdragon S1 / Mediatek MT6739 (28 nm)Stream: Qualcomm QSD8250 Snapdragon S1 · Z91: Mediatek MT6739 (28 nm)
• DepthZ91: 3.5 mm thinnerZ91: 7.7 mm · Stream: 11.2 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. Stream

   Height

   119.5 mm

   Width

   63 mm

   Depth

   11.2 mm+3.5 mm versus Z91

   Weight

   140 g

2. 2. Z91

   Height

   152 mm+32.5 mm versus Stream

   Width

   72.9 mm+9.9 mm versus Stream

   Depth

   7.7 mm

   Weight

   147 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. Stream 3.7 in · 5:3 About 39 cm² rectangular area
2. 2. Z91 5.7 in · 18:9 About 83.8 cm² rectangular area

Z91 has approximately 115.2% more rectangular screen area than Stream.

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.