Lava Z91 vs Xiaomi Redmi 8A

Compare recorded specifications, size and practical differences.

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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

    Z91: 41 g lighter

    Z91:
    147 g
    Redmi 8A:
    188 g
  • Width

    Z91: 2.5 mm narrower

    Z91:
    72.9 mm
    Redmi 8A:
    75.4 mm
  • Screen diagonal

    Z91: 0.5 in smaller diagonal

    Z91:
    5.7 in
    Redmi 8A:
    6.2 in
  • Chipset

    Z91:
    Mediatek MT6739 (28 nm)
    Redmi 8A:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Depth

    Z91: 1.7 mm thinner

    Z91:
    7.7 mm
    Redmi 8A:
    9.4 mm
  • Height

    Z91: 4.5 mm shorter

    Z91:
    152 mm
    Redmi 8A:
    156.5 mm

Physical size

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. Z91

    Height:
    152 mm
    Width:
    72.9 mm
    Depth:
    7.7 mm
  2. 2. Redmi 8A

    Height:
    156.5 mm +4.5 mm versus Z91
    Width:
    75.4 mm +2.5 mm versus Z91
    Depth:
    9.4 mm +1.7 mm versus Z91

Weight

Bars start at zero and share a scale within this chart.

  1. 1. Z91

    147 g

  2. 2. Redmi 8A

    188 g

    +41 g versus Z91

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. Z91

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. Redmi 8A

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    95.9 cm²

Redmi 8A has approximately 14.4% more rectangular screen area than Z91.

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.

Recorded RAM for Z91, Redmi 8A, compared at the same storage capacity.
StorageZ91Redmi 8A
32 GB Recorded for all phones 3 GB RAM 2 / 3 GB RAM Alternative RAM configurations

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Z91

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

2. Redmi 8A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. Z91

    3000 mAh

  2. 2. Redmi 8A

    5000 mAh

    +2000 mAh versus Z91

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.

1. Z912. Redmi 8A

Everyday essentials
Everyday essentials — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 147 g
  • 188 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 6.2" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 7.1 (Nougat)
  • Android 9.0 (Pie)
Chipset
  • Mediatek MT6739 (28 nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 95.9 cm2
Screen format
  • 18:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 75.7%
  • 81.3%
PPI /points per inch/
  • 282 PPI
  • 271 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Rear camera, main
  • 13 MP
  • Single
  • 12 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
Functions
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 8 MP
  • f/2.0
  • 1.12µm
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53)
Graphics processor GPU
  • PowerVR GE8100
  • Adreno 505
Antutu 7 score *
  • 35722
Unknown
GeekBench 4 Single Core * Unknown
  • 864
GeekBench 4 Multi-Core * Unknown
  • 3669
Antutu 8 score * Unknown
  • 87337
General specs
General specs — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Release date
  • 2018
  • March
  • 2019
  • September
Colors
  • Blue
  • Midnight Black
  • Ocean Blue
  • Sunset Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 100 EUR
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) - Global LTE band 1(2100)
  • 40(2300)
  • 41(2500) - India LTE band 1(2100)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Radio
  • FM radio
  • FM radio
  • built-in antenna
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Z91, Redmi 8A.
SpecificationZ91Redmi 8A
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Accelerometer
  • proximity
  • compass
  • Infrared port - Fast battery charging 18W - Splash resistant