Lava Z91 vs Xiaomi Redmi Note 8

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 43 g lighter

    Z91:
    147 g
    Redmi Note 8:
    190 g
  • Width

    Z91: 2.4 mm narrower

    Z91:
    72.9 mm
    Redmi Note 8:
    75.3 mm
  • Screen diagonal

    Z91: 0.6 in smaller diagonal

    Z91:
    5.7 in
    Redmi Note 8:
    6.3 in
  • Chipset

    Z91:
    Mediatek MT6739 (28 nm)
    Redmi Note 8:
    Qualcomm SDM665 Snapdragon 665 (11 nm)
  • Rear camera layout

    Z91:
    Single
    Redmi Note 8:
    Quad
  • Depth

    Z91: 0.7 mm thinner

    Z91:
    7.7 mm
    Redmi Note 8:
    8.4 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 Note 8

    Height:
    158.3 mm +6.3 mm versus Z91
    Width:
    75.3 mm +2.4 mm versus Z91
    Depth:
    8.4 mm +0.7 mm versus Z91

Weight

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

  1. 1. Z91

    147 g

  2. 2. Redmi Note 8

    190 g

    +43 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 Note 8

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²

Redmi Note 8 has approximately 16.2% 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 Note 8, compared at the same storage capacity.
StorageZ91Redmi Note 8
32 GB Recorded for all phones 3 GB RAM 3 GB RAM
64 GB Not recorded 4 / 6 GB RAM Alternative RAM configurations
128 GB Not recorded 4 / 6 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 Note 8

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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 Note 8

    4000 mAh

    +1000 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 Note 8

Everyday essentials
Everyday essentials — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 158.3 Х 75.3 Х 8.4 mm
Weight
  • 147 g
  • 190 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 6.3" inch
Screen resolution
  • 720 x 1440 px
  • 1080 x 2340 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 3GB RAM
  • 64GB 4GB RAM
  • 64GB 6GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 7.1 (Nougat)
  • Android 9.0 (Pie); MIUI 10
Chipset
  • Mediatek MT6739 (28 nm)
  • Qualcomm SDM665 Snapdragon 665 (11 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 97.4 cm2
Screen format
  • 18:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 75.7%
  • 81.7%
PPI /points per inch/
  • 282 PPI
  • 409 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Rear camera, main
  • 13 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4"
  • 1.12µm -2 MP
  • f/2.4
  • 1/5"
  • 1.75µm (dedicated macro camera) -2 MP
  • 1.75µm
  • depth sensor
Functions
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 13 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 13 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 Note 8.
SpecificationZ91Redmi Note 8
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Graphics processor GPU
  • PowerVR GE8100
  • Adreno 610
Antutu 7 score *
  • 35722
  • 143740
GeekBench 4 Single Core * Unknown
  • 1499
GeekBench 4 Multi-Core * Unknown
  • 5543
Antutu 8 score * Unknown
  • 173592
GeekBench 5 Single Core * Unknown
  • 309
GeekBench 5 Multi-Core * Unknown
  • 1328
General specs
General specs — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Release date
  • 2018
  • March
  • 2019
  • August
Colors
  • Blue
  • Neptune Blue
  • Moonlight White
  • Space Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 190 EUR
Body build Unknown
  • Front/back glass (Gorilla Glass 5)
Communication and Connectivity
Communication and Connectivity — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
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 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/11.5 Mbps
  • 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 a/b/g/n/ac
  • dual-band
  • 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
Harmful irradiation Unknown
  • SAR - 0.26 W/kg (head) 1.00 W/kg (body) SAR EU - 0.26 W/kg (head) 1.00 W/kg (body)
Music and Audio
Music and Audio — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Z91, Redmi Note 8.
SpecificationZ91Redmi Note 8
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 18W