Lava Z91 vs Samsung Galaxy M20

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: 39 g lighter

    Z91:
    147 g
    Galaxy M20:
    186 g
  • Width

    Z91: 1.6 mm narrower

    Z91:
    72.9 mm
    Galaxy M20:
    74.5 mm
  • Screen diagonal

    Z91: 0.6 in smaller diagonal

    Z91:
    5.7 in
    Galaxy M20:
    6.3 in
  • Chipset

    Z91:
    Mediatek MT6739 (28 nm)
    Galaxy M20:
    Exynos 7904 Octa (14 nm)
  • Rear camera layout

    Z91:
    Single
    Galaxy M20:
    Dual
  • Depth

    Z91: 1.1 mm thinner

    Z91:
    7.7 mm
    Galaxy M20:
    8.8 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. Galaxy M20

    Height:
    156.4 mm +4.4 mm versus Z91
    Width:
    74.5 mm +1.6 mm versus Z91
    Depth:
    8.8 mm +1.1 mm versus Z91

Weight

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

  1. 1. Z91

    147 g

  2. 2. Galaxy M20

    186 g

    +39 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. Galaxy M20

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

Galaxy M20 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, Galaxy M20, compared at the same storage capacity.
StorageZ91Galaxy M20
32 GB 3 GB RAM Unknown
Galaxy M20: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM

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. Galaxy M20

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. Galaxy M20

    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. Galaxy M20

Everyday essentials
Everyday essentials — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 156.4 Х 74.5 Х 8.8 mm
Weight
  • 147 g
  • 186 g
Technology
  • IPS LCD
  • PLS TFT
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
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB 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 8.1 (Oreo); Experience 9.5
Chipset
  • Mediatek MT6739 (28 nm)
  • Exynos 7904 Octa (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
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%
  • 83.6%
PPI /points per inch/
  • 282 PPI
  • 409 PPI
Camera and Video
Camera and Video — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 13 MP
  • f/1.9
  • 1/2.8''
  • 1.12µm
  • PDAF -5 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/6"
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
Performance

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

Performance — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (2x1.8 GHz Kryo 260 Gold & 6x1.6 GHz Kryo 260 Silver)
Graphics processor GPU
  • PowerVR GE8100
  • Mali-G71 MP2
Antutu 7 score *
  • 35722
  • 109326
GeekBench 5 Single Core * Unknown
  • 263
GeekBench 5 Multi-Core * Unknown
  • 959
General specs
General specs — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Release date
  • 2018
  • March
  • 2019
  • January
Colors
  • Blue
  • Ocean Blue
  • Charcoal Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 150 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat12 600/50 Mbps
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
  • WiFi 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
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR EU - 0.25 W/kg (head) 1.59 W/kg (body)
Music and Audio
Music and Audio — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Radio
  • FM radio
  • FM radio
  • RDS
  • recording
Others Unknown
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
Other features
Other features — specifications for Z91, Galaxy M20.
SpecificationZ91Galaxy M20
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W