Lava Z91 vs Samsung Galaxy A50s

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.

  • Display technology

    OLED versus LCD

    Z91:
    LCD
    Galaxy A50s:
    OLED
  • Weight

    Z91: 22 g lighter

    Z91:
    147 g
    Galaxy A50s:
    169 g
  • Width

    Z91: 1.6 mm narrower

    Z91:
    72.9 mm
    Galaxy A50s:
    74.5 mm
  • Screen diagonal

    Z91: 0.7 in smaller diagonal

    Z91:
    5.7 in
    Galaxy A50s:
    6.4 in
  • Chipset

    Z91:
    Mediatek MT6739 (28 nm)
    Galaxy A50s:
    Exynos 9611 (10nm)
  • Rear camera layout

    Z91:
    Single
    Galaxy A50s:
    Triple

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 A50s

    Height:
    158.5 mm +6.5 mm versus Z91
    Width:
    74.5 mm +1.6 mm versus Z91
    Depth:
    7.7 mm

Weight

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

  1. 1. Z91

    147 g

  2. 2. Galaxy A50s

    169 g

    +22 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 A50s

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

Galaxy A50s has approximately 19.9% 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 A50s, compared at the same storage capacity.
StorageZ91Galaxy A50s
32 GB 3 GB RAM Not recorded
64 GB Not recorded 4 GB RAM
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. Galaxy A50s

NFC:
See details Yes (market dependent)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (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 A50s

    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. Galaxy A50s

Everyday essentials
Everyday essentials — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 158.5 Х 74.5 Х 7.7 mm
Weight
  • 147 g
  • 169 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 5.7" inch
  • 6.4" 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
  • 64GB 4GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 1 TB (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)
Chipset
  • Mediatek MT6739 (28 nm)
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 100.5 cm2
Screen format
  • 18:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 75.7%
  • 85.1%
PPI /points per inch/
  • 282 PPI
  • 403 PPI
Camera and Video
Camera and Video — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Rear camera, main
  • 13 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 48 MP
  • f/2.0
  • (wide)
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide) -5 MP
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 32 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 32 MP
  • f/2.0
  • 25mm (wide)
Performance

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

Performance — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR GE8100
  • Mali-G72 MP3
Antutu 7 score *
  • 35722
  • 155874
GeekBench 4 Single Core * Unknown
  • 1688
GeekBench 4 Multi-Core * Unknown
  • 5446
Antutu 8 score * Unknown
  • 177562
GeekBench 5 Single Core * Unknown
  • 330
GeekBench 5 Multi-Core * Unknown
  • 1184
General specs
General specs — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Release date
  • 2018
  • March
  • 2019
  • August
Colors
  • Blue
  • Prism Crush Black
  • Prism Crush White
  • Prism Crush Green
  • Prism Crush Violet2
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 290 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)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 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 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
  • 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
  • GALILEO
  • 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
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Z91, Galaxy A50s.
SpecificationZ91Galaxy A50s
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - ANT+ - Fast battery charging 15W