Lava Z81 vs LG X screen

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

    X screen: 21 g lighter

    Z81:
    141 g
    X screen:
    120 g
  • Width

    X screen: 1.2 mm narrower

    Z81:
    73 mm
    X screen:
    71.8 mm
  • Screen diagonal

    X screen: 0.77 in smaller diagonal

    Z81:
    5.7 in
    X screen:
    4.93 in
  • Chipset

    Z81:
    Mediatek MT6761 Helio A22 (12 nm)
    X screen:
    Qualcomm MSM8916 Snapdragon 410 (28 nm)
  • Depth

    X screen: 0.8 mm thinner

    Z81:
    7.9 mm
    X screen:
    7.1 mm
  • Height

    X screen: 9.6 mm shorter

    Z81:
    152.2 mm
    X screen:
    142.6 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. Z81

    Height:
    152.2 mm +9.6 mm versus X screen
    Width:
    73 mm +1.2 mm versus X screen
    Depth:
    7.9 mm +0.8 mm versus X screen
  2. 2. X screen

    Height:
    142.6 mm
    Width:
    71.8 mm
    Depth:
    7.1 mm

Weight

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

  1. 1. Z81

    141 g

    +21 g versus X screen

  2. 2. X screen

    120 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. Z81

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

    Screen diagonal:
    4.93 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    67 cm²

Z81 has approximately 25.1% more rectangular screen area than X screen.

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 Z81, X screen, compared at the same storage capacity.
StorageZ81X screen
16 GB Unknown 2 GB RAM
Z81: Original memory entry

32 GB · 3 GB RAM 16 GB · 2 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. Z81

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

2. X screen

NFC:
See details Yes (market dependent)
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. Z81

    3000 mAh

    +700 mAh versus X screen

  2. 2. X screen

    2300 mAh

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. Z812. X screen

Everyday essentials
Everyday essentials — specifications for Z81, X screen.
SpecificationZ81X screen
Dimensions (HxWxD)
  • 152.2 Х 73 Х 7.9 mm
  • 142.6 Х 71.8 Х 7.1 mm
Weight
  • 141 g
  • 120 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 4.93" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
  • 16 GB
  • 2 GB 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
  • 2300 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 (Oreo)
  • Android 6.0 (Marshmallow)
Chipset
  • Mediatek MT6761 Helio A22 (12 nm)
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
NFC Unknown
  • Yes (market dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z81, X screen.
SpecificationZ81X screen
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 67.0 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 75.5%
  • 65.4%
PPI /points per inch/
  • 282 PPI
  • 298 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Z81, X screen.
SpecificationZ81X screen
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 13 MP
  • f/2.0
  • 8 MP
Performance

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

Performance — specifications for Z81, X screen.
SpecificationZ81X screen
Processor CPU
  • Quad-core 2.0 GHz Cortex-A53
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 306
Antutu 7 score *
  • 55328
  • 17853
General specs
General specs — specifications for Z81, X screen.
SpecificationZ81X screen
Release date
  • 2018
  • October
  • 2016
  • February
Colors
  • black/blue
  • Gold/Black
  • Black
  • White
  • Pink Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 120 h (2G) / Up to 120 h (3G) Talking time- Up to 9 h (2G) / Up to 14 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Z81, X screen.
SpecificationZ81X screen
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)
  • 8(900)
  • 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 - K500N -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - K500N LTE band 3(1800)
  • 20(800)
  • 38(2600) - K500DS
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR EU - 0.55 W/kg (head)
Music and Audio
Music and Audio — specifications for Z81, X screen.
SpecificationZ81X screen
Radio
  • FM radio
  • FM radio
Others Unknown
  • Secondary display
  • 80 x 520 pixels
  • 1.76 inches
Other features
Other features — specifications for Z81, X screen.
SpecificationZ81X screen
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Accelerometer
  • proximity - Versions: K500N (Europe); LG X view K500DS (Russia)