Lava Z81 vs Samsung D730

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

    D730: 46 g lighter

    Z81:
    141 g
    D730:
    95 g
  • Width

    D730: 25 mm narrower

    Z81:
    73 mm
    D730:
    48 mm
  • Screen diagonal

    D730: 3.9 in smaller diagonal

    Z81:
    5.7 in
    D730:
    1.8 in
  • Depth

    Z81: 16.1 mm thinner

    Z81:
    7.9 mm
    D730:
    24 mm
  • Height

    D730: 57.2 mm shorter

    Z81:
    152.2 mm
    D730:
    95 mm
  • Release year

    Z81:
    2018
    D730:
    2005

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 +57.2 mm versus D730
    Width:
    73 mm +25 mm versus D730
    Depth:
    7.9 mm
  2. 2. D730

    Height:
    95 mm
    Width:
    48 mm
    Depth:
    24 mm +16.1 mm versus Z81

Weight

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

  1. 1. Z81

    141 g

    +46 g versus D730

  2. 2. D730

    95 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Z81

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. D730

    D730: Screen geometry unavailable or conflicting.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Z81: Original memory entry

32 GB · 3 GB RAM 16 GB · 2 GB RAM

D730: Original memory entry

18 MB

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. D730

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC-micro

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

    +2000 mAh versus D730

  2. 2. D730

    1000 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. D730

Everyday essentials
Everyday essentials — specifications for Z81, D730.
SpecificationZ81D730
Dimensions (HxWxD)
  • 152.2 Х 73 Х 7.9 mm
  • 95 Х 48 Х 24 mm
Weight
  • 141 g
  • 95 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.7" inch
  • 1.8" inch
Screen resolution
  • 720 x 1440 px
  • 176 x 220 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
  • 18 MB
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • MMC-micro
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 1000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Symbian
  • Series 60 UI
Chipset
  • Mediatek MT6761 Helio A22 (12 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Z81, D730.
SpecificationZ81D730
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 256K
Screen area
  • 83.8 cm2
  • 10.2 cm2
Screen format
  • 18:9 (height:width)
Unknown
Screen to body ratio
  • 75.5%
  • 22.4%
PPI /points per inch/
  • 282 PPI
  • 0 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Z81, D730.
SpecificationZ81D730
Rear camera, main
  • 13 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • 1.3 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0 MP,
Specifications
  • 13 MP
  • f/2.0
Unknown
Performance

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

Performance — specifications for Z81, D730.
SpecificationZ81D730
Processor CPU
  • Quad-core 2.0 GHz Cortex-A53
  • TI 192 MHz
Graphics processor GPU
  • PowerVR GE8320
Unknown
Antutu 7 score *
  • 55328
Unknown
General specs
General specs — specifications for Z81, D730.
SpecificationZ81D730
Release date
  • 2018
  • October
  • 2005
  • Q1
Colors
  • black/blue
  • Gold/Black
Unknown
Battery life Unknown
  • Stand by time- Up to 285 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Z81, D730.
SpecificationZ81D730
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
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)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 1.01 W/kg (head)
Music and Audio
Music and Audio — specifications for Z81, D730.
SpecificationZ81D730
Radio
  • FM radio
  • No
Others Unknown
  • Second external TFT display
  • 65K colors (96 x 96 pixels)
Other features
Other features — specifications for Z81, D730.
SpecificationZ81D730
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Infrared port - MP3/AAC/MPEG player -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -SyncML -Predictive text input -Voice memo -Voice command -Organizer