Lava X81 vs Vodafone Smart 4 power

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.

  • Screen diagonal

    Smart 4 power: 0.5 in smaller diagonal

    X81:
    5.5 in
    Smart 4 power:
    5 in
  • Depth

    X81: 0.6 mm thinner

    X81:
    8.9 mm
    Smart 4 power:
    9.5 mm
  • Height

    Smart 4 power: 14 mm shorter

    X81:
    155 mm
    Smart 4 power:
    141 mm
  • Release year

    X81:
    2016
    Smart 4 power:
    2014

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. X81

    Height:
    155 mm +14 mm versus Smart 4 power
    Width:
    71.8 mm
    Depth:
    8.9 mm
  2. 2. Smart 4 power

    Height:
    141 mm
    Width:
    71.4 mm
    Depth:
    9.5 mm +0.6 mm versus X81

Weight

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

  1. 1. X81

    158 g

  2. 2. Smart 4 power

    162 g

    +4 g versus X81

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. X81

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Smart 4 power

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

X81 has approximately 21% more rectangular screen area than Smart 4 power.

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 X81, Smart 4 power, compared at the same storage capacity.
StorageX81Smart 4 power
4 GB Not recorded 1 GB RAM
32 GB 2 GB RAM Not recorded

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. X81

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

2. Smart 4 power

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. X81

    2800 mAh

  2. 2. Smart 4 power

    3000 mAh

    +200 mAh versus X81

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. X812. Smart 4 power

Everyday essentials
Everyday essentials — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Dimensions (HxWxD)
  • 155 Х 71.8 Х 8.9 mm
  • 141 Х 71.4 Х 9.5 mm
Weight
  • 158 g
  • 162 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 720 x 1280 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 2 GB RAM
  • 4 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2800 mAh
  • Removable Li-Po
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • upgradable to 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Mediatek MT6582M (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 74.9%
  • 68.5%
PPI /points per inch/
  • 267 PPI
  • 220 PPI
Camera and Video
Camera and Video — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 5 MP
  • VGA
Performance

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

Performance — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Processor CPU
  • Quad-core
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
Antutu 7 score *
  • 29391
Unknown
General specs
General specs — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Release date
  • 2016
  • November
  • 2014
  • June
Colors
  • Blue
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 150 EUR
Communication and Connectivity
Communication and Connectivity — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.31 W/kg (head) 0.64 W/kg (body)
Music and Audio
Music and Audio — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Radio
  • FM radio
  • FM radio
  • RDS
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for X81, Smart 4 power.
SpecificationX81Smart 4 power
Dop
  • Sensors Accelerometer
  • proximity - For India
  • Sensors Accelerometer
  • proximity