Allview W1s vs Lava X81

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.

  • Height

    W1s: 10.1 mm shorter

    W1s:
    144.9 mm
    X81:
    155 mm
  • Release year

    W1s:
    2014
    X81:
    2016

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. W1s

    Height:
    144.9 mm
    Width:
    72.1 mm
    Depth:
    8.8 mm
  2. 2. X81

    Height:
    155 mm +10.1 mm versus W1s
    Width:
    71.8 mm
    Depth:
    8.9 mm

Weight

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

  1. 1. W1s

    156.2 g

  2. 2. X81

    158 g

    +1.8 g versus W1s

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. W1s

    W1s: Screen geometry unavailable or conflicting.

  2. 2. X81

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

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 W1s, X81, compared at the same storage capacity.
StorageW1sX81
8 GB 1 GB RAM Not recorded
32 GB Not recorded 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. W1s

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. X81

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

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. W1s

    2000 mAh

  2. 2. X81

    2800 mAh

    +800 mAh versus W1s

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. W1s2. X81

Everyday essentials
Everyday essentials — specifications for W1s, X81.
SpecificationW1sX81
Dimensions (HxWxD)
  • 144.9 Х 72.1 Х 8.8 mm
  • 155 Х 71.8 Х 8.9 mm
Weight
  • 156.2 g
  • 158 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 720 x 1280 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Non-removable Li-Ion
  • 2800 mAh
  • Removable Li-Po
Operating system OS
  • Microsoft Windows Phone 8.1
  • Android 5.1 (Lollipop)
  • upgradable to 6.0 (Marshmallow)
Chipset
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for W1s, X81.
SpecificationW1sX81
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 66.0%
  • 74.9%
PPI /points per inch/
  • 294 PPI
  • 267 PPI
Screen protection
  • Asahi Dragontrail Glass
Unknown
Camera and Video
Camera and Video — specifications for W1s, X81.
SpecificationW1sX81
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • Dual-LED flash
  • panorama
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance

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

Performance — specifications for W1s, X81.
SpecificationW1sX81
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • Quad-core
Graphics processor GPU
  • Adreno 302
Unknown
Antutu 7 score * Unknown
  • 29391
General specs
General specs — specifications for W1s, X81.
SpecificationW1sX81
Release date
  • 2014
  • June
  • 2016
  • November
Colors
  • Black
  • Blue
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 8 h 20 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for W1s, X81.
SpecificationW1sX81
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-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)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • 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
  • EDR
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.44 W/kg (head) 0.41 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for W1s, X81.
SpecificationW1sX81
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for W1s, X81.
SpecificationW1sX81
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity - For India