Lava Iris 503e vs Yezz Billy 4

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

    Billy 4: 66 g lighter

    Iris 503e:
    175 g
    Billy 4:
    109 g
  • Width

    Billy 4: 8.9 mm narrower

    Iris 503e:
    73.3 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1 in smaller diagonal

    Iris 503e:
    5 in
    Billy 4:
    4 in
  • Depth

    Billy 4: 0.6 mm thinner

    Iris 503e:
    10.5 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 20.7 mm shorter

    Iris 503e:
    143.2 mm
    Billy 4:
    122.5 mm
  • Release year

    Iris 503e:
    2013
    Billy 4:
    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. Iris 503e

    Height:
    143.2 mm +20.7 mm versus Billy 4
    Width:
    73.3 mm +8.9 mm versus Billy 4
    Depth:
    10.5 mm +0.6 mm versus Billy 4
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm

Weight

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

  1. 1. Iris 503e

    175 g

    +66 g versus Billy 4

  2. 2. Billy 4

    109 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. Iris 503e

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Billy 4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Iris 503e has approximately 51.3% more rectangular screen area than Billy 4.

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.

Iris 503e: Original memory entry

4 GB · 512 MB RAM

Billy 4: Original memory entry

4 GB · 512 MB 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. Iris 503e

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

2. Billy 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Iris 503e

    2000 mAh

    +700 mAh versus Billy 4

  2. 2. Billy 4

    1300 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. Iris 503e2. Billy 4

Everyday essentials
Everyday essentials — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Dimensions (HxWxD)
  • 143.2 Х 73.3 Х 10.5 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 175 g
  • 109 g
Technology
  • TFT
  • TFT
Screen size
  • 5" inch
  • 4" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Microsoft Windows Phone 8.1
Chipset Unknown
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 65.6%
  • 57.7%
PPI /points per inch/
  • 196 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 1.3 MP
  • 1.3 MP
Performance
Performance — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Processor CPU
  • Dual-core 1.0 GHz
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-400
  • Adreno 302
General specs
General specs — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Release date
  • 2013
  • October
  • 2014
  • June
Colors
  • Black
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 350 h (2G) / Up to 300 h (3G) Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
SIM card
  • Dual SIM
  • Dual SIM (Micro-SIM)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed Unknown
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • Yes
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Iris 503e, Billy 4.
SpecificationIris 503eBilly 4
Dop
  • Sensors Accelerometer For India
  • Sensors Accelerometer
  • proximity