verykool sl5009 Jet vs Yezz Billy 4

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

    Billy 4: 56 g lighter

    sl5009 Jet:
    165 g
    Billy 4:
    109 g
  • Width

    Billy 4: 8.1 mm narrower

    sl5009 Jet:
    72.5 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1 in smaller diagonal

    sl5009 Jet:
    5 in
    Billy 4:
    4 in
  • Chipset

    sl5009 Jet:
    Mediatek MT6735M (28 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Depth

    sl5009 Jet: 1 mm thinner

    sl5009 Jet:
    8.9 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 24.5 mm shorter

    sl5009 Jet:
    147 mm
    Billy 4:
    122.5 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. sl5009 Jet

    Height:
    147 mm +24.5 mm versus Billy 4
    Width:
    72.5 mm +8.1 mm versus Billy 4
    Depth:
    8.9 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +1 mm versus sl5009 Jet

Weight

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

  1. 1. sl5009 Jet

    165 g

    +56 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. sl5009 Jet

    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

sl5009 Jet 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.

Recorded RAM for sl5009 Jet, Billy 4, compared at the same storage capacity.
Storagesl5009 JetBilly 4
8 GB 1 GB RAM Unknown
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. sl5009 Jet

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. sl5009 Jet

    1900 mAh

    +600 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. sl5009 Jet2. Billy 4

Everyday essentials
Everyday essentials — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Dimensions (HxWxD)
  • 147 Х 72.5 Х 8.9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 165 g
  • 109 g
Technology
  • IPS LCD
  • 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.
  • 8 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1900 mAh
  • Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Microsoft Windows Phone 8.1
Chipset
  • Mediatek MT6735M (28 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 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
  • 64.6%
  • 57.7%
PPI /points per inch/
  • 196 PPI
  • 233 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 720p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 1.3 MP
  • 1.3 MP
Performance
Performance — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Processor CPU
  • Quad-core 1.1 GHz Cortex-A53
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-T720MP2
  • Adreno 302
General specs
General specs — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Release date
  • 2015
  • September
  • 2014
  • June
Colors
  • Black
  • Blue
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Battery life
  • Stand by time- Up to 240 h (3G) Talking time- Up to 8 h (3G)
  • 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 sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 17(700)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • 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 Direct
  • hotspot
  • 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
  • 4.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.44 W/kg (head) 0.98 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Radio
  • Stereo FM radio
  • Stereo FM radio
Other features
Other features — specifications for sl5009 Jet, Billy 4.
Specificationsl5009 JetBilly 4
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity