Yezz Billy 4 vs ZTE Star 1

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: 21 g lighter

    Billy 4:
    109 g
    Star 1:
    130 g
  • Width

    Billy 4: 4.6 mm narrower

    Billy 4:
    64.4 mm
    Star 1:
    69 mm
  • Screen diagonal

    Billy 4: 1 in smaller diagonal

    Billy 4:
    4 in
    Star 1:
    5 in
  • Chipset

    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
    Star 1:
    Qualcomm MSM8928 Snapdragon 400 (28 nm)
  • Depth

    Star 1: 3.3 mm thinner

    Billy 4:
    9.9 mm
    Star 1:
    6.6 mm
  • Height

    Billy 4: 16.5 mm shorter

    Billy 4:
    122.5 mm
    Star 1:
    139 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. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +3.3 mm versus Star 1
  2. 2. Star 1

    Height:
    139 mm +16.5 mm versus Billy 4
    Width:
    69 mm +4.6 mm versus Billy 4
    Depth:
    6.6 mm

Weight

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

  1. 1. Billy 4

    109 g

  2. 2. Star 1

    130 g

    +21 g versus Billy 4

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. Billy 4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Star 1

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

Star 1 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 Billy 4, Star 1, compared at the same storage capacity.
StorageBilly 4Star 1
16 GB Unknown 2 GB 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. Billy 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

2. Star 1

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. Billy 4

    1300 mAh

  2. 2. Star 1

    2300 mAh

    +1000 mAh versus Billy 4

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. Billy 42. Star 1

Everyday essentials
Everyday essentials — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Dimensions (HxWxD)
  • 122.5 Х 64.4 Х 9.9 mm
  • 139 Х 69 Х 6.6 mm
Weight
  • 109 g
  • 130 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 2300 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Phone 8.1
  • Android 4.4.2 (KitKat)
Chipset
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.7%
  • 71.9%
PPI /points per inch/
  • 233 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • Dual-LED dual-tone flash
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
Performance

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

Performance — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • Quad-core 1.6 GHz Cortex-A7
Graphics processor GPU
  • Adreno 302
  • Adreno 305
Antutu 7 score * Unknown
  • 19198
GeekBench 4 Single Core * Unknown
  • 361
GeekBench 4 Multi-Core * Unknown
  • 1118
General specs
General specs — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Release date
  • 2014
  • June
  • 2014
  • April
Colors
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
  • Pink
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Battery life
  • 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)
  • Stand by time- Up to 460 h Talking time- Up to 20 h
Communication and Connectivity
Communication and Connectivity — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
SIM card
  • Dual SIM (Micro-SIM)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 900 / 2100 -4G - LTE
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA
  • LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Radio
  • Stereo FM radio
  • FM radio
Others Unknown
  • Dolby Mobile -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Billy 4, Star 1.
SpecificationBilly 4Star 1
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity