Acer Liquid S1 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: 86 g lighter

    Liquid S1:
    195 g
    Billy 4:
    109 g
  • Width

    Billy 4: 18.6 mm narrower

    Liquid S1:
    83 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1.7 in smaller diagonal

    Liquid S1:
    5.7 in
    Billy 4:
    4 in
  • Chipset

    Liquid S1:
    Mediatek MT6589 (28 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Height

    Billy 4: 40.5 mm shorter

    Liquid S1:
    163 mm
    Billy 4:
    122.5 mm
  • Release year

    Liquid S1:
    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. Liquid S1

    Height:
    163 mm +40.5 mm versus Billy 4
    Width:
    83 mm +18.6 mm versus Billy 4
    Depth:
    9.6 mm
  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. Liquid S1

    195 g

    +86 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. Liquid S1

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

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

Liquid S1 has approximately 96.7% 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 Liquid S1, Billy 4, compared at the same storage capacity.
StorageLiquid S1Billy 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. Liquid S1

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

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. Liquid S1

    2400 mAh

    +1100 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. Liquid S12. Billy 4

Everyday essentials
Everyday essentials — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Dimensions (HxWxD)
  • 163 Х 83 Х 9.6 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 195 g
  • 109 g
Technology
  • TFT
  • TFT
Screen size
  • 5.7" inch
  • 4" inch
Screen resolution
  • 720 x 1280 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 32 GB (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2400 mAh
  • Removable Li-Po
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean); Float UI
  • Microsoft Windows Phone 8.1
Chipset
  • Mediatek MT6589 (28 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 89.6 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 66.2%
  • 57.7%
PPI /points per inch/
  • 258 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • Dual-LED flash
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP
  • 1.3 MP
Performance

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

Performance — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Processor CPU
  • Quad-core 1.5 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX544
  • Adreno 302
Antutu 7 score *
  • 16205
Unknown
General specs
General specs — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Release date
  • 2013
  • June
  • 2014
  • June
Colors
  • White
  • Black
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 320 EUR
Unknown
Battery life
  • Stand by time- Up to 450 h Talking time- Up to 11 h
  • 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 Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)-3G - HSDPA-4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • 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
  • Super AMOLED
  • 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 Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Radio
  • FM radio
  • Stereo FM radio
Others
  • DTS sound
Unknown
Other features
Other features — specifications for Liquid S1, Billy 4.
SpecificationLiquid S1Billy 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also available as Acer Liquid S1 Duo with dual-SIM card slots
  • Sensors Accelerometer
  • proximity