Xolo Q1000 Opus 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.

  • Width

    Billy 4: 8.5 mm narrower

    Q1000 Opus:
    72.9 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1 in smaller diagonal

    Q1000 Opus:
    5 in
    Billy 4:
    4 in
  • Depth

    Q1000 Opus: 0.9 mm thinner

    Q1000 Opus:
    9 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 20.8 mm shorter

    Q1000 Opus:
    143.3 mm
    Billy 4:
    122.5 mm
  • Release year

    Q1000 Opus:
    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. Q1000 Opus

    Height:
    143.3 mm +20.8 mm versus Billy 4
    Width:
    72.9 mm +8.5 mm versus Billy 4
    Depth:
    9 mm
    Weight:
    Unknown
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +0.9 mm versus Q1000 Opus
    Weight:
    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. Q1000 Opus

    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

Q1000 Opus 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 Q1000 Opus, Billy 4, compared at the same storage capacity.
StorageQ1000 OpusBilly 4
4 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. Q1000 Opus

NFC:
Unknown
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. Q1000 Opus

    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. Q1000 Opus2. Billy 4

Everyday essentials
Everyday essentials — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Dimensions (HxWxD)
  • 143.3 Х 72.9 Х 9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 0 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.
  • 4 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.
  • 2000 mAh
  • Removable Li-Po
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Microsoft Windows Phone 8.1
Chipset
  • BCM23550
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 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
  • 65.9%
  • 57.7%
PPI /points per inch/
  • 196 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • panorama
  • LED flash
Video
  • 720p@30fps
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • VGA
  • 1.3 MP
Performance
Performance — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Processor CPU
  • Quad-core 1.2 GHz
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Broadcom VideoCore IV
  • Adreno 302
General specs
General specs — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Release date
  • 2013
  • December
  • 2014
  • June
Colors
  • Black
  • White
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 100 EUR
Unknown
Battery life
  • Stand by time- Up to 700 h (2G) / Up to 526 h (3G) Talking time- Up to 18 h (2G) / Up to 11 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 Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
SIM card
  • Dual SIM (Mini-SIM)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.53 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Q1000 Opus, Billy 4.
SpecificationQ1000 OpusBilly 4
Dop
  • Sensors Accelerometer
  • proximity - For India
  • Sensors Accelerometer
  • proximity