Xiaomi Black Shark 2 Pro 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: 96 g lighter

    Black Shark 2 Pro:
    205 g
    Billy 4:
    109 g
  • Width

    Billy 4: 10.6 mm narrower

    Black Shark 2 Pro:
    75 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 2.39 in smaller diagonal

    Black Shark 2 Pro:
    6.39 in
    Billy 4:
    4 in
  • Chipset

    Black Shark 2 Pro:
    Qualcomm SM8150 Snapdragon 855+ (7 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Rear camera layout

    Black Shark 2 Pro:
    Dual
    Billy 4:
    Single
  • Depth

    Black Shark 2 Pro: 1.1 mm thinner

    Black Shark 2 Pro:
    8.8 mm
    Billy 4:
    9.9 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. Black Shark 2 Pro

    Height:
    163.6 mm +41.1 mm versus Billy 4
    Width:
    75 mm +10.6 mm versus Billy 4
    Depth:
    8.8 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +1.1 mm versus Black Shark 2 Pro

Weight

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

  1. 1. Black Shark 2 Pro

    205 g

    +96 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. Black Shark 2 Pro

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²
  2. 2. Billy 4

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

Black Shark 2 Pro has approximately 120.1% 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 Black Shark 2 Pro, Billy 4, compared at the same storage capacity.
StorageBlack Shark 2 ProBilly 4
128 GB 8 / 12 GB RAM Alternative RAM configurations Unknown
256 GB 12 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. Black Shark 2 Pro

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

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. Black Shark 2 Pro

    4000 mAh

    +2700 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. Black Shark 2 Pro2. Billy 4

Everyday essentials
Everyday essentials — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Dimensions (HxWxD)
  • 163.6 Х 75 Х 8.8 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 205 g
  • 109 g
Technology
  • AMOLED
  • TFT
Screen size
  • 6.39" inch
  • 4" inch
Screen resolution
  • 1080 x 2340 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 8GB RAM
  • 128GB 12GB RAM
  • 256GB 12GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm SM8150 Snapdragon 855+ (7 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 100.2 cm2
  • 45.5 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 81.7%
  • 57.7%
PPI /points per inch/
  • 403 PPI
  • 233 PPI
Camera and Video

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

Camera and Video — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Rear camera, main
  • 48 MP
  • Dual
  • 8 MP
  • Single
Camera specs
  • 48 MP
  • f/1.8
  • (wide)
  • 1/2''
  • 0.8µm
  • PDAF -12 MP
  • f/2.2
  • (telephoto)
  • 1.0µm
  • PDAF
  • 2x optical zoom
  • 8 MP
  • AF
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • (wide)
  • 1/3"
  • 0.9μm
  • 1.3 MP
DxOMark Main Score *
  • 84
Unknown
DxOMark Photo *
  • 84
Unknown
DxOMark Video *
  • 85
Unknown
Performance

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

Performance — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Processor CPU
  • Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 640 (700 MHz)
  • Adreno 302
Antutu 7 score *
  • 379221
Unknown
Antutu 8 score *
  • 403242
Unknown
General specs
General specs — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Release date
  • 2019
  • July
  • 2014
  • June
Colors
  • Shadow Black
  • Iceberg Grey
  • Gulf Blue
  • Streamer Purple
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 550 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)
Body build
  • Front glass
  • aluminum body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (5CA) Cat18 1200/150 Mbps
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • aptX HD
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Radio
  • No
  • Stereo FM radio
Others
  • DCI-P3 109% -Always-on display -240Hz touch-sensing
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Black Shark 2 Pro, Billy 4.
SpecificationBlack Shark 2 ProBilly 4
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 27W
  • Sensors Accelerometer
  • proximity