Sony Xperia Z2 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: 54 g lighter

    Xperia Z2:
    163 g
    Billy 4:
    109 g
  • Width

    Billy 4: 8.9 mm narrower

    Xperia Z2:
    73.3 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1.2 in smaller diagonal

    Xperia Z2:
    5.2 in
    Billy 4:
    4 in
  • Chipset

    Xperia Z2:
    Qualcomm MSM8974AB Snapdragon 801 (28 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Depth

    Xperia Z2: 1.7 mm thinner

    Xperia Z2:
    8.2 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 24.3 mm shorter

    Xperia Z2:
    146.8 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. Xperia Z2

    Height:
    146.8 mm +24.3 mm versus Billy 4
    Width:
    73.3 mm +8.9 mm versus Billy 4
    Depth:
    8.2 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +1.7 mm versus Xperia Z2

Weight

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

  1. 1. Xperia Z2

    163 g

    +54 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. Xperia Z2

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

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

Xperia Z2 has approximately 63.7% 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 Xperia Z2, Billy 4, compared at the same storage capacity.
StorageXperia Z2Billy 4
16 GB 3 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. Xperia Z2

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Xperia Z2

    3200 mAh

    +1900 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. Xperia Z22. Billy 4

Everyday essentials
Everyday essentials — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Dimensions (HxWxD)
  • 146.8 Х 73.3 Х 8.2 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 163 g
  • 109 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.2" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 3 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 6.0 (Marshmallow)
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm MSM8974AB Snapdragon 801 (28 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 74.5 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 69.3%
  • 57.7%
PPI /points per inch/
  • 424 PPI
  • 233 PPI
Screen protection
  • Shatter proof glass
Unknown
Camera and Video
Camera and Video — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Rear camera, main
  • 20.7 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 20.7 MP
  • f/2.0
  • 1/2.3''
  • 1.12µm
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 2.2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2.2 MP
  • 1.3 MP
Performance

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

Performance — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Processor CPU
  • Quad-core 2.3 GHz Krait 400
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 330
  • Adreno 302
Antutu 7 score *
  • 47102
Unknown
GeekBench 4 Single Core *
  • 954
Unknown
GeekBench 4 Multi-Core *
  • 2498
Unknown
GeekBench 4 RenderScript *
  • 2087
Unknown
General specs
General specs — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Release date
  • 2014
  • February
  • 2014
  • June
Colors
  • Black
  • White
  • Purple (D6502
  • D6503) / Black
  • White (D6543)
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
Unknown
Battery life
  • Stand by time- Up to 690 h (2G) / Up to 740 h (3G) Talking time- Up to 15 h (2G) / Up to 19 h (3G) Music play - Up to 120 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)
Body build
  • Front/back glass
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
SIM card
  • Micro-SIM
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - D6502
  • D6503
  • D6543 -3G - HSDPA 850 / 900 / 1700 / 1900 / 2100 - D6502
  • D6543 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 13(700)
  • 17(700)
  • 20(800) - D6503 LTE band 1(2100)
  • 8(900) - D6543
  • 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
  • Up to 107 kbps
  • Class 12
Edge
  • Up to 296 kbps
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • 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 (MHL TV-out)
  • USB Host; magnetic connector
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 1.34 W/kg (head) 0.82 W/kg (body) SAR EU - 0.38 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Radio
  • FM radio
  • RDS
  • Stereo FM radio
Others
  • Triluminos display -X-Reality Engine
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Xperia Z2, Billy 4.
SpecificationXperia Z2Billy 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer - Fast battery charging (Quick Charge 2.0) only Japanese version -ANT+ - IP58 dust proof and water resistant over 1.5 meter and 30 minutes
  • Sensors Accelerometer
  • proximity