Xiaomi Mi 4c vs Yezz Billy 4

Compare recorded specifications, size and practical differences.

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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: 23 g lighter

    Mi 4c:
    132 g
    Billy 4:
    109 g
  • Width

    Billy 4: 5.2 mm narrower

    Mi 4c:
    69.6 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 1 in smaller diagonal

    Mi 4c:
    5 in
    Billy 4:
    4 in
  • Chipset

    Mi 4c:
    Qualcomm MSM8992 Snapdragon 808 (20 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Depth

    Mi 4c: 2.1 mm thinner

    Mi 4c:
    7.8 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 15.6 mm shorter

    Mi 4c:
    138.1 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. Mi 4c

    Height:
    138.1 mm +15.6 mm versus Billy 4
    Width:
    69.6 mm +5.2 mm versus Billy 4
    Depth:
    7.8 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +2.1 mm versus Mi 4c

Weight

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

  1. 1. Mi 4c

    132 g

    +23 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. Mi 4c

    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

Mi 4c 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Mi 4c: Original memory entry

16 GB · 2 GB RAM32 GB · 3 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. Mi 4c

NFC:
Unknown
Headphone jack:
Yes
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. Mi 4c

    3080 mAh

    +1780 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. Mi 4c2. Billy 4

Everyday essentials
Everyday essentials — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Dimensions (HxWxD)
  • 138.1 Х 69.6 Х 7.8 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 132 g
  • 109 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" 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
  • 2 GB RAM32 GB
  • 3 GB 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.
  • 3080 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1.1 (Lollipop)
  • upgradable to 7.0 (Nougat); MIUI 10
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm MSM8992 Snapdragon 808 (20 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 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
  • 71.7%
  • 57.7%
PPI /points per inch/
  • 441 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Rear camera, main
  • 13 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 24mm (wide)
  • 1/3''
  • 1.12µm
  • PDAF
  • 8 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 5 MP
  • f/2.0
  • 1.3 MP
Performance

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

Performance — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Processor CPU
  • Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 418
  • Adreno 302
Antutu 7 score *
  • 67156
Unknown
GeekBench 4 Single Core *
  • 1076
Unknown
GeekBench 4 Multi-Core *
  • 2127
Unknown
GeekBench 4 RenderScript *
  • 2425
Unknown
GeekBench 4 Battery *
  • 973
Unknown
GeekBench 5 Single Core *
  • 201
Unknown
GeekBench 5 Multi-Core *
  • 480
Unknown
General specs
General specs — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Release date
  • 2015
  • September
  • 2014
  • June
Colors
  • White
  • Grey
  • Pink
  • Yellow
  • Blue
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 210 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
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
SIM card
  • Dual SIM
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • LTE Cat4 150/50 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
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 4.1
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Radio
  • No
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Mi 4c, Billy 4.
SpecificationMi 4cBilly 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging: 40% in 60 min (Quick Charge 2.0)
  • Sensors Accelerometer
  • proximity