Mitac MIO Explora K75 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: 6 g lighter

    MIO Explora K75:
    115 g
    Billy 4:
    109 g
  • Width

    MIO Explora K75: 2.9 mm narrower

    MIO Explora K75:
    61.5 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    MIO Explora K75: 0.5 in smaller diagonal

    MIO Explora K75:
    3.5 in
    Billy 4:
    4 in
  • Chipset

    MIO Explora K75:
    Qualcomm MSM7201A
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Depth

    Billy 4: 2 mm thinner

    MIO Explora K75:
    11.9 mm
    Billy 4:
    9.9 mm
  • Height

    MIO Explora K75: 7.2 mm shorter

    MIO Explora K75:
    115.3 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. MIO Explora K75

    Height:
    115.3 mm
    Width:
    61.5 mm
    Depth:
    11.9 mm +2 mm versus Billy 4
  2. 2. Billy 4

    Height:
    122.5 mm +7.2 mm versus MIO Explora K75
    Width:
    64.4 mm +2.9 mm versus MIO Explora K75
    Depth:
    9.9 mm

Weight

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

  1. 1. MIO Explora K75

    115 g

    +6 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. MIO Explora K75

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    34.9 cm²
  2. 2. Billy 4

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

Billy 4 has approximately 30.6% more rectangular screen area than MIO Explora K75.

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.

MIO Explora K75: Original memory entry

128 MB RAM · 256 MB ROM

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. MIO Explora K75

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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. MIO Explora K75

    1000 mAh

  2. 2. Billy 4

    1300 mAh

    +300 mAh versus MIO Explora K75

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. MIO Explora K752. Billy 4

Everyday essentials
Everyday essentials — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Dimensions (HxWxD)
  • 115.3 Х 61.5 Х 11.9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 115 g
  • 109 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 4" inch
Screen resolution
  • 240 x 400 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1000 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Windows Mobile 6.1 Professional
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm MSM7201A
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 34.9 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 49.2%
  • 57.7%
PPI /points per inch/
  • 133 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • VGA videocall camera
  • 1.3 MP
Performance
Performance — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Processor CPU
  • 528 MHz ARM 11
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 130
  • Adreno 302
General specs
General specs — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Release date
  • 2009
  • June
  • 2014
  • June
Colors
  • Black
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h 30 min
  • 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 MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
SIM card
  • 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
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • Qualcomm gpsOne
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Radio
  • No
  • Stereo FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for MIO Explora K75, Billy 4.
SpecificationMIO Explora K75Billy 4
Dop
  • Sensors Accelerometer
  • Infrared port - MIO Spirit Mobile navigation -MP3/MP4 player -Organizer -Pocket Office -Voice memo/dial
  • Sensors Accelerometer
  • proximity