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TECNO Phantom 8 vs Yezz Billy 4

Compare recorded specifications, size and practical differences.

Yezz Billy 4

Yezz Billy 4

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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.

  • WeightBilly 4: 76 g lighterBilly 4: 109 g · Phantom 8: 185 g
  • WidthBilly 4: 15.1 mm narrowerBilly 4: 64.4 mm · Phantom 8: 79.5 mm
  • Screen diagonalBilly 4: 1.7 in smaller diagonalBilly 4: 4 in · Phantom 8: 5.7 in
  • ChipsetMediatek MT6757T Helio P25 (16 nm) / Qualcomm MSM8212 Snapdragon 200 (28 nm)Phantom 8: Mediatek MT6757T Helio P25 (16 nm) · Billy 4: Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Rear camera layoutDual / SinglePhantom 8: Dual · Billy 4: Single
  • DepthPhantom 8: 2 mm thinnerPhantom 8: 7.9 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.

Front
Phantom 8: 160 × 79.5 mm 1 Billy 4: 122.5 × 64.4 mm 2
Side
Phantom 8: 160 × 7.9 mm 1 Billy 4: 122.5 × 9.9 mm 2
  1. 1. Phantom 8
    Height
    160 mm+37.5 mm versus Billy 4
    Width
    79.5 mm+15.1 mm versus Billy 4
    Depth
    7.9 mm
    Weight
    185 g
  2. 2. Billy 4
    Height
    122.5 mm
    Width
    64.4 mm
    Depth
    9.9 mm+2 mm versus Phantom 8
    Weight
    109 g
Weight

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

  1. 1. Phantom 8185 g

    +76 g versus Billy 4

  2. 2. Billy 4109 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.

Screen size
Phantom 8: 5.7 in, 16:9, About 89.6 cm² rectangular area 1 Billy 4: 4 in, 5:3, About 45.5 cm² rectangular area 2
  1. 1. Phantom 8 5.7 in · 16:9 About 89.6 cm² rectangular area
  2. 2. Billy 4 4 in · 5:3 About 45.5 cm² rectangular area

Phantom 8 has approximately 96.7% 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 by storage capacity and phone
StoragePhantom 8Billy 4
64 GB 6 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. Phantom 8

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSD · up to 256 GB

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 capacity

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

  1. 1. Phantom 83500 mAh

    +2200 mAh versus Billy 4

  2. 2. Billy 41300 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. Phantom 82. Billy 4

Everyday essentials
Everyday essentials
SpecificationPhantom 8Billy 4
Dimensions (HxWxD)
  • 160 Х 79.5 Х 7.9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 185 g
  • 109 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.7" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 6 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 256 GB
BatteryCapacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Microsoft Windows Phone 8.1
Chipset
  • Mediatek MT6757T Helio P25 (16 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationPhantom 8Billy 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 89.6 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 70.4%
  • 57.7%
PPI /points per inch/
  • 386 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video
SpecificationPhantom 8Billy 4
Rear camera, main
  • 12 MP
  • Dual
  • 8 MP
  • Single
Camera specs
  • 12 MP
  • f/2.0
  • PDAF -13 MP
  • f/2.6
  • 8 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 1.3 MP
Performance
Performance
SpecificationPhantom 8Billy 4
Processor CPU
  • Octa-core (4x2.6 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-T880MP2
  • Adreno 302
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 65232
Unknown
General specs
General specs
SpecificationPhantom 8Billy 4
Release date
  • 2018
  • April
  • 2014
  • June
Colors
  • Galaxy Blue
  • Champagne Gold
  • Phantom Black
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
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)
Communication and Connectivity
Communication and Connectivity
SpecificationPhantom 8Billy 4
SIM card
  • Dual SIM (Micro-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 -3G - HSDPA 850 / 900 / 1800 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 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
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio
SpecificationPhantom 8Billy 4
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features
SpecificationPhantom 8Billy 4
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • proximity

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