TECNO Phantom 8 vs vivo Y55s

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

    Y55s: 43 g lighter

    Phantom 8:
    185 g
    Y55s:
    142 g
  • Width

    Y55s: 6.6 mm narrower

    Phantom 8:
    79.5 mm
    Y55s:
    72.9 mm
  • Screen diagonal

    Y55s: 0.5 in smaller diagonal

    Phantom 8:
    5.7 in
    Y55s:
    5.2 in
  • Chipset

    Phantom 8:
    Mediatek MT6757T Helio P25 (16 nm)
    Y55s:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Rear camera layout

    Phantom 8:
    Dual
    Y55s:
    Single
  • Height

    Y55s: 12.1 mm shorter

    Phantom 8:
    160 mm
    Y55s:
    147.9 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. Phantom 8

    Height:
    160 mm +12.1 mm versus Y55s
    Width:
    79.5 mm +6.6 mm versus Y55s
    Depth:
    7.9 mm
  2. 2. Y55s

    Height:
    147.9 mm
    Width:
    72.9 mm
    Depth:
    7.5 mm

Weight

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

  1. 1. Phantom 8

    185 g

    +43 g versus Y55s

  2. 2. Y55s

    142 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. Phantom 8

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    89.6 cm²
  2. 2. Y55s

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

Phantom 8 has approximately 20.2% more rectangular screen area than Y55s.

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 Phantom 8, Y55s, compared at the same storage capacity.
StoragePhantom 8Y55s
64 GB 6 GB RAM Unknown
Y55s: Original memory entry

16 GB · 2/3 GB 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. Y55s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

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. Phantom 8

    3500 mAh

    +770 mAh versus Y55s

  2. 2. Y55s

    2730 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. Y55s

Everyday essentials
Everyday essentials — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Dimensions (HxWxD)
  • 160 Х 79.5 Х 7.9 mm
  • 147.9 Х 72.9 Х 7.5 mm
Weight
  • 185 g
  • 142 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 5.2" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 6 GB RAM
  • 16 GB
  • 2/3 GB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 2730 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 6 (Marshmallow); Funtouch 3
Chipset
  • Mediatek MT6757T Helio P25 (16 nm)
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 89.6 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 70.4%
  • 69.1%
PPI /points per inch/
  • 386 PPI
  • 282 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Rear camera, main
  • 12 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 12 MP
  • f/2.0
  • PDAF -13 MP
  • f/2.6
  • 13 MP
  • AF
  • f/2.2
Functions
  • Dual-LED dual-tone flash
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Processor CPU
  • Octa-core (4x2.6 GHz Cortex-A53 & 4x1.6 GHz Cortex-A53)
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Mali-T880MP2
  • Adreno 306
Antutu 7 score * Unknown
  • 32622
GeekBench 4 Single Core * Unknown
  • 648
GeekBench 4 Multi-Core * Unknown
  • 1831
GeekBench 4 RenderScript * Unknown
  • 1230
Antutu 8 score *
  • 65232
Unknown
General specs
General specs — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Release date
  • 2018
  • April
  • 2017
  • February
Colors
  • Galaxy Blue
  • Champagne Gold
  • Phantom Black
  • Crown Gold
  • Rose Gold
  • Space Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
SIM card
  • Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 40(2300) - Malaysia
  • Vietnam LTE band 1(2100)
  • 8(900) - Thailand
  • Indonesia
  • Myanmar
  • Philippines LTE band 1(2100)
  • 40(2300) - India
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Phantom 8, Y55s.
SpecificationPhantom 8Y55s
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging
  • Sensors Accelerometer
  • proximity
  • compass