Samsung Galaxy J8 vs vivo X20 Plus

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.

  • Width

    Galaxy J8: 4.4 mm narrower

    Galaxy J8:
    75.7 mm
    X20 Plus:
    80.1 mm
  • Screen diagonal

    Galaxy J8: 0.43 in smaller diagonal

    Galaxy J8:
    6 in
    X20 Plus:
    6.43 in
  • Chipset

    Galaxy J8:
    Qualcomm SDM450 Snapdragon 450 (14 nm)
    X20 Plus:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Depth

    X20 Plus: 0.7 mm thinner

    Galaxy J8:
    8.2 mm
    X20 Plus:
    7.5 mm
  • Height

    Galaxy J8: 6.1 mm shorter

    Galaxy J8:
    159.2 mm
    X20 Plus:
    165.3 mm
  • Release year

    Galaxy J8:
    2018
    X20 Plus:
    2017

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. Galaxy J8

    Height:
    159.2 mm
    Width:
    75.7 mm
    Depth:
    8.2 mm +0.7 mm versus X20 Plus
  2. 2. X20 Plus

    Height:
    165.3 mm +6.1 mm versus Galaxy J8
    Width:
    80.1 mm +4.4 mm versus Galaxy J8
    Depth:
    7.5 mm

Weight

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

  1. 1. Galaxy J8

    177 g

  2. 2. X20 Plus

    181.5 g

    +4.5 g versus Galaxy J8

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. Galaxy J8

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18.5:9
    Approximate rectangular screen area:
    91.4 cm²
  2. 2. X20 Plus

    Screen diagonal:
    6.43 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    106.7 cm²

X20 Plus has approximately 16.8% more rectangular screen area than Galaxy J8.

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.

Galaxy J8: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM

X20 Plus: Original memory entry

64 GB · 512GB 4GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Galaxy J8

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

2. X20 Plus

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. Galaxy J8

    3500 mAh

  2. 2. X20 Plus

    3900 mAh

    +400 mAh versus Galaxy J8

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. Galaxy J82. X20 Plus

Everyday essentials
Everyday essentials — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Dimensions (HxWxD)
  • 159.2 Х 75.7 Х 8.2 mm
  • 165.3 Х 80.1 Х 7.5 mm
Weight
  • 177 g
  • 181.5 g
Technology
  • Super AMOLED
  • Super AMOLED
Screen size
  • 6" inch
  • 6.43" inch
Screen resolution
  • 720 x 1480 px
  • 1080 x 2160 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 3900 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.0 (Oreo)
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8.0 (Oreo); Funtouch 3.2
Chipset
  • Qualcomm SDM450 Snapdragon 450 (14 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 91.4 cm2
  • 106.7 cm2
Screen format
  • 18.5:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 75.8%
  • 80.6%
PPI /points per inch/
  • 274 PPI
  • 376 PPI
Camera and Video

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

Camera and Video — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Rear camera, main
  • 16 MP
  • Dual
  • 12 MP
  • Dual
Camera specs
  • 16 MP
  • f/1.7
  • AF -5 MP
  • f/1.9
  • depth sensor
  • 12 MP
  • f/1.8
  • AF -5 MP
  • depth sensor
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 12 MP
  • Single
Specifications
  • 16 MP
  • f/1.9
  • 12 MP
  • f/2.0
DxOMark Main Score * Unknown
  • 90
DxOMark Photo * Unknown
  • 92
DxOMark Video * Unknown
  • 87
Performance

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

Performance — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Processor CPU
  • Octa-core 1.6 GHz Cortex-A53
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Adreno 506
  • Adreno 512
Antutu 7 score *
  • 57202
  • 142568
GeekBench 4 Single Core * Unknown
  • 4188
GeekBench 4 Multi-Core * Unknown
  • 11601
General specs
General specs — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Release date
  • 2018
  • May
  • 2017
  • September
Colors
  • Black
  • Gold
  • Blue
  • Purple
  • Matte Black
  • Gold
  • Rose Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 450 EUR
Battery life
  • Talking time- Up to 23 h (3G) Music play - Up to 112 h
Unknown
Body build
  • plastic body
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100) - J810Y/DS
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) LTE band 1(2100)
  • 8(900) - X20A Plus
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.57 W/kg (head) 1.18 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Radio
  • FM radio
  • recording
  • No
Others Unknown
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy J8, X20 Plus.
SpecificationGalaxy J8X20 Plus
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - Versions: J810F/DS (Global DS); J810G/DS (India); J810Y/DS (Asia) Also known as Samsung Galaxy On8 in India
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/4.5A