Allview X4 Soul Infinity Plus vs Xiaomi Mi 8

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.

  • Display technology

    OLED versus LCD

    X4 Soul Infinity Plus:
    LCD
    Mi 8:
    OLED
  • Weight

    X4 Soul Infinity Plus: 19 g lighter

    X4 Soul Infinity Plus:
    156 g
    Mi 8:
    175 g
  • Screen diagonal

    X4 Soul Infinity Plus: 0.21 in smaller diagonal

    X4 Soul Infinity Plus:
    6 in
    Mi 8:
    6.21 in
  • Chipset

    X4 Soul Infinity Plus:
    Mediatek MT6757 Helio P25 (16 nm)
    Mi 8:
    Qualcomm SDM845 Snapdragon 845 (10 nm)
  • Height

    Mi 8: 3.8 mm shorter

    X4 Soul Infinity Plus:
    158.7 mm
    Mi 8:
    154.9 mm
  • Release year

    X4 Soul Infinity Plus:
    2017
    Mi 8:
    2018

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. X4 Soul Infinity Plus

    Height:
    158.7 mm +3.8 mm versus Mi 8
    Width:
    75.2 mm
    Depth:
    8 mm
  2. 2. Mi 8

    Height:
    154.9 mm
    Width:
    74.8 mm
    Depth:
    7.6 mm

Weight

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

  1. 1. X4 Soul Infinity Plus

    156 g

  2. 2. Mi 8

    175 g

    +19 g versus X4 Soul Infinity Plus

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. X4 Soul Infinity Plus

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.9 cm²
  2. 2. Mi 8

    Screen diagonal:
    6.21 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.3 cm²

Mi 8 has approximately 3.6% more rectangular screen area than X4 Soul Infinity Plus.

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.

X4 Soul Infinity Plus: Original memory entry

up to 64 GB (dedicated slot) · 6 GB RAM

Mi 8: Original memory entry

64/128/256 GB · 6 GB RAM 128 GB · 8 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. X4 Soul Infinity Plus

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 slot)

2. Mi 8

NFC:
Yes
Headphone jack:
No
Memory card support:
No

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. X4 Soul Infinity Plus

    3050 mAh

  2. 2. Mi 8

    3400 mAh

    +350 mAh versus X4 Soul Infinity Plus

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. X4 Soul Infinity Plus2. Mi 8

Everyday essentials
Everyday essentials — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Dimensions (HxWxD)
  • 158.7 Х 75.2 Х 8 mm
  • 154.9 Х 74.8 Х 7.6 mm
Weight
  • 156 g
  • 175 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6" inch
  • 6.21" inch
Screen resolution
  • 1080 x 2160 px
  • 1080 x 2248 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • up to 64 GB (dedicated slot)
  • 6 GB RAM
  • 64/128/256 GB
  • 6 GB RAM 128 GB
  • 8 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3050 mAh
  • Non-removable Li-Po
  • 3400 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 7.1 (Nougat)
  • Android 8.1 (Oreo)
  • upgradable to Android 9.0 (Pie); MIUI 10.1
Chipset
  • Mediatek MT6757 Helio P25 (16 nm)
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 92.9 cm2
  • 97.1 cm2
Screen format
  • 18:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 151.9 Х 77.8 Х 9.5 mm
  • 83.8%
PPI /points per inch/
  • 402 PPI
  • 402 PPI
Screen protection
  • Corning Gorilla Glass (unspecified version)
  • Corning Gorilla Glass 5
Camera and Video

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

Camera and Video — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 12 MP
  • Dual
Camera specs
  • 13 MP
  • 1/3''
  • 1.12µm
  • PDAF -5 MP
  • (ultrawide/depth sensor)
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • 4-axis OIS
  • dual pixel PDAF -12 MP
  • f/2.4
  • 56mm (telephoto)
  • 1/3.4''
  • 1.0µm
  • AF
  • 2x optical zoom
Functions
  • Dual-LED flash
  • Dual-LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 20 MP
  • Single
Specifications
  • 13 MP
  • 20 MP
  • f/2.0
  • 0.9μm
DxOMark Main Score * Unknown
  • 99
DxOMark Photo * Unknown
  • 105
DxOMark Video * Unknown
  • 88
Performance

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

Performance — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Processor CPU
  • Octa-core (4x2.4 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
  • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
Graphics processor GPU
  • Mali-T880MP2
  • Adreno 630
Antutu 7 score *
  • 39502
  • 297023
GeekBench 4 Single Core * Unknown
  • 2280
GeekBench 4 Multi-Core * Unknown
  • 8242
GeekBench 4 RenderScript * Unknown
  • 13089
Antutu 8 score * Unknown
  • 353884
GeekBench 4 Battery * Unknown
  • 3965
GeekBench 5 Single Core * Unknown
  • 447
GeekBench 5 Multi-Core * Unknown
  • 1898
General specs
General specs — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Release date
  • 2017
  • September
  • 2018
  • May
Colors
  • Black
  • Black
  • Blue
  • White
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 450 EUR
  • 380 EUR
Body build Unknown
  • Front/back glass (Gorilla Glass 5)
  • aluminum frame (7000 series)
Communication and Connectivity
Communication and Connectivity — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -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)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (4CA) Cat16 1024/150 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • Super AMOLED
  • 5.0
  • A2DP
  • LE
  • aptX HD
Harmful irradiation
  • SAR EU - 1.65 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
  • HDR10 -DCI-P3
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for X4 Soul Infinity Plus, Mi 8.
SpecificationX4 Soul Infinity PlusMi 8
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Infrared face recognition
  • fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • barometer
  • compass - Fast battery charging (Quick Charge 4.0+)