Allview X4 Xtreme vs vivo V15 Pro

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 Xtreme:
    LCD
    V15 Pro:
    OLED
  • Weight

    V15 Pro: 41.9 g lighter

    X4 Xtreme:
    226.9 g
    V15 Pro:
    185 g
  • Width

    V15 Pro: 8.6 mm narrower

    X4 Xtreme:
    83.3 mm
    V15 Pro:
    74.7 mm
  • Screen diagonal

    X4 Xtreme: 0.39 in smaller diagonal

    X4 Xtreme:
    6 in
    V15 Pro:
    6.39 in
  • Chipset

    X4 Xtreme:
    Mediatek MT6757T Helio P25 (16 nm)
    V15 Pro:
    Qualcomm SDM675 Snapdragon 675 (11 nm)
  • Depth

    V15 Pro: 0.9 mm thinner

    X4 Xtreme:
    9.1 mm
    V15 Pro:
    8.2 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. X4 Xtreme

    Height:
    166.4 mm +9.1 mm versus V15 Pro
    Width:
    83.3 mm +8.6 mm versus V15 Pro
    Depth:
    9.1 mm +0.9 mm versus V15 Pro
  2. 2. V15 Pro

    Height:
    157.3 mm
    Width:
    74.7 mm
    Depth:
    8.2 mm

Weight

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

  1. 1. X4 Xtreme

    226.9 g

    +41.9 g versus V15 Pro

  2. 2. V15 Pro

    185 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. X4 Xtreme

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    99.2 cm²
  2. 2. V15 Pro

    V15 Pro: Screen geometry unavailable or conflicting.

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 Xtreme: Original memory entry

up to 64 GB (dedicated slot) · 512GB 4GB

V15 Pro: Original memory entry

128 GB · 6/8 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 Xtreme

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

2. V15 Pro

NFC:
See details Yes (market dependent)
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. X4 Xtreme

    4550 mAh

    +850 mAh versus V15 Pro

  2. 2. V15 Pro

    3700 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. X4 Xtreme2. V15 Pro

Everyday essentials
Everyday essentials — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Dimensions (HxWxD)
  • 166.4 Х 83.3 Х 9.1 mm
  • 157.3 Х 74.7 Х 8.2 mm
Weight
  • 226.9 g
  • 185 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6" inch
  • 6.39" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 2316 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)
  • 512GB 4GB
  • 128 GB
  • 6/8 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4550 mAh
  • Non-removable Li-Po
  • 3700 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 7.0 (Nougat)
  • Android 9.0 (Pie)
Chipset
  • Mediatek MT6757T Helio P25 (16 nm)
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
NFC
  • Super AMOLED
  • Yes (market dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 99.2 cm2
  • 98.9 cm2
Screen format
  • 16:9 (height:width)
Unknown
Screen to body ratio
  • 146.1 Х 71.6 Х 9.9 mm
  • 84.2%
PPI /points per inch/
  • 367 PPI
  • 404 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 48 MP
  • Triple
Camera specs
  • 13 MP
  • PDAF -5 MP
  • (ultrawide/depth sensor)
  • 48 MP
  • f/1.8
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide) -5 MP
  • f/2.4
  • depth sensor
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 32 MP
  • Single
Specifications
  • 20 MP
  • Motorized pop-up 32 MP
  • f/2.0
Performance

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

Performance — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Processor CPU
  • Octa-core (4x2.5 GHz Cortex-A53 & 4x1.4 GHz Cortex-A53)
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
Graphics processor GPU
  • Mali-T880MP2
  • Adreno 612
Antutu 7 score *
  • 58758
Unknown
Antutu 8 score * Unknown
  • 213905
GeekBench 5 Single Core * Unknown
  • 500
GeekBench 5 Multi-Core * Unknown
  • 1573
General specs
General specs — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Release date
  • 2017
  • June
  • 2019
  • February
Colors
  • Mocha Gold
  • Topaz Blue
  • Coral Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 360 EUR
Battery life
  • Stand by time- Up to 379 h Talking time- Up to 25 h
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
SIM card
  • Hybrid Dual SIM (Micro-SIM/Nano SIM)
  • 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 / 1900 / 2100-4G - LTE band 1(2100)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
  • LTE-A
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
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • LE
  • EDR
  • aptX
Harmful irradiation
  • SAR EU - 1.01 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Radio
  • FM radio
Unknown
Others Unknown
  • DCI-P3 100% coverage
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for X4 Xtreme, V15 Pro.
SpecificationX4 XtremeV15 Pro
Dop
  • Sensors Fingerprint (front-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For Europe
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W (24% in 15 min)