Allview V4 Viper Pro vs Oppo A7x

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

    A7x: 22.6 g lighter

    V4 Viper Pro:
    191.6 g
    A7x:
    169 g
  • Width

    A7x: 8 mm narrower

    V4 Viper Pro:
    82 mm
    A7x:
    74 mm
  • Screen diagonal

    A7x: 0.5 in smaller diagonal

    V4 Viper Pro:
    6.8 in
    A7x:
    6.3 in
  • Chipset

    V4 Viper Pro:
    Mediatek MT6739 (28 nm)
    A7x:
    Mediatek MT6771 Helio P60 (12 nm)
  • Depth

    A7x: 0.8 mm thinner

    V4 Viper Pro:
    8.8 mm
    A7x:
    8 mm
  • Height

    A7x: 14.3 mm shorter

    V4 Viper Pro:
    171 mm
    A7x:
    156.7 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. V4 Viper Pro

    Height:
    171 mm +14.3 mm versus A7x
    Width:
    82 mm +8 mm versus A7x
    Depth:
    8.8 mm +0.8 mm versus A7x
  2. 2. A7x

    Height:
    156.7 mm
    Width:
    74 mm
    Depth:
    8 mm

Weight

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

  1. 1. V4 Viper Pro

    191.6 g

    +22.6 g versus A7x

  2. 2. A7x

    169 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. V4 Viper Pro

    Screen diagonal:
    6.8 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    115.4 cm²
  2. 2. A7x

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²

V4 Viper Pro has approximately 18.5% more rectangular screen area than A7x.

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 V4 Viper Pro, A7x, compared at the same storage capacity.
StorageV4 Viper ProA7x
32 GB 2 GB RAM Unknown
A7x: Original memory entry

128 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. V4 Viper Pro

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses shared SIM slot)

2. A7x

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. V4 Viper Pro

    3500 mAh

  2. 2. A7x

    3500 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. V4 Viper Pro2. A7x

Everyday essentials
Everyday essentials — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Dimensions (HxWxD)
  • 171 Х 82 Х 8.8 mm
  • 156.7 Х 74 Х 8 mm
Weight
  • 191.6 g
  • 169 g
Technology
  • IPS LCD
  • LTPS IPS LCD
Screen size
  • 6.8" inch
  • 6.3" inch
Screen resolution
  • 640 x 1352 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 2GB RAM
  • 128 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 128 GB (uses shared SIM slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 3500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie)
  • Android 8.1 (Oreo); ColorOS 5.2
Chipset
  • Mediatek MT6739 (28 nm)
  • Mediatek MT6771 Helio P60 (12 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 115.4 cm2
  • 97.4 cm2
Screen format
  • 19:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 82.3%
  • 84.0%
PPI /points per inch/
  • 220 PPI
  • 409 PPI
Screen protection Unknown
  • To be confirmed
Camera and Video
Camera and Video — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 16 MP
  • Dual
Camera specs
  • 13 MP
  • AF -0.3 MP
  • (ultrawide/depth sensor)
  • 16 MP
  • f/1.8
  • 1/3.1
  • 1.0µm
  • PDAF -2 MP
  • f/2.4
  • depth sensor
Functions
  • Dual-LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 8 MP
  • 16 MP
  • f/2.0
Performance

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

Performance — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR GE8100
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 140725
General specs
General specs — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Release date
  • 2020
  • January
  • 2018
  • September
Colors
  • Dark Grey
  • Starry Purple
  • Ice Flame Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 270 EUR
Communication and Connectivity
Communication and Connectivity — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
SIM card
  • 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)
  • 20(800)
  • 38(2600)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 2100 -4G - LTE
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat13 600/100 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 1.20 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for V4 Viper Pro, A7x.
SpecificationV4 Viper ProA7x
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • proximity - Battery charging 10W - For Europe
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W - For China