Allview V3 Viper vs Oppo R819

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

    R819: 33.6 g lighter

    V3 Viper:
    143.6 g
    R819:
    110 g
  • Width

    R819: 3.8 mm narrower

    V3 Viper:
    71.8 mm
    R819:
    68 mm
  • Screen diagonal

    R819: 0.8 in smaller diagonal

    V3 Viper:
    5.5 in
    R819:
    4.7 in
  • Chipset

    V3 Viper:
    Mediatek MT6737 (28 nm)
    R819:
    Mediatek MT6589 (28 nm)
  • Depth

    R819: 0.8 mm thinner

    V3 Viper:
    8.1 mm
    R819:
    7.3 mm
  • Height

    R819: 11.8 mm shorter

    V3 Viper:
    148.3 mm
    R819:
    136.5 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. V3 Viper

    Height:
    148.3 mm +11.8 mm versus R819
    Width:
    71.8 mm +3.8 mm versus R819
    Depth:
    8.1 mm +0.8 mm versus R819
  2. 2. R819

    Height:
    136.5 mm
    Width:
    68 mm
    Depth:
    7.3 mm

Weight

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

  1. 1. V3 Viper

    143.6 g

    +33.6 g versus R819

  2. 2. R819

    110 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. V3 Viper

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    78.1 cm²
  2. 2. R819

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

V3 Viper has approximately 28.2% more rectangular screen area than R819.

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 V3 Viper, R819, compared at the same storage capacity.
StorageV3 ViperR819
16 GB Not recorded 1 GB RAM
32 GB 3 GB RAM Not recorded

Practical features

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

1. V3 Viper

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

2. R819

NFC:
Unknown
Headphone jack:
Yes
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. V3 Viper

    3000 mAh

    +1000 mAh versus R819

  2. 2. R819

    2000 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. V3 Viper2. R819

Everyday essentials
Everyday essentials — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Dimensions (HxWxD)
  • 148.3 Х 71.8 Х 8.1 mm
  • 136.5 Х 68 Х 7.3 mm
Weight
  • 143.6 g
  • 110 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4.7" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 16 GB
  • 1 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.
  • 3000 mAh
  • Non-removable Li-Po
  • 2000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.0 (Oreo)
  • Android 4.2.1 (Jelly Bean)
Chipset
  • Mediatek MT6737 (28 nm)
  • Mediatek MT6589 (28 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 78.1 cm2
  • 60.9 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 143.3 Х 73.3 Х 9.2 mm
  • 65.6%
PPI /points per inch/
  • 293 PPI
  • 312 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Rear camera, main
  • 13 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • 8 MP
  • AF
Functions
  • Dual-LED flash
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 13 MP
  • Single
  • 1.9 MP
  • Single
Specifications
  • 13 MP
  • 1.9 MP
Performance

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

Performance — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-T720MP2
  • PowerVR SGX544
Antutu 7 score *
  • 30202
  • 13238
General specs
General specs — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Release date
  • 2018
  • January
  • 2013
  • August
Colors
  • Black
  • Sandy Silver
  • Gold
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 220 EUR
  • 250 EUR
Communication and Connectivity
Communication and Connectivity — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
SIM card
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
  • Dual 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 / 1900 / 2100-4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi Direct
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • Android 4.4.2 (KitKat)
  • A2DP
  • Super AMOLED
  • 3.0
Harmful irradiation
  • SAR EU - 1.26 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for V3 Viper, R819.
SpecificationV3 ViperR819
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • proximity
  • compass - Acer Liquid Zest Z525 with 3G Acer Liquid Zest 4G Z528 with 3G/LTE
  • Infrared port - For Europe
  • Sensors Accelerometer
  • gyro
  • proximity