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Allview Viper E vs Oppo A71 (2018)

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.

  • WeightViper E: 14.5 g lighterViper E: 122.5 g · A71 (2018): 137 g
  • WidthViper E: 8.8 mm narrowerViper E: 65 mm · A71 (2018): 73.8 mm
  • Screen diagonalViper E: 0.7 in smaller diagonalViper E: 4.5 in · A71 (2018): 5.2 in
  • ChipsetMediatek MT6582 (28 nm) / Qualcomm SDM450 Snapdragon 450 (14 nm)Viper E: Mediatek MT6582 (28 nm) · A71 (2018): Qualcomm SDM450 Snapdragon 450 (14 nm)
  • HeightViper E: 17.1 mm shorterViper E: 131 mm · A71 (2018): 148.1 mm
  • Release year2014 / 2018Viper E: 2014 · A71 (2018): 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.

Front
Viper E: 131 × 65 mm 1 A71 (2018): 148.1 × 73.8 mm 2
Side
Viper E: 131 × 7.8 mm 1 A71 (2018): 148.1 × 7.6 mm 2
  1. 1. Viper E
    Height
    131 mm
    Width
    65 mm
    Depth
    7.8 mm
    Weight
    122.5 g
  2. 2. A71 (2018)
    Height
    148.1 mm
    Width
    73.8 mm
    Depth
    7.6 mm
    Weight
    137 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials
Everyday essentials
SpecificationViper EA71 (2018)
Dimensions (HxWxD)
  • 131 Х 65 Х 7.8 mm
  • 148.1 Х 73.8 Х 7.6 mm
Weight
  • 122.5 g
  • 137 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.2" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 16 GB
  • 2 GB RAM 3 GB RAM (India)
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 5.0 (Lollipop)
  • Android 7.1 (Nougat); ; ColorOS 3.2
Chipset
  • Mediatek MT6582 (28 nm)
  • Qualcomm SDM450 Snapdragon 450 (14 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationViper EA71 (2018)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 55.8 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 127.3 Х 65.5 Х 10 mm
  • 68.2%
PPI /points per inch/
  • 218 PPI
  • 282 PPI
Screen protection
  • Asahi Dragontrail Glass
Unknown
Camera and Video
Camera and Video
SpecificationViper EA71 (2018)
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 13 MP
  • f/2.2
  • 1/3''
  • 1.12µm
  • PDAF
Functions
  • Dual-LED flash
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
  • f/2.4
  • 1/4''
  • 1.4µm
Performance
Performance
SpecificationViper EA71 (2018)
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core 1.8 GHz Cortex-A53
Graphics processor GPU
  • Mali-400MP2 Z525 -Mali-T720MP2 Z528
  • Adreno 506
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 62789
General specs
General specs
SpecificationViper EA71 (2018)
Release date
  • 2014
  • September
  • 2018
  • February
Colors
  • Black
  • White
  • Gold
  • Black
  • Rose Gold
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer. Unknown
  • 130 EUR
Battery life
  • Stand by time- Up to 225 h Talking time- Up to 9 h 15 min
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity
SpecificationViper EA71 (2018)
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - UMTS 900 / 2100 / 850 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500) LTE band 1(2100)
  • 41(2500) - India
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.84 W/kg (head) 1.24 W/kg (body)
Unknown
Music and Audio
Music and Audio
SpecificationViper EA71 (2018)
Radio
  • FM radio
  • FM radio
Others
  • DTS sound -Yamaha amplifier
  • Active noise cancellation with dedicated mic
Other features
Other features
SpecificationViper EA71 (2018)
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity
  • compass