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Allview Viper E vs Oppo K1

Compare recorded specifications, size and practical differences.

Oppo K1

Oppo K1

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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 technologyOLED versus LCDViper E: LCD · K1: OLED
  • WeightViper E: 33.5 g lighterViper E: 122.5 g · K1: 156 g
  • WidthViper E: 10.5 mm narrowerViper E: 65 mm · K1: 75.5 mm
  • Screen diagonalViper E: 1.9 in smaller diagonalViper E: 4.5 in · K1: 6.4 in
  • ChipsetMediatek MT6582 (28 nm) / Qualcomm SDM660 Snapdragon 660 (14 nm)Viper E: Mediatek MT6582 (28 nm) · K1: Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Rear camera layoutSingle / DualViper E: Single · K1: Dual

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 K1: 158.3 × 75.5 mm 2
Side
Viper E: 131 × 7.8 mm 1 K1: 158.3 × 7.4 mm 2
  1. 1. Viper E
    Height
    131 mm
    Width
    65 mm
    Depth
    7.8 mm
    Weight
    122.5 g
  2. 2. K1
    Height
    158.3 mm
    Width
    75.5 mm
    Depth
    7.4 mm
    Weight
    156 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 EK1
Dimensions (HxWxD)
  • 131 Х 65 Х 7.8 mm
  • 158.3 Х 75.5 Х 7.4 mm
Weight
  • 122.5 g
  • 156 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 4.5" inch
  • 6.4" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 2340 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64 GB
  • 4/6 GB RAM
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
  • 3600 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 5.0 (Lollipop)
  • Android 8.1 (Oreo); ColorOS 5.2
Chipset
  • Mediatek MT6582 (28 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationViper EK1
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 55.8 cm2
  • 101.0 cm2
Screen format
  • 16:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 127.3 Х 65.5 Х 10 mm
  • 84.5%
PPI /points per inch/
  • 218 PPI
  • 402 PPI
Screen protection
  • Asahi Dragontrail Glass
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video
SpecificationViper EK1
Rear camera, main
  • 8 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 8 MP
  • AF
  • 16 MP
  • f/1.8
  • 1/2.8"
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • depth sensor
Functions
  • Dual-LED flash
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 25 MP
  • Single
Specifications
  • 2 MP
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Performance
Performance
SpecificationViper EK1
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Mali-400MP2 Z525 -Mali-T720MP2 Z528
  • Adreno 512
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied. Unknown
  • 140322
General specs
General specs
SpecificationViper EK1
Release date
  • 2014
  • September
  • 2018
  • October
Colors
  • Black
  • White
  • Blue
  • Red
  • Silver Green
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer. Unknown
  • 210 EUR
Battery life
  • Stand by time- Up to 225 h Talking time- Up to 9 h 15 min
Unknown
Communication and Connectivity
Communication and Connectivity
SpecificationViper EK1
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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.84 W/kg (head) 1.24 W/kg (body)
Unknown
Music and Audio
Music and Audio
SpecificationViper EK1
Radio
  • FM radio
  • No
Others
  • DTS sound -Yamaha amplifier
  • Active noise cancellation with dedicated mic
Other features
Other features
SpecificationViper EK1
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W