Allview V2 Viper S vs Lava X28

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.

  • Width

    V2 Viper S: 3.5 mm narrower

    V2 Viper S:
    74.5 mm
    X28:
    78 mm
  • Depth

    V2 Viper S: 0.8 mm thinner

    V2 Viper S:
    8.2 mm
    X28:
    9 mm
  • Height

    V2 Viper S: 9 mm shorter

    V2 Viper S:
    146 mm
    X28:
    155 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. V2 Viper S

    Height:
    146 mm
    Width:
    74.5 mm
    Depth:
    8.2 mm
    Weight:
    141.6 g
  2. 2. X28

    Height:
    155 mm +9 mm versus V2 Viper S
    Width:
    78 mm +3.5 mm versus V2 Viper S
    Depth:
    9 mm +0.8 mm versus V2 Viper S
    Weight:
    Unknown

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. V2 Viper S

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. X28

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

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 V2 Viper S, X28, compared at the same storage capacity.
StorageV2 Viper SX28
8 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. V2 Viper S

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

2. X28

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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. V2 Viper S

    3000 mAh

    +400 mAh versus X28

  2. 2. X28

    2600 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. V2 Viper S2. X28

Everyday essentials
Everyday essentials — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Dimensions (HxWxD)
  • 146 Х 74.5 Х 8.2 mm
  • 155 Х 78 Х 9 mm
Weight
  • 141.6 g
  • 0 g
Technology
  • LTPS IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5.5" inch
Screen resolution
  • 1080 x 1920 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
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Removable Li-Po
  • 2600 mAh
  • Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 6.0 (Marshmallow)
Chipset
  • Mediatek MT6753 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 76.7%
  • 69.0%
PPI /points per inch/
  • 401 PPI
  • 267 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Rear camera, main
  • 16 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 16 MP
  • PDAF & laser AF
  • f/2.0
  • 8 MP
Functions
  • Dual-LED flash
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 5 MP
  • 5 MP
Performance

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

Performance — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Quad-core 1.3 GHz
Graphics processor GPU
  • Mali-T720MP2
Unknown
Antutu 7 score * Unknown
  • 25142
General specs
General specs — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Release date
  • 2016
  • October
  • 2016
  • September
Colors
  • Gray
  • Gold
  • Black/Gold
Battery life
  • Stand by time- Up to 210 h (3G) Talking time- Up to 14 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM
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 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for V2 Viper S, X28.
SpecificationV2 Viper SX28
Dop
  • Sensors Accelerometer
  • proximity
  • compass - Acer Liquid Zest Z525 with 3G Acer Liquid Zest 4G Z528 with 3G/LTE
  • Infrared port - Fast battery charging (Pump Express 2.0+) - For metroPCS
  • Sensors Accelerometer
  • proximity - For India