Allview V4 Viper Pro vs T-Mobile Sidekick LX

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

    Sidekick LX: 29.6 g lighter

    V4 Viper Pro:
    191.6 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 22 mm narrower

    V4 Viper Pro:
    82 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 3.8 in smaller diagonal

    V4 Viper Pro:
    6.8 in
    Sidekick LX:
    3 in
  • Depth

    V4 Viper Pro: 13.2 mm thinner

    V4 Viper Pro:
    8.8 mm
    Sidekick LX:
    22 mm
  • Height

    Sidekick LX: 41.5 mm shorter

    V4 Viper Pro:
    171 mm
    Sidekick LX:
    129.5 mm
  • Release year

    V4 Viper Pro:
    2020
    Sidekick LX:
    2007

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 +41.5 mm versus Sidekick LX
    Width:
    82 mm +22 mm versus Sidekick LX
    Depth:
    8.8 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm
    Width:
    60 mm
    Depth:
    22 mm +13.2 mm versus V4 Viper Pro

Weight

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

  1. 1. V4 Viper Pro

    191.6 g

    +29.6 g versus Sidekick LX

  2. 2. Sidekick LX

    162 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. Sidekick LX

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    25.6 cm²

V4 Viper Pro has approximately 350.5% more rectangular screen area than Sidekick LX.

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, Sidekick LX, compared at the same storage capacity.
StorageV4 Viper ProSidekick LX
32 GB 2 GB RAM Unknown
Sidekick LX: Original memory entry

64 MB RAM · 64 MB ROM

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. Sidekick LX

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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

    +1960 mAh versus Sidekick LX

  2. 2. Sidekick LX

    1540 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. Sidekick LX

Everyday essentials
Everyday essentials — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Dimensions (HxWxD)
  • 171 Х 82 Х 8.8 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 191.6 g
  • 162 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.8" inch
  • 3" inch
Screen resolution
  • 640 x 1352 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 2GB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 128 GB (uses shared SIM slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Danger OS
Chipset
  • Mediatek MT6739 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 115.4 cm2
  • 25.6 cm2
Screen format
  • 19:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 82.3%
  • 33.0%
PPI /points per inch/
  • 220 PPI
  • 155 PPI
Camera and Video
Camera and Video — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Rear camera, main
  • 13 MP
  • Dual-LED flash
  • 1.3 MP
  • Single
Camera specs
  • 13 MP
  • AF -0.3 MP
  • (ultrawide/depth sensor)
  • 1.3 MP
Functions
  • Dual-LED flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
Unknown
Performance
Performance — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
Unknown
Graphics processor GPU
  • PowerVR GE8100
Unknown
General specs
General specs — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Release date
  • 2020
  • January
  • 2007
  • September
Colors
  • Dark Grey
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 160 EUR
Battery life Unknown
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Communication and Connectivity
Communication and Connectivity — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-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)
Unknown
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR EU - 1.20 W/kg (head)
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Radio
  • FM radio
  • No
Other features
Other features — specifications for V4 Viper Pro, Sidekick LX.
SpecificationV4 Viper ProSidekick LX
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • proximity - Battery charging 10W - For Europe
  • MP3/WMA audio player -MP4 player -Voice memo