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Allview V4 Viper Pro vs Nokia N91

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

      N91: 27.6 g lighter

      V4 Viper Pro:
      191.6 g
      N91:
      164 g

    • Width

      N91: 26.8 mm narrower

      V4 Viper Pro:
      82 mm
      N91:
      55.2 mm

    • Screen diagonal

      N91: 4.7 in smaller diagonal

      V4 Viper Pro:
      6.8 in
      N91:
      2.1 in

    • Depth

      V4 Viper Pro: 13.2 mm thinner

      V4 Viper Pro:
      8.8 mm
      N91:
      22 mm

    • Height

      N91: 57.9 mm shorter

      V4 Viper Pro:
      171 mm
      N91:
      113.1 mm

    • Release year

      V4 Viper Pro:
      2020
      N91:
      2005

    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 +57.9 mm versus N91
      Width:
      82 mm +26.8 mm versus N91
      Depth:
      8.8 mm

    2. 2. N91

      Height:
      113.1 mm
      Width:
      55.2 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

      +27.6 g versus N91

    2. 2. N91

      164 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.

    At least two phones need compatible screen dimensions for a drawing.

    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. N91

      N91: Screen geometry unavailable or conflicting.

    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, N91, compared at the same storage capacity.
    StorageV4 Viper ProN91
    32 GB 2 GB RAM Unknown
    N91: Original memory entry

    4/8 GB · 64 MB RAM

    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. N91

    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. V4 Viper Pro

      3500 mAh

      +2600 mAh versus N91

    2. 2. N91

      900 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. N91

    Everyday essentials
    Everyday essentials — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Dimensions (HxWxD)
    • 171 Х 82 Х 8.8 mm
    • 113.1 Х 55.2 Х 22 mm
    Weight
    • 191.6 g
    • 164 g
    Technology
    • IPS LCD
    • TFT
    Screen size
    • 6.8" inch
    • 2.1" inch
    Screen resolution
    • 640 x 1352 px
    • 176 x 208 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 32GB 2GB RAM
    • 4/8 GB
    • 64 MB RAM
    Memory card support
    • microSD
    • up to 128 GB (uses shared SIM slot)
    • No
    Battery Capacity is not battery life. No endurance test is implied.
    • 3500 mAh
    • Non-removable Li-Po
    • 900 mAh
    • Removable Li-Ion
    Operating system OS
    • Android 9.0 (Pie)
    • Symbian 9.1
    • Series 60 UI 3rd Edition
    Chipset
    • Mediatek MT6739 (28 nm)
    		 Unknown
    NFC
    • Super AMOLED
    		 Unknown
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Touchscreen
    • capacitive touchscreen
    		 Unknown
    Display colors
    • 16M
    • 256K
    Screen area
    • 115.4 cm2
    • 14.0 cm2
    Screen format
    • 19:9 (height:width)
    		 Unknown
    Screen to body ratio
    • 82.3%
    • 22.5%
    PPI /points per inch/
    • 220 PPI
    • 0 PPI
    Camera and Video
    Camera and Video — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Rear camera, main
    • 13 MP
    • Dual-LED flash
    • 2 MP
    • Single
    Camera specs
    • 13 MP
    • AF -0.3 MP
    • (ultrawide/depth sensor)
    • 2 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, N91.
    SpecificationV4 Viper ProN91
    Processor CPU
    • Quad-core 1.3 GHz Cortex-A53
    • 220 MHz Dual ARM 9
    Graphics processor GPU
    • PowerVR GE8100
    		 Unknown
    General specs
    General specs — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Release date
    • 2020
    • January
    • 2005
    • Q2
    Colors
    • Dark Grey
    • Light Blue Chrome
    • Dark Gray Chrome
    • Black (Music Edition)
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 170 EUR
    • 230 EUR
    Battery life Unknown
    • Stand by time- Up to 190 h (2G) / 170 h (3G) Talking time- Up to 4 h (2G) / 3 h (3G) Music play - Up to 10 h
    Communication and Connectivity
    Communication and Connectivity — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    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)
    • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
    Speed
    • HSPA 21.1/5.76 Mbps
    • LTE Cat4 150/50 Mbps
    • Yes
    • 384 kbps
    GPRS
    • Yes
    • Class 10
    Edge
    • Yes
    • Class 10
    Wi-Fi
    • Wi-Fi 802.11 b/g/n
    • hotspot
    • Wi-Fi 802.11b/g
    GPS
    • Yes
    • with A-GPS
    • GLONASS
    • No
    USB
    • microUSB 2.0
    • miniUSB 2.0
    Bluetooth
    • 4.0
    • A2DP
    • 1.2 (A2DP - 8 GB version only)
    Harmful irradiation
    • SAR EU - 1.20 W/kg (head)
    • SAR - 0.74 W/kg (head) 0.58 W/kg (body) SAR EU - 0.48 W/kg (head)
    Music and Audio
    Music and Audio — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Radio
    • FM radio
    • Stereo FM radio
    Others Unknown
    • 5-way configurable navigation key
    Other features
    Other features — specifications for V4 Viper Pro, N91.
    SpecificationV4 Viper ProN91
    Dop
    • Sensors Fingerprint (rear-mounted)
    • Sensors Accelerometer
    • proximity - Battery charging 10W - For Europe
    • Predictive text input -Voice dial -Voice memo -Organizer