Allview A4 Duo vs Lenovo K3 Note

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

    A4 Duo: 39.4 g lighter

    A4 Duo:
    110.6 g
    K3 Note:
    150 g
  • Width

    A4 Duo: 13 mm narrower

    A4 Duo:
    63.2 mm
    K3 Note:
    76.2 mm
  • Screen diagonal

    A4 Duo: 2 in smaller diagonal

    A4 Duo:
    3.5 in
    K3 Note:
    5.5 in
  • Depth

    K3 Note: 4 mm thinner

    A4 Duo:
    12 mm
    K3 Note:
    8 mm
  • Height

    A4 Duo: 36.5 mm shorter

    A4 Duo:
    116.1 mm
    K3 Note:
    152.6 mm
  • Release year

    A4 Duo:
    2013
    K3 Note:
    2015

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. A4 Duo

    Height:
    116.1 mm
    Width:
    63.2 mm
    Depth:
    12 mm +4 mm versus K3 Note
  2. 2. K3 Note

    Height:
    152.6 mm +36.5 mm versus A4 Duo
    Width:
    76.2 mm +13 mm versus A4 Duo
    Depth:
    8 mm

Weight

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

  1. 1. A4 Duo

    110.6 g

  2. 2. K3 Note

    150 g

    +39.4 g versus A4 Duo

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. A4 Duo

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. K3 Note

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

K3 Note has approximately 128.6% more rectangular screen area than A4 Duo.

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 A4 Duo, K3 Note, compared at the same storage capacity.
StorageA4 DuoK3 Note
16 GB Unknown 2 GB RAM
A4 Duo: Original memory entry

512 MB RAM - Liquid M2208 GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A4 Duo

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details panorama

2. K3 Note

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (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. A4 Duo

    1200 mAh

  2. 2. K3 Note

    3000 mAh

    +1800 mAh versus A4 Duo

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. A4 Duo2. K3 Note

Everyday essentials
Everyday essentials — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Dimensions (HxWxD)
  • 116.1 Х 63.2 Х 12 mm
  • 152.6 Х 76.2 Х 8 mm
Weight
  • 110.6 g
  • 150 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 5.5" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB RAM - Liquid M2208 GB
  • 16 GB
  • 2 GB RAM
Memory card support
  • panorama
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Android 5.2 (Lollipop)
  • upgradable to 6 (Marshmallow)
Chipset Unknown
  • Mediatek MT6752 (28 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 36.5 cm2
  • 83.4 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 149.7 g
  • 71.7%
PPI /points per inch/
  • 165 PPI
  • 401 PPI
Screen protection Unknown
  • Asahi Dragontrail Glass
Camera and Video
Camera and Video — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • AF
  • f/2.0
Functions Unknown
  • Dual-LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications
  • Super AMOLED
  • 5 MP
  • f/2.4
Performance

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

Performance — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Processor CPU
  • Dual-core 1.0 GHz Cotex-A7
  • Octa-core 1.7 GHz Cortex-A53
Graphics processor GPU
  • Mali-400MP2 Z525 -Mali-T720MP2 Z528
  • Mali-T760MP2
Antutu 7 score *
  • 11698
  • 46822
GeekBench 4 Single Core * Unknown
  • 728
GeekBench 4 Multi-Core * Unknown
  • 2898
GeekBench 4 RenderScript * Unknown
  • 2147
General specs
General specs — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Release date
  • 2013
  • November
  • 2015
  • March
Colors
  • Black
  • Onyx Black
  • Pearl White
  • Laser Yellow
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 80 EUR
  • 150 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 8 h 20 min
  • Stand by time- Up to 750 h (3G) Talking time- Up to 36 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
SIM card
  • Dual SIM (dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - India -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 2100 - India -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA
  • TD-SCDMA
  • LTE
  • TD-LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi Direct
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • panorama
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Radio
  • FM radio
  • FM radio
Others Unknown
  • Dolby Atmos audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A4 Duo, K3 Note.
SpecificationA4 DuoK3 Note
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass - Also known as Lenovo A7000 Turbo in India