Allview A4 Duo vs BLU G9

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: 54.4 g lighter

    A4 Duo:
    110.6 g
    G9:
    165 g
  • Width

    A4 Duo: 8.6 mm narrower

    A4 Duo:
    63.2 mm
    G9:
    71.8 mm
  • Screen diagonal

    A4 Duo: 2.8 in smaller diagonal

    A4 Duo:
    3.5 in
    G9:
    6.3 in
  • Rear camera layout

    A4 Duo:
    Single
    G9:
    Dual
  • Depth

    G9: 4 mm thinner

    A4 Duo:
    12 mm
    G9:
    8 mm
  • Height

    A4 Duo: 39.3 mm shorter

    A4 Duo:
    116.1 mm
    G9:
    155.4 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. A4 Duo

    Height:
    116.1 mm
    Width:
    63.2 mm
    Depth:
    12 mm +4 mm versus G9
  2. 2. G9

    Height:
    155.4 mm +39.3 mm versus A4 Duo
    Width:
    71.8 mm +8.6 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. G9

    165 g

    +54.4 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. G9

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    99.1 cm²

G9 has approximately 171.6% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A4 Duo: Original memory entry

512 MB RAM - Liquid M2208 GB

G9: Original memory entry

64 GB · 512GB 4GB

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. G9

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. A4 Duo

    1200 mAh

  2. 2. G9

    4000 mAh

    +2800 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. G9

Everyday essentials
Everyday essentials — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Dimensions (HxWxD)
  • 116.1 Х 63.2 Х 12 mm
  • 155.4 Х 71.8 Х 8 mm
Weight
  • 110.6 g
  • 165 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 6.3" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1520 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
  • 64 GB
  • 512GB 4GB
Memory card support
  • panorama
  • microSD
  • up to 128 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Android 9.0 (Pie)
Chipset Unknown
  • Mediatek MT6762 Helio P22 (12 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • Super AMOLED
  • 16M
Screen area
  • 36.5 cm2
  • 99.1 cm2
Screen format
  • 3:2 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 149.7 g
  • 88.8%
PPI /points per inch/
  • 165 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 2 MP
  • 13 MP
  • f/2.0
  • 1/3''
  • PDAF -2 MP
  • depth sensor
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 13 MP
  • Single
Specifications
  • Super AMOLED
  • 13 MP
  • f/2.0
  • 1/3''
Performance

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

Performance — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Processor CPU
  • Dual-core 1.0 GHz Cotex-A7
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Mali-400MP2 Z525 -Mali-T720MP2 Z528
  • PowerVR GE8320
Antutu 7 score *
  • 11698
  • 74326
General specs
General specs — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Release date
  • 2013
  • November
  • 2019
  • May
Colors
  • Black
  • Black
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 80 EUR
  • 180 USD
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 8 h 20 min
  • Stand by time- Up to 750 h (2G) / Up to 650 h (3G) Talking time- Up to 30 h (2G) / Up to 24 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
SIM card
  • Dual SIM (dual stand-by)
  • Dual SIM (Micro-SIM/Nano-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 -3G - HSDPA 850 / 1700(AWS) / 1900 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 28(700)
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 42.2/11.5 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
  • hotspot
  • Wi-Fi Direct
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • panorama
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A4 Duo, G9.
SpecificationA4 DuoG9
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass