Celkon A9 Dual vs Lenovo S660

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

    A9 Dual: 35 g lighter

    A9 Dual:
    116 g
    S660:
    151 g
  • Width

    A9 Dual: 4.9 mm narrower

    A9 Dual:
    63.9 mm
    S660:
    68.8 mm
  • Screen diagonal

    A9 Dual: 1.2 in smaller diagonal

    A9 Dual:
    3.5 in
    S660:
    4.7 in
  • Depth

    S660: 0.6 mm thinner

    A9 Dual:
    10.6 mm
    S660:
    10 mm
  • Height

    A9 Dual: 16.5 mm shorter

    A9 Dual:
    120.5 mm
    S660:
    137 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. A9 Dual

    Height:
    120.5 mm
    Width:
    63.9 mm
    Depth:
    10.6 mm +0.6 mm versus S660
  2. 2. S660

    Height:
    137 mm +16.5 mm versus A9 Dual
    Width:
    68.8 mm +4.9 mm versus A9 Dual
    Depth:
    10 mm

Weight

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

  1. 1. A9 Dual

    116 g

  2. 2. S660

    151 g

    +35 g versus A9 Dual

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. A9 Dual

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. S660

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

S660 has approximately 66.9% more rectangular screen area than A9 Dual.

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 A9 Dual, S660, compared at the same storage capacity.
StorageA9 DualS660
8 GB Unknown 1 GB RAM
A9 Dual: Original memory entry

512 MB · 256 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. A9 Dual

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

2. S660

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. A9 Dual

    1350 mAh

  2. 2. S660

    3000 mAh

    +1650 mAh versus A9 Dual

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. A9 Dual2. S660

Everyday essentials
Everyday essentials — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Dimensions (HxWxD)
  • 120.5 Х 63.9 Х 10.6 mm
  • 137 Х 68.8 Х 10 mm
Weight
  • 116 g
  • 151 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 4.7" inch
Screen resolution
  • 320 x 480 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Li-Ion
  • 3000 mAh
  • Removable Li-Po
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 4.2 (Jelly Bean)
Chipset Unknown
  • Mediatek MT6582M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 60.9 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 47.4%
  • 64.6%
PPI /points per inch/
  • 165 PPI
  • 234 PPI
Camera and Video
Camera and Video — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
  • AF
Functions Unknown
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA
  • VGA
Performance

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

Performance — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Processor CPU
  • Dual-core 1.0 GHz
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
Antutu 7 score * Unknown
  • 17122
GeekBench 4 Single Core * Unknown
  • 350
GeekBench 4 Multi-Core * Unknown
  • 1167
General specs
General specs — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Release date
  • 2014
  • 2014
  • February
Colors
  • White
  • Black
  • Titanium
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 170 EUR
Battery life
  • Stand by time- Up to 240 h Talking time- Up to 3 h 20 min
  • Stand by time- Up to 840 h (2G) / Up to 840 h (3G) Talking time- Up to 36 h (2G) / Up to 20 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A9 Dual, S660.
SpecificationA9 DualS660
SIM card
  • Dual SIM
  • Dual SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 1800 / 1900
Speed Unknown
  • HSPA 21.1/5.76 Mbps
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
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.61 W/kg (head) 0.69 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A9 Dual, S660.
SpecificationA9 DualS660
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity