Celkon A66 vs HTC One S9

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

    A66: 60 g lighter

    A66:
    98 g
    One S9:
    158 g
  • Width

    A66: 2.5 mm narrower

    A66:
    67.2 mm
    One S9:
    69.7 mm
  • Screen diagonal

    A66: 0.5 in smaller diagonal

    A66:
    4.5 in
    One S9:
    5 in
  • Depth

    One S9: 0.9 mm thinner

    A66:
    11 mm
    One S9:
    10.1 mm
  • Height

    A66: 8.6 mm shorter

    A66:
    136 mm
    One S9:
    144.6 mm
  • Release year

    A66:
    2014
    One S9:
    2016

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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +0.9 mm versus One S9
  2. 2. One S9

    Height:
    144.6 mm +8.6 mm versus A66
    Width:
    69.7 mm +2.5 mm versus A66
    Depth:
    10.1 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. One S9

    158 g

    +60 g versus A66

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. A66

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. One S9

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

One S9 has approximately 23.5% more rectangular screen area than A66.

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 A66, One S9, compared at the same storage capacity.
StorageA66One S9
16 GB Unknown 2 GB RAM
A66: Original memory entry

4 GB · 512 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. A66

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

2. One S9

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 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. A66

    2000 mAh

  2. 2. One S9

    2840 mAh

    +840 mAh versus A66

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. A662. One S9

Everyday essentials
Everyday essentials — specifications for A66, One S9.
SpecificationA66One S9
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 144.6 Х 69.7 Х 10.1 mm
Weight
  • 98 g
  • 158 g
Technology
  • TFT
  • Super LCD
Screen size
  • 4.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2840 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 6.0 (Marshmallow); Sense UI
Chipset Unknown
  • Mediatek MT6795 Helio X10 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, One S9.
SpecificationA66One S9
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.1%
  • 68.4%
PPI /points per inch/
  • 218 PPI
  • 441 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for A66, One S9.
SpecificationA66One S9
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • f/2.0
  • 28mm (wide)
  • OIS
  • AF
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 4 MP
  • Single
Specifications
  • VGA
  • 4 MP
  • f/2.0
  • 27mm (wide)
  • 1/3''
  • 2µm
Performance

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

Performance — specifications for A66, One S9.
SpecificationA66One S9
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR G6200
Antutu 7 score * Unknown
  • 48256
GeekBench 4 Single Core * Unknown
  • 792
GeekBench 4 Multi-Core * Unknown
  • 3028
General specs
General specs — specifications for A66, One S9.
SpecificationA66One S9
Release date
  • 2014
  • 2016
  • April
Colors
  • White
  • Black
  • Silver
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 210 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 658 h (3G) Talking time- Up to 13 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A66, One S9.
SpecificationA66One S9
SIM card
  • Dual SIM
  • Nano-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.1
  • A2DP
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, One S9.
SpecificationA66One S9
Radio
  • FM radio
  • FM radio
Others Unknown
  • Dolby Audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A66, One S9.
SpecificationA66One S9
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass