Celkon A20 vs HTC One M9s

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Screen diagonal

    A20: 1 in smaller diagonal

    A20:
    4 in
    One M9s:
    5 in
  • Release year

    A20:
    2013
    One M9s:
    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. A20

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

  2. 2. One M9s

    Height:
    144.6 mm
    Width:
    69.7 mm
    Depth:
    9.6 mm
    Weight:
    158 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.

  1. 1. A20

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. One M9s

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

One M9s has approximately 51.3% more rectangular screen area than A20.

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 A20, One M9s, compared at the same storage capacity.
StorageA20One M9s
16 GB Unknown 2 GB RAM
A20: Original memory entry

256 MB · 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. A20

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

2. One M9s

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. A20

    1500 mAh

  2. 2. One M9s

    2840 mAh

    +1340 mAh versus A20

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. A202. One M9s

Everyday essentials
Everyday essentials — specifications for A20, One M9s.
SpecificationA20One M9s
Dimensions (HxWxD)
  • Х Х mm
  • 144.6 Х 69.7 Х 9.6 mm
Weight
  • 0 g
  • 158 g
Technology
  • TFT
  • Super LCD3
Screen size
  • 4" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 512 MB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 2840 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2.0 (Jelly Bean)
  • Android 5.1 (Lollipop); Sense UI 7
Chipset Unknown
  • Mediatek MT6795 Helio X10 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A20, One M9s.
SpecificationA20One M9s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 68.4%
PPI /points per inch/
  • 233 PPI
  • 441 PPI
Screen protection Unknown
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for A20, One M9s.
SpecificationA20One M9s
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 Unknown
  • 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
Performance — specifications for A20, One M9s.
SpecificationA20One M9s
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 2.2 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR G6200
General specs
General specs — specifications for A20, One M9s.
SpecificationA20One M9s
Release date
  • 2013
  • August
  • 2015
  • November
Colors
  • Black
  • Dazzling Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 60 EUR
  • 270 EUR
Communication and Connectivity
Communication and Connectivity — specifications for A20, One M9s.
SpecificationA20One M9s
SIM card
  • Dual SIM (Mini-SIM)
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • 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) - EMEA
Speed
  • Yes
  • 384 kbps
  • HSPA
  • LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • Yes
  • 4.1
  • A2DP
  • aptX
Harmful irradiation
  • SAR EU - 0.88 W/kg (head) 0.60 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A20, One M9s.
SpecificationA20One M9s
Radio Unknown
  • FM radio
Others Unknown
  • 24-bit/192kHz audio -Dolby audio enhancement -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A20, One M9s.
SpecificationA20One M9s
Dop
  • Sensors Proximity
  • gyro
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass