Celkon A20 vs Oppo R9s Plus

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: 2 in smaller diagonal

    A20:
    4 in
    R9s Plus:
    6 in
  • Release year

    A20:
    2013
    R9s Plus:
    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. A20

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. R9s Plus

    Height:
    163.6 mm
    Width:
    80.8 mm
    Depth:
    7.4 mm
    Weight:
    185 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. R9s Plus

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

R9s Plus has approximately 117.9% 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, R9s Plus, compared at the same storage capacity.
StorageA20R9s Plus
64 GB Unknown 6 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. R9s Plus

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. R9s Plus

    4000 mAh

    +2500 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. R9s Plus

Everyday essentials
Everyday essentials — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Dimensions (HxWxD)
  • Х Х mm
  • 163.6 Х 80.8 Х 7.4 mm
Weight
  • 0 g
  • 185 g
Technology
  • TFT
  • AMOLED
Screen size
  • 4" inch
  • 6" 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
  • 64 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2.0 (Jelly Bean)
  • Android 6.1 (Marshmallow); ColorOS 3
Chipset Unknown
  • Qualcomm MSM8976 Pro Snapdragon 653 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 99.2 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 75.1%
PPI /points per inch/
  • 233 PPI
  • 367 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 3.15 MP
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • OIS
  • dual pixel PDAF
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA
  • 16 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 A20, R9s Plus.
SpecificationA20R9s Plus
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x1.95 GHz Cortex-A72 & 4x1.44 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Adreno 510
Antutu 7 score * Unknown
  • 99326
GeekBench 4 Single Core * Unknown
  • 1455
GeekBench 4 Multi-Core * Unknown
  • 4665
General specs
General specs — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Release date
  • 2013
  • August
  • 2016
  • October
Colors
  • Black
  • Black
  • Gold
  • Rose Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 60 EUR
  • 570 EUR
Communication and Connectivity
Communication and Connectivity — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
SIM card
  • Dual SIM (Mini-SIM)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -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)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • Yes
  • 384 kbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
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
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • Yes
  • 4.1
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.88 W/kg (head) 0.60 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Radio Unknown
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A20, R9s Plus.
SpecificationA20R9s Plus
Dop
  • Sensors Proximity
  • gyro
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (VOOC)