Celkon A355 vs HTC Desire 820s dual sim

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

    A355: 57.5 g lighter

    A355:
    97.5 g
    Desire 820s dual sim:
    155 g
  • Width

    A355: 15.4 mm narrower

    A355:
    63.3 mm
    Desire 820s dual sim:
    78.7 mm
  • Screen diagonal

    A355: 2 in smaller diagonal

    A355:
    3.5 in
    Desire 820s dual sim:
    5.5 in
  • Chipset

    A355:
    Spreadtrum 7715
    Desire 820s dual sim:
    Mediatek MT6752 (28 nm)
  • Depth

    Desire 820s dual sim: 2.5 mm thinner

    A355:
    10.2 mm
    Desire 820s dual sim:
    7.7 mm
  • Height

    A355: 42.4 mm shorter

    A355:
    115.3 mm
    Desire 820s dual sim:
    157.7 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. A355

    Height:
    115.3 mm
    Width:
    63.3 mm
    Depth:
    10.2 mm +2.5 mm versus Desire 820s dual sim
  2. 2. Desire 820s dual sim

    Height:
    157.7 mm +42.4 mm versus A355
    Width:
    78.7 mm +15.4 mm versus A355
    Depth:
    7.7 mm

Weight

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

  1. 1. A355

    97.5 g

  2. 2. Desire 820s dual sim

    155 g

    +57.5 g versus A355

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. A355

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Desire 820s dual sim

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

Desire 820s dual sim has approximately 128.6% more rectangular screen area than A355.

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 A355, Desire 820s dual sim, compared at the same storage capacity.
StorageA355Desire 820s dual sim
16 GB Unknown 2 GB RAM
A355: 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. A355

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

2. Desire 820s dual sim

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. A355

    1200 mAh

  2. 2. Desire 820s dual sim

    2600 mAh

    +1400 mAh versus A355

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. A3552. Desire 820s dual sim

Everyday essentials
Everyday essentials — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Dimensions (HxWxD)
  • 115.3 Х 63.3 Х 10.2 mm
  • 157.7 Х 78.7 Х 7.7 mm
Weight
  • 97.5 g
  • 155 g
Technology Unknown
  • IPS LCD
Screen size
  • 3.5" inch
  • 5.5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 16 GB
  • 2 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.
  • 1200 mAh
  • Li-Ion
  • 2600 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 4.4.4 (KitKat); Sense UI 6
Chipset
  • Spreadtrum 7715
  • Mediatek MT6752 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 83.4 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 50.0%
  • 67.2%
PPI /points per inch/
  • 165 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • AF
Functions
  • Dual-LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
Performance

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

Performance — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Processor CPU
  • 1.0 GHz
  • Octa-core 1.7 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • Mali-T760MP2
Antutu 7 score * Unknown
  • 41825
GeekBench 4 Single Core * Unknown
  • 790
GeekBench 4 Multi-Core * Unknown
  • 3723
General specs
General specs — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Release date
  • 2015
  • May
  • 2015
  • March
Colors
  • Light Blue
  • Dart Blue
  • Red
  • Yellow
  • White
  • Marble white
  • Milkyway Gray
  • Monarch Orange
  • Santorini White
  • Tuxedo Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 370 EUR
Battery life Unknown
  • Stand by time- Up to 560 h (3G) Talking time- Up to 12 h 10 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
SIM card
  • Dual SIM
  • 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 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • 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
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.49 W/kg (head) 0.84 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A355, Desire 820s dual sim.
SpecificationA355Desire 820s dual sim
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity
  • compass