Nokia 6720 classic vs Posh Icon HD X551

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

    6720 classic: 5 g lighter

    6720 classic:
    110 g
    Icon HD X551:
    115 g
  • Width

    6720 classic: 34 mm narrower

    6720 classic:
    45 mm
    Icon HD X551:
    79 mm
  • Screen diagonal

    6720 classic: 3.3 in smaller diagonal

    6720 classic:
    2.2 in
    Icon HD X551:
    5.5 in
  • Depth

    Icon HD X551: 5.8 mm thinner

    6720 classic:
    14 mm
    Icon HD X551:
    8.2 mm
  • Height

    6720 classic: 43.2 mm shorter

    6720 classic:
    110 mm
    Icon HD X551:
    153.2 mm
  • Release year

    6720 classic:
    2009
    Icon HD X551:
    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. 6720 classic

    Height:
    110 mm
    Width:
    45 mm
    Depth:
    14 mm +5.8 mm versus Icon HD X551
  2. 2. Icon HD X551

    Height:
    153.2 mm +43.2 mm versus 6720 classic
    Width:
    79 mm +34 mm versus 6720 classic
    Depth:
    8.2 mm

Weight

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

  1. 1. 6720 classic

    110 g

  2. 2. Icon HD X551

    115 g

    +5 g versus 6720 classic

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. 6720 classic

    Screen diagonal:
    2.2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    15 cm²
  2. 2. Icon HD X551

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

Icon HD X551 has approximately 456.4% more rectangular screen area than 6720 classic.

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 6720 classic, Icon HD X551, compared at the same storage capacity.
Storage6720 classicIcon HD X551
16 GB Unknown 1 GB RAM
6720 classic: Original memory entry

50 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. 6720 classic

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 16 GB (dedicated slot) · 1 GB included

2. Icon HD X551

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

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. 6720 classic

    1050 mAh

  2. 2. Icon HD X551

    2100 mAh

    +1050 mAh versus 6720 classic

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. 6720 classic2. Icon HD X551

Everyday essentials
Everyday essentials — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Dimensions (HxWxD)
  • 110 Х 45 Х 14 mm
  • 153.2 Х 79 Х 8.2 mm
Weight
  • 110 g
  • 115 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.2" inch
  • 5.5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 50 MB
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • 1 GB included
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Ion
  • 2100 mAh
  • Removable Li-Po
Operating system OS
  • Symbian
  • S60 rel. 3.2
  • Android 5.1 (Lollipop)
Chipset Unknown
  • Mediatek MT6580A (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 15.0 cm2
  • 83.4 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 30.3%
  • 68.9%
PPI /points per inch/
  • 182 PPI
  • 267 PPI
Camera and Video
Camera and Video — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 8 MP
  • AF
Functions
  • Carl Zeiss optics
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 480p@15fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • QVGA videocall camera
  • 2 MP
Performance
Performance — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Processor CPU
  • 600 MHz ARM 11
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
General specs
General specs — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Release date
  • 2009
  • February
  • 2015
  • November
Colors
  • Titanium
  • Grey
  • Brown
  • Dark Grey
  • White
  • Gold
  • Rose Gold
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life
  • Stand by time- Up to 492 h (2G) / 504 h (3G) Talking time- Up to 8 h 30 min (2G) / 5 h (3G) Music play - Up to 27 h
  • Stand by time- Up to 700 h (2G) / Up to 250 h (3G) Talking time- Up to 22 h (2G) / Up to 12 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
SIM card
  • Mini-SIM
  • Dual SIM (Micro-SIM/ Mini-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 10.2/2 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 32
  • Yes
Edge
  • Class 32
  • 296 / 178.8 kbits
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS; Nokia Maps 3.0
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
  • EDR
Harmful irradiation
  • SAR - 0.96 W/kg (head) 0.53 W/kg (body) SAR EU - 0.69 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Other features
Other features — specifications for 6720 classic, Icon HD X551.
Specification6720 classicIcon HD X551
Dop
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -TV-out -Voice memo -Predictive text input
  • Sensors Accelerometer
  • proximity
  • compass