Archos 55b Cobalt vs Motorola ROKR E6

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

    ROKR E6: 67 g lighter

    55b Cobalt:
    188 g
    ROKR E6:
    121 g
  • Screen diagonal

    ROKR E6: 3.1 in smaller diagonal

    55b Cobalt:
    5.5 in
    ROKR E6:
    2.4 in
  • Release year

    55b Cobalt:
    2017
    ROKR E6:
    2006

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. 55b Cobalt

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown

    Unavailable dimensions are omitted from the drawing.

  2. 2. ROKR E6

    Height:
    111 mm
    Width:
    51.5 mm
    Depth:
    14.5 mm

Weight

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

  1. 1. 55b Cobalt

    188 g

    +67 g versus ROKR E6

  2. 2. ROKR E6

    121 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. 55b Cobalt

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. ROKR E6

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²

55b Cobalt has approximately 367.5% more rectangular screen area than ROKR E6.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

55b Cobalt: Original memory entry

16/32 GB · 1/2 GB RAM

ROKR E6: Original memory entry

8 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. 55b Cobalt

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (dedicated slot)

2. ROKR E6

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details SD · up to 2 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. 55b Cobalt

    2600 mAh

    +1600 mAh versus ROKR E6

  2. 2. ROKR E6

    1000 mAh

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. 55b Cobalt2. ROKR E6

Everyday essentials
Everyday essentials — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Dimensions (HxWxD)
  • 155 Х 79 Х 0 mm
  • 111 Х 51.5 Х 14.5 mm
Weight
  • 188 g
  • 121 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 2.4" inch
Screen resolution
  • 720 x 1280 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 1/2 GB RAM
  • 8 MB
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • SD
  • up to 2 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2600 mAh
  • Removable Li-Ion
  • 1000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Linux
Chipset
  • Qualcomm MSM8909 Snapdragon 210 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 83.4 cm2
  • 17.8 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 68.1%
  • 31.2%
PPI /points per inch/
  • 267 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Rear camera, main
  • 13 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • 2 MP
Functions
  • Dual-LED flash
  • HDR
  • panorama
Unknown
Video
  • 720p@30fps
  • CIF
Front camera, selfie
  • 2 MP
  • Single
  • 0 MP,
Specifications
  • 2 MP
Unknown
Performance

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

Performance — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Processor CPU
  • Quad-core 1.1 GHz Cortex-A7
  • 32-bit Intel XScale PXA270 312 MHz
Graphics processor GPU
  • Adreno 304
Unknown
Antutu 7 score *
  • 17741
Unknown
General specs
General specs — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Release date
  • 2017
  • January
  • 2006
  • December
Colors
  • Gray
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 140 EUR
Battery life Unknown
  • Stand by time- Up to 235 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE 800 / 1800 / 2100 / 2600
Unknown
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.98 W/kg (head) 1.76 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for 55b Cobalt, ROKR E6.
Specification55b CobaltROKR E6
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • proximity
  • Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -MP4/MP3 player -Business card scanner -Organizer