Archos 55b Cobalt vs BLU C4

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

    C4: 70 g lighter

    55b Cobalt:
    188 g
    C4:
    118 g
  • Screen diagonal

    C4: 1.5 in smaller diagonal

    55b Cobalt:
    5.5 in
    C4:
    4 in
  • Release year

    55b Cobalt:
    2017
    C4:
    2018

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. C4

    Height:
    124.3 mm
    Width:
    64.2 mm
    Depth:
    10.9 mm

Weight

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

  1. 1. 55b Cobalt

    188 g

    +70 g versus C4

  2. 2. C4

    118 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. C4

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

55b Cobalt has approximately 83.1% more rectangular screen area than C4.

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

C4: Original memory entry

8 GB · 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. 55b Cobalt

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

2. C4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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

    +1300 mAh versus C4

  2. 2. C4

    1300 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. C4

Everyday essentials
Everyday essentials — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Dimensions (HxWxD)
  • 155 Х 79 Х 0 mm
  • 124.3 Х 64.2 Х 10.9 mm
Weight
  • 188 g
  • 118 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 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 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2600 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 8.1 Oreo (Go edition)
Chipset
  • Qualcomm MSM8909 Snapdragon 210 (28 nm)
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 68.1%
  • 57.1%
PPI /points per inch/
  • 267 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Rear camera, main
  • 13 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • 5 MP
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 720p@30fps
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance

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

Performance — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Processor CPU
  • Quad-core 1.1 GHz Cortex-A7
  • Quad-core 1.3 GHz
Graphics processor GPU
  • Adreno 304
  • Mali-400
Antutu 7 score *
  • 17741
  • 21722
General specs
General specs — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Release date
  • 2017
  • January
  • 2018
  • August
Colors
  • Gray
  • Black
  • Gold
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 50 USD
Battery life Unknown
  • Stand by time- Up to 400 h (2G) / Up to 450 h (3G) Talking time- Up to 18 h (2G) / Up to 13 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-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
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.1
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, C4.
Specification55b CobaltC4
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for 55b Cobalt, C4.
Specification55b CobaltC4
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer For USA