BLU Advance L4 vs Celkon A20

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.

  • Release year

    Advance L4:
    2018
    A20:
    2013

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. Advance L4

    Height:
    124.3 mm
    Width:
    65.2 mm
    Depth:
    10.4 mm
    Weight:
    104 g
  2. 2. A20

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

    Unavailable dimensions are omitted from the drawing.

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. Advance L4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. A20

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

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.

Advance L4: Original memory entry

8 GB · 512 MB 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. Advance L4

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

2. A20

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. Advance L4

    1300 mAh

  2. 2. A20

    1500 mAh

    +200 mAh versus Advance L4

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. Advance L42. A20

Everyday essentials
Everyday essentials — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Dimensions (HxWxD)
  • 124.3 Х 65.2 Х 10.4 mm
  • Х Х mm
Weight
  • 104 g
  • 0 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4" inch
  • 4" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 256 MB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Po
  • 1500 mAh
  • Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Android 4.2.0 (Jelly Bean)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 45.5 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 56.2%
Unknown
PPI /points per inch/
  • 233 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • 480p
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 2 MP
  • VGA
Performance

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

Performance — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Mali-400
Unknown
Antutu 7 score *
  • 30215
Unknown
General specs
General specs — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Release date
  • 2018
  • September
  • 2013
  • August
Colors
  • Black
  • Cyan
  • White
  • Teal
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 50 USD
  • 60 EUR
Battery life
  • 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)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Advance L4, A20.
SpecificationAdvance L4A20
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • Yes
  • 384 kbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • Yes
Harmful irradiation Unknown
  • SAR EU - 0.88 W/kg (head) 0.60 W/kg (body)
Music and Audio
Music and Audio — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Radio
  • FM radio
Unknown
Other features
Other features — specifications for Advance L4, A20.
SpecificationAdvance L4A20
Dop
  • Sensors Accelerometer For USA
  • Sensors Proximity
  • gyro