BLU G70 vs Karbonn A21

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.

  • Screen diagonal

    A21: 1.9 in smaller diagonal

    G70:
    6.4 in
    A21:
    4.5 in
  • Rear camera layout

    G70:
    Dual
    A21:
    Single
  • Release year

    G70:
    2020
    A21:
    2012

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. G70

    Height:
    156.8 mm
    Width:
    75 mm
    Depth:
    8.6 mm
    Weight:
    182 g
  2. 2. A21

    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. G70

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²
  2. 2. A21

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

G70 has approximately 74.4% more rectangular screen area than A21.

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 G70, A21, compared at the same storage capacity.
StorageG70A21
32 GB 2 GB RAM Unknown
A21: Original memory entry

4 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. G70

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. A21

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. G70

    4000 mAh

    +2200 mAh versus A21

  2. 2. A21

    1800 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. G702. A21

Everyday essentials
Everyday essentials — specifications for G70, A21.
SpecificationG70A21
Dimensions (HxWxD)
  • 156.8 Х 75 Х 8.6 mm
  • Х Х mm
Weight
  • 182 g
  • 0 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.4" inch
  • 4.5" inch
Screen resolution
  • 720 x 1560 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 2GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Removable Li-Po
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Android 4.0 (Ice Cream Sandwich)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for G70, A21.
SpecificationG70A21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 100.5 cm2
  • 57.6 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 85.5%
Unknown
PPI /points per inch/
  • 268 PPI
  • 207 PPI
Camera and Video
Camera and Video — specifications for G70, A21.
SpecificationG70A21
Rear camera, main
  • 13 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • AF -2 MP
  • depth sensor
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 8 MP
  • 1.3 MP
Performance
Performance — specifications for G70, A21.
SpecificationG70A21
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Mali-G71
Unknown
General specs
General specs — specifications for G70, A21.
SpecificationG70A21
Release date
  • 2020
  • January
  • 2012
Colors
  • Black
  • Blue
  • Green
  • Pearl White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 100 USD
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for G70, A21.
SpecificationG70A21
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 12(700)
  • 17(700)
  • 28(700)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.44 W/kg (head)
Music and Audio
Music and Audio — specifications for G70, A21.
SpecificationG70A21
Radio
  • FM radio
  • No
Other features
Other features — specifications for G70, A21.
SpecificationG70A21
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For USA
  • Sensors Accelerometer
  • proximity