Karbonn A21 vs QMobile Noir E8

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 1.5 in smaller diagonal

    A21:
    4.5 in
    Noir E8:
    6 in
  • Release year

    A21:
    2012
    Noir E8:
    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. A21

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. Noir E8

    Height:
    164 mm
    Width:
    82.3 mm
    Depth:
    9.6 mm
    Weight:
    210 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. A21

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    57.6 cm²
  2. 2. Noir E8

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

Noir E8 has approximately 72.2% 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 A21, Noir E8, compared at the same storage capacity.
StorageA21Noir E8
64 GB Unknown 3 GB RAM
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. A21

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

2. Noir E8

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. A21

    1800 mAh

  2. 2. Noir E8

    3500 mAh

    +1700 mAh versus A21

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. A212. Noir E8

Everyday essentials
Everyday essentials — specifications for A21, Noir E8.
SpecificationA21Noir E8
Dimensions (HxWxD)
  • Х Х mm
  • 164 Х 82.3 Х 9.6 mm
Weight
  • 0 g
  • 210 g
Technology
  • TFT
  • AMOLED
Screen size
  • 4.5" inch
  • 6" inch
Screen resolution
  • 480 x 800 px
  • 1440 x 2560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 64 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 3500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 5.1 (Lollipop); Amigo 3.1
Chipset Unknown
  • Mediatek MT6795 Helio X10 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A21, Noir E8.
SpecificationA21Noir E8
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 57.6 cm2
  • 99.2 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 73.5%
PPI /points per inch/
  • 207 PPI
  • 490 PPI
Camera and Video
Camera and Video — specifications for A21, Noir E8.
SpecificationA21Noir E8
Rear camera, main
  • 5 MP
  • Single
  • 24 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 24 MP
  • 1/2.3''
  • OIS
  • PDAF
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • Yes
  • 2160p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 1.3 MP
  • 8 MP
  • AF
Performance
Performance — specifications for A21, Noir E8.
SpecificationA21Noir E8
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR G6200
General specs
General specs — specifications for A21, Noir E8.
SpecificationA21Noir E8
Release date
  • 2012
  • 2015
  • November
Colors
  • Pearl White
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 400 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 5 h
  • Stand by time- Up to 437 h (2G) / Up to 500 h (3G) Talking time- Up to 39 h (2G) / Up to 20 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A21, Noir E8.
SpecificationA21Noir E8
SIM card
  • Dual SIM (Mini-SIM)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 20(800)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
  • EDR
Harmful irradiation
  • SAR EU - 0.44 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A21, Noir E8.
SpecificationA21Noir E8
Radio
  • No
  • FM radio
  • recording
Others Unknown
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A21, Noir E8.
SpecificationA21Noir E8
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass