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Amoi E72 vs Karbonn A21

Compare recorded specifications, size and practical differences.

Amoi E72

Amoi E72

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Karbonn A21

Karbonn A21

Replace A21
Remove A21
+ 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 diagonalE72: 1.3 in smaller diagonalE72: 3.2 in · A21: 4.5 in
  • Release year2007 / 2012E72: 2007 · 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.

Front
E72: 100 × 44.8 mm 1
Side
E72: 100 × 14.8 mm 1
  1. 1. E72
    Height
    100 mm
    Width
    44.8 mm
    Depth
    14.8 mm
    Weight
    150 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. E72 Screen geometry unavailable or conflicting
  2. 2. A21 4.5 in · 5:3 About 57.6 cm² rectangular area

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.

E72: Original memory entry

64 MB

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. E72

NFC
See details Super AMOLED
Headphone jack
See details panorama
Memory card support
See details microSD (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 capacity

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

  1. 1. E721100 mAh
  2. 2. A211800 mAh

    +700 mAh versus E72

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. E722. A21

Everyday essentials
Everyday essentials
SpecificationE72A21
Dimensions (HxWxD)
  • 100 Х 44.8 Х 14.8 mm
  • Х Х mm
Weight
  • 150 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 4.5" inch
Screen resolution
  • 176 x 220 px
  • 480 x 800 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 Phone Edition
  • Android 4.0 (Ice Cream Sandwich)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display
SpecificationE72A21
Touchscreen
  • Super AMOLED
  • capacitive touchscreen
Display colors
  • 65K
  • 256K
Screen area
  • 12.6 cm2
  • 57.6 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 28.1%
Unknown
PPI /points per inch/
  • 0 PPI
  • 207 PPI
Camera and Video
Camera and Video
SpecificationE72A21
Rear camera, main
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 1.3 MP
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 1.3 MP
  • Single
Specifications
  • Super AMOLED
  • 1.3 MP
Performance
Performance
SpecificationE72A21
Processor CPU
  • Super AMOLED
  • Dual-core 1.2 GHz
General specs
General specs
SpecificationE72A21
Release date
  • 2007
  • 2012
Colors
  • Black
  • Pearl White
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer. Unknown
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 200 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity
SpecificationE72A21
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Super AMOLED
  • Yes
Wi-Fi
  • panorama
  • Wi-Fi 802.11 b/g/n
GPS
  • panorama
  • Yes
  • with A-GPS
USB
  • panorama
  • microUSB 2.0
Bluetooth
  • Quad-core 1.25 GHz Cortex-A53
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.44 W/kg (head)
Music and Audio
Music and Audio
SpecificationE72A21
Radio
  • panorama
  • No
Other features
Other features
SpecificationE72A21
Dop
  • File transfer -Organizer
  • Sensors Accelerometer
  • proximity