Celkon A66 vs T-Mobile G2

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

    A66: 86.3 g lighter

    A66:
    98 g
    G2:
    184.3 g
  • Width

    G2: 6.2 mm narrower

    A66:
    67.2 mm
    G2:
    61 mm
  • Screen diagonal

    G2: 0.8 in smaller diagonal

    A66:
    4.5 in
    G2:
    3.7 in
  • Depth

    A66: 4.2 mm thinner

    A66:
    11 mm
    G2:
    15.2 mm
  • Height

    G2: 16.6 mm shorter

    A66:
    136 mm
    G2:
    119.4 mm
  • Release year

    A66:
    2014
    G2:
    2010

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. A66

    Height:
    136 mm +16.6 mm versus G2
    Width:
    67.2 mm +6.2 mm versus G2
    Depth:
    11 mm
  2. 2. G2

    Height:
    119.4 mm
    Width:
    61 mm
    Depth:
    15.2 mm +4.2 mm versus A66

Weight

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

  1. 1. A66

    98 g

  2. 2. G2

    184.3 g

    +86.3 g versus A66

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. A66

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. G2

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

A66 has approximately 43.3% more rectangular screen area than G2.

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.

A66: Original memory entry

4 GB · 512 MB RAM

G2: 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. A66

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

2. G2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 8 GB included

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. A66

    2000 mAh

    +700 mAh versus G2

  2. 2. G2

    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. A662. G2

Everyday essentials
Everyday essentials — specifications for A66, G2.
SpecificationA66G2
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 119.4 Х 61 Х 15.2 mm
Weight
  • 98 g
  • 184.3 g
Technology
  • TFT
  • TFT
Screen size
  • 4.5" inch
  • 3.7" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
  • 8 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 2.2 (Froyo)
Chipset Unknown
  • Qualcomm MSM7230
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, G2.
SpecificationA66G2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 39.0 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 61.1%
  • 53.5%
PPI /points per inch/
  • 218 PPI
  • 252 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for A66, G2.
SpecificationA66G2
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 720p
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA
Unknown
Performance
Performance — specifications for A66, G2.
SpecificationA66G2
Processor CPU
  • Dual-core 1.2 GHz
  • 800 MHz Scorpion
Graphics processor GPU Unknown
  • Adreno 205
General specs
General specs — specifications for A66, G2.
SpecificationA66G2
Release date
  • 2014
  • 2010
  • September
Colors
  • White
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 420 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 430 h (2G) / Up to 430 h (3G) Talking time- Up to 9 h 50 min (2G) / Up to 6 h 40 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A66, G2.
SpecificationA66G2
SIM card
  • Dual SIM
  • Mini-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed Unknown
  • HSPA 14.4/2 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 2.1
  • A2DP
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, G2.
SpecificationA66G2
Radio
  • FM radio
  • Nо
Other features
Other features — specifications for A66, G2.
SpecificationA66G2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Document viewer -Voice memo -Predictive text input (Swype) - Optical trackpad