Celkon A66 vs Xolo Era 2X

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.

  • Width

    A66: 5.1 mm narrower

    A66:
    67.2 mm
    Era 2X:
    72.3 mm
  • Screen diagonal

    A66: 0.5 in smaller diagonal

    A66:
    4.5 in
    Era 2X:
    5 in
  • Depth

    Era 2X: 1.5 mm thinner

    A66:
    11 mm
    Era 2X:
    9.5 mm
  • Height

    A66: 8 mm shorter

    A66:
    136 mm
    Era 2X:
    144 mm
  • Release year

    A66:
    2014
    Era 2X:
    2017

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
    Width:
    67.2 mm
    Depth:
    11 mm +1.5 mm versus Era 2X
    Weight:
    98 g
  2. 2. Era 2X

    Height:
    144 mm +8 mm versus A66
    Width:
    72.3 mm +5.1 mm versus A66
    Depth:
    9.5 mm
    Weight:
    Unknown

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. Era 2X

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

Era 2X has approximately 23.5% more rectangular screen area than A66.

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

Era 2X: Original memory entry

16 GB · 2/3 GB 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. Era 2X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. A66

    2000 mAh

  2. 2. Era 2X

    2500 mAh

    +500 mAh versus A66

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. Era 2X

Everyday essentials
Everyday essentials — specifications for A66, Era 2X.
SpecificationA66Era 2X
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 144 Х 72.3 Х 9.5 mm
Weight
  • 98 g
  • 0 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 16 GB
  • 2/3 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6737 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, Era 2X.
SpecificationA66Era 2X
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.1%
  • 66.2%
PPI /points per inch/
  • 218 PPI
  • 294 PPI
Camera and Video
Camera and Video — specifications for A66, Era 2X.
SpecificationA66Era 2X
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • AF
  • f/2.0
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
  • f/2.4
Performance

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

Performance — specifications for A66, Era 2X.
SpecificationA66Era 2X
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.25 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T720MP2
Antutu 7 score * Unknown
  • 30252
General specs
General specs — specifications for A66, Era 2X.
SpecificationA66Era 2X
Release date
  • 2014
  • 2017
  • January
Colors
  • White
  • Black
  • Black/Gun Metal
  • Latte Gold
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 322 h (3G) Talking time- Up to 16 h (2G) / Up to 12 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A66, Era 2X.
SpecificationA66Era 2X
SIM card
  • Dual SIM
  • Dual SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Speed Unknown
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
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
  • 4.0
  • 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, Era 2X.
SpecificationA66Era 2X
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A66, Era 2X.
SpecificationA66Era 2X
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India