Celkon A66 vs Microsoft Lumia 950 XL

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: 67 g lighter

    A66:
    98 g
    Lumia 950 XL:
    165 g
  • Width

    A66: 11.2 mm narrower

    A66:
    67.2 mm
    Lumia 950 XL:
    78.4 mm
  • Screen diagonal

    A66: 1.2 in smaller diagonal

    A66:
    4.5 in
    Lumia 950 XL:
    5.7 in
  • Depth

    Lumia 950 XL: 2.9 mm thinner

    A66:
    11 mm
    Lumia 950 XL:
    8.1 mm
  • Height

    A66: 15.9 mm shorter

    A66:
    136 mm
    Lumia 950 XL:
    151.9 mm
  • Release year

    A66:
    2014
    Lumia 950 XL:
    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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +2.9 mm versus Lumia 950 XL
  2. 2. Lumia 950 XL

    Height:
    151.9 mm +15.9 mm versus A66
    Width:
    78.4 mm +11.2 mm versus A66
    Depth:
    8.1 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. Lumia 950 XL

    165 g

    +67 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. Lumia 950 XL

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

Lumia 950 XL has approximately 60.4% 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.

Recorded RAM for A66, Lumia 950 XL, compared at the same storage capacity.
StorageA66Lumia 950 XL
32 GB Unknown 3 GB RAM
A66: 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. Lumia 950 XL

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. A66

    2000 mAh

  2. 2. Lumia 950 XL

    3340 mAh

    +1340 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. Lumia 950 XL

Everyday essentials
Everyday essentials — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 151.9 Х 78.4 Х 8.1 mm
Weight
  • 98 g
  • 165 g
Technology
  • TFT
  • AMOLED
Screen size
  • 4.5" inch
  • 5.7" inch
Screen resolution
  • 480 x 854 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
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 3340 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Microsoft Windows 10
Chipset Unknown
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 88.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 61.1%
  • 74.3%
PPI /points per inch/
  • 218 PPI
  • 518 PPI
Screen protection Unknown
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Rear camera, main
  • 3.15 MP
  • Single
  • 20 MP
  • Single
Camera specs
  • 3.15 MP
  • 20 MP
  • f/1.9
  • 26mm (wide)
  • 1/2.4''
  • 1.12µm
  • OIS
  • AF
Functions
  • LED flash
  • Zeiss optics
  • triple-LED RGB flash
  • panorama
  • HDR
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, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)
Graphics processor GPU Unknown
  • Adreno 430
Antutu 7 score * Unknown
  • 93256
General specs
General specs — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Release date
  • 2014
  • 2015
  • October
Colors
  • White
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 350 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
  • Stand by time- Up to 288 h (2G) / Up to 288 h (3G) Talking time- Up to 25 h (2G) / Up to 19 h (3G) Music play - Up to 75 h
Communication and Connectivity
Communication and Connectivity — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
SIM card
  • Dual SIM
  • Nano-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300) - EMEA LTE band 1(2100)
  • 17(700)
  • 40(2300)
  • 41(2500) - USA
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • 3.1
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • 4.1
  • 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, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Radio
  • FM radio
  • FM radio
Others Unknown
  • ClearBlack display
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A66, Lumia 950 XL.
SpecificationA66Lumia 950 XL
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Iris scanner
  • accelerometer
  • gyro
  • proximity
  • compass
  • barometer
  • sensor core - Microsoft Continuum support -Qi wireless charging (market dependent) -Fast charging