BlackBerry Evolve X vs Celkon A66

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: 72 g lighter

    Evolve X:
    170 g
    A66:
    98 g
  • Width

    A66: 9.6 mm narrower

    Evolve X:
    76.8 mm
    A66:
    67.2 mm
  • Screen diagonal

    A66: 1.49 in smaller diagonal

    Evolve X:
    5.99 in
    A66:
    4.5 in
  • Rear camera layout

    Evolve X:
    Dual
    A66:
    Single
  • Depth

    Evolve X: 2.2 mm thinner

    Evolve X:
    8.8 mm
    A66:
    11 mm
  • Height

    A66: 23.1 mm shorter

    Evolve X:
    159.1 mm
    A66:
    136 mm

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. Evolve X

    Height:
    159.1 mm +23.1 mm versus A66
    Width:
    76.8 mm +9.6 mm versus A66
    Depth:
    8.8 mm
  2. 2. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +2.2 mm versus Evolve X

Weight

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

  1. 1. Evolve X

    170 g

    +72 g versus A66

  2. 2. A66

    98 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. Evolve X

    Screen diagonal:
    5.99 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.6 cm²
  2. 2. A66

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

Evolve X has approximately 65.9% 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 Evolve X, A66, compared at the same storage capacity.
StorageEvolve XA66
64 GB 6 GB RAM Unknown
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. Evolve X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB

2. A66

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. Evolve X

    4000 mAh

    +2000 mAh versus A66

  2. 2. A66

    2000 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. Evolve X2. A66

Everyday essentials
Everyday essentials — specifications for Evolve X, A66.
SpecificationEvolve XA66
Dimensions (HxWxD)
  • 159.1 Х 76.8 Х 8.8 mm
  • 136 Х 67.2 Х 11 mm
Weight
  • 170 g
  • 98 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.99" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2160 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 6 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 512 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.1.2 (Jelly Bean)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Evolve X, A66.
SpecificationEvolve XA66
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 92.6 cm2
  • 55.8 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 75.8%
  • 61.1%
PPI /points per inch/
  • 403 PPI
  • 218 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Evolve X, A66.
SpecificationEvolve XA66
Rear camera, main
  • 12 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 1/2.8''
  • 1.29µm
  • PDAF -13 MP
  • f/2.6
  • 1/3.4''
  • 1.0µm
  • 2х optical zoom
  • PDAF
  • 3.15 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30/60fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • VGA
Performance

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

Performance — specifications for Evolve X, A66.
SpecificationEvolve XA66
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Adreno 512
Unknown
Antutu 7 score *
  • 84432
Unknown
General specs
General specs — specifications for Evolve X, A66.
SpecificationEvolve XA66
Release date
  • 2018
  • August
  • 2014
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Body build
  • aluminum frame (7000 series)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Evolve X, A66.
SpecificationEvolve XA66
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 40(2300)
  • 41(2500)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat12 600/150 Mbps
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • SBAS
  • Yes
USB
  • 2.0
  • Type-C 1.0 reversible connector (PowerDelivery 2.0)
  • USB On-The-Go
  • microUSB
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Music and Audio
Music and Audio — specifications for Evolve X, A66.
SpecificationEvolve XA66
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
Unknown
Other features
Other features — specifications for Evolve X, A66.
SpecificationEvolve XA66
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Wireless charging -Fast battery charging: (Quick Charge 3.0)
  • Sensors Accelerometer
  • proximity