Celkon A66 vs ZTE nubia Z18

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: 74 g lighter

    A66:
    98 g
    nubia Z18:
    172 g
  • Width

    A66: 5.4 mm narrower

    A66:
    67.2 mm
    nubia Z18:
    72.6 mm
  • Screen diagonal

    A66: 1.49 in smaller diagonal

    A66:
    4.5 in
    nubia Z18:
    5.99 in
  • Rear camera layout

    A66:
    Single
    nubia Z18:
    Dual
  • Depth

    nubia Z18: 2.4 mm thinner

    A66:
    11 mm
    nubia Z18:
    8.6 mm
  • Height

    A66: 12.6 mm shorter

    A66:
    136 mm
    nubia Z18:
    148.6 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. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +2.4 mm versus nubia Z18
  2. 2. nubia Z18

    Height:
    148.6 mm +12.6 mm versus A66
    Width:
    72.6 mm +5.4 mm versus A66
    Depth:
    8.6 mm

Weight

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

  1. 1. A66

    98 g

  2. 2. nubia Z18

    172 g

    +74 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. nubia Z18

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

nubia Z18 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A66: Original memory entry

4 GB · 512 MB RAM

nubia Z18: Original memory entry

128 GB · 8 GB RAM 64 GB · 6 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. nubia Z18

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

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. nubia Z18

    3450 mAh

    +1450 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. nubia Z18

Everyday essentials
Everyday essentials — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 148.6 Х 72.6 Х 8.6 mm
Weight
  • 98 g
  • 172 g
Technology
  • TFT
  • LTPS IPS LCD
Screen size
  • 4.5" inch
  • 5.99" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 2160 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 128 GB
  • 8 GB RAM 64 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 3450 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 8.1 (Oreo); Nubia UI 6
Chipset Unknown
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
Headphone jack
  • Yes
  • No
Display
Display — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 92.6 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 61.1%
  • 85.8%
PPI /points per inch/
  • 218 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Rear camera, main
  • 3.15 MP
  • Single
  • 24 MP
  • Dual
Camera specs
  • 3.15 MP
  • 24 MP
  • f/1.6
  • OIS
  • dual pixel PDAF -16 MP
  • AF
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance
Performance — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.65 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
Graphics processor GPU Unknown
  • Adreno 630
General specs
General specs — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Release date
  • 2014
  • 2018
  • September
Colors
  • White
  • Black
  • Black
  • Red
  • Stary Night
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 400 EUR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (6CA) Cat18 1200/150 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Radio
  • FM radio
  • No
Others Unknown
  • DTS HD sound -32-bit/384kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A66, nubia Z18.
SpecificationA66nubia Z18
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 9V/2A 18W (Quick Charge 4.0)