Celkon A99 vs ZTE nubia Z18 mini

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

    A99: 33 g lighter

    A99:
    120 g
    nubia Z18 mini:
    153 g
  • Width

    A99: 6.6 mm narrower

    A99:
    64 mm
    nubia Z18 mini:
    70.6 mm
  • Screen diagonal

    A99: 1.7 in smaller diagonal

    A99:
    4 in
    nubia Z18 mini:
    5.7 in
  • Rear camera layout

    A99:
    Single
    nubia Z18 mini:
    Dual
  • Depth

    nubia Z18 mini: 3.7 mm thinner

    A99:
    11.3 mm
    nubia Z18 mini:
    7.6 mm
  • Height

    A99: 26.6 mm shorter

    A99:
    121.4 mm
    nubia Z18 mini:
    148 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. A99

    Height:
    121.4 mm
    Width:
    64 mm
    Depth:
    11.3 mm +3.7 mm versus nubia Z18 mini
  2. 2. nubia Z18 mini

    Height:
    148 mm +26.6 mm versus A99
    Width:
    70.6 mm +6.6 mm versus A99
    Depth:
    7.6 mm

Weight

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

  1. 1. A99

    120 g

  2. 2. nubia Z18 mini

    153 g

    +33 g versus A99

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. A99

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²
  2. 2. nubia Z18 mini

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

nubia Z18 mini has approximately 76% more rectangular screen area than A99.

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 A99, nubia Z18 mini, compared at the same storage capacity.
StorageA99nubia Z18 mini
64 GB Unknown 6 GB RAM
128 GB Unknown 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. A99

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

2. nubia Z18 mini

NFC:
Unknown
Headphone jack:
Yes
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. A99

    1200 mAh

  2. 2. nubia Z18 mini

    3450 mAh

    +2250 mAh versus A99

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. A992. nubia Z18 mini

Everyday essentials
Everyday essentials — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Dimensions (HxWxD)
  • 121.4 Х 64 Х 11.3 mm
  • 148 Х 70.6 Х 7.6 mm
Weight
  • 120 g
  • 153 g
Technology
  • TFT
  • LTPS IPS LCD
Screen size
  • 4" inch
  • 5.7" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2160 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Li-Ion
  • 3450 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3.5 (Gingerbread)
  • Android 8.1 (Oreo); nubia UI
Chipset Unknown
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 47.6 cm2
  • 83.8 cm2
Screen format
  • 3:2 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 61.3%
  • 80.2%
PPI /points per inch/
  • 144 PPI
  • 424 PPI
Camera and Video
Camera and Video — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Rear camera, main
  • 3.15 MP
  • Single
  • 24 MP
  • Dual
Camera specs
  • 3.15 MP
  • 24 MP
  • f/1.7
  • PDAF -5 MP
  • depth sensor
Functions Unknown
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Performance

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

Performance — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Processor CPU
  • 650 MHz
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU Unknown
  • Adreno 512
Antutu 7 score * Unknown
  • 145322
General specs
General specs — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Release date
  • 2012
  • 2018
  • April
Colors
  • Black
  • Provence Edition
  • Ying Yu powder
  • Celadon blue
  • Diamond black
  • Glacier white
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 260 EUR
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 3 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
SIM card
  • Dual SIM (Mini-SIM)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
  • 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)
  • 5(850)
  • 8(900)
  • 19(800)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • hotspot
  • Wi-Fi 802.11 b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.1
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Radio
  • Stereo FM radio
  • RDS
  • recordin
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A99, nubia Z18 mini.
SpecificationA99nubia Z18 mini
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/eAAC player -MP4/H.264 player -Document viewer -Organizer -Voice memo/dial -Predictive text input
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass