ZTE nubia Z18 vs ZTE Obsidian

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

    Obsidian: 34.5 g lighter

    nubia Z18:
    172 g
    Obsidian:
    137.5 g
  • Width

    Obsidian: 4 mm narrower

    nubia Z18:
    72.6 mm
    Obsidian:
    68.6 mm
  • Screen diagonal

    Obsidian: 1.49 in smaller diagonal

    nubia Z18:
    5.99 in
    Obsidian:
    4.5 in
  • Chipset

    nubia Z18:
    Qualcomm SDM845 Snapdragon 845 (10 nm)
    Obsidian:
    Mediatek MT6735M (28 nm)
  • Rear camera layout

    nubia Z18:
    Dual
    Obsidian:
    Single
  • Depth

    nubia Z18: 1.6 mm thinner

    nubia Z18:
    8.6 mm
    Obsidian:
    10.2 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. nubia Z18

    Height:
    148.6 mm +11.2 mm versus Obsidian
    Width:
    72.6 mm +4 mm versus Obsidian
    Depth:
    8.6 mm
  2. 2. Obsidian

    Height:
    137.4 mm
    Width:
    68.6 mm
    Depth:
    10.2 mm +1.6 mm versus nubia Z18

Weight

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

  1. 1. nubia Z18

    172 g

    +34.5 g versus Obsidian

  2. 2. Obsidian

    137.5 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. nubia Z18

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

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

nubia Z18 has approximately 65.9% more rectangular screen area than Obsidian.

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 nubia Z18, Obsidian, compared at the same storage capacity.
Storagenubia Z18Obsidian
4 GB Unknown 1 GB 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. nubia Z18

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

2. Obsidian

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. nubia Z18

    3450 mAh

    +1650 mAh versus Obsidian

  2. 2. Obsidian

    1800 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. nubia Z182. Obsidian

Everyday essentials
Everyday essentials — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Dimensions (HxWxD)
  • 148.6 Х 72.6 Х 8.6 mm
  • 137.4 Х 68.6 Х 10.2 mm
Weight
  • 172 g
  • 137.5 g
Technology
  • LTPS 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.
  • 128 GB
  • 8 GB RAM 64 GB
  • 6 GB RAM
  • 4 GB
  • 1 GB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3450 mAh
  • Non-removable Li-Po
  • 1800 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); Nubia UI 6
  • Android 5.1 (Lollipop)
Chipset
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
  • Mediatek MT6735M (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 92.6 cm2
  • 55.8 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 85.8%
  • 59.2%
PPI /points per inch/
  • 403 PPI
  • 218 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Rear camera, main
  • 24 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 24 MP
  • f/1.6
  • OIS
  • dual pixel PDAF -16 MP
  • AF
  • 5 MP
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 2 MP
Performance
Performance — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Processor CPU
  • Octa-core (4x2.65 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 630
  • Mali-T720MP2
General specs
General specs — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Release date
  • 2018
  • September
  • 2015
  • August
Colors
  • Black
  • Red
  • Stary Night
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 400 EUR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 252 h (3G) Talking time- Up to 6 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-SIM
Network
  • 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)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 1700(AWS) / 1900 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 12(700)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (6CA) Cat18 1200/150 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Radio
  • No
  • FM radio
Others
  • DTS HD sound -32-bit/384kHz audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for nubia Z18, Obsidian.
Specificationnubia Z18Obsidian
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 9V/2A 18W (Quick Charge 4.0)
  • Sensors Accelerometer