T-Mobile Comet vs ZTE nubia Z20

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

    Comet: 83.9 g lighter

    Comet:
    102.1 g
    nubia Z20:
    186 g
  • Width

    Comet: 19.3 mm narrower

    Comet:
    55.9 mm
    nubia Z20:
    75.2 mm
  • Screen diagonal

    Comet: 3.62 in smaller diagonal

    Comet:
    2.8 in
    nubia Z20:
    6.42 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    nubia Z20:
    Qualcomm SDM855 Snapdragon 855+ (7 nm)
  • Rear camera layout

    Comet:
    Single
    nubia Z20:
    Triple
  • Depth

    nubia Z20: 3.5 mm thinner

    Comet:
    12.7 mm
    nubia Z20:
    9.2 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. Comet

    Height:
    104.1 mm
    Width:
    55.9 mm
    Depth:
    12.7 mm +3.5 mm versus nubia Z20
  2. 2. nubia Z20

    Height:
    158.6 mm +54.5 mm versus Comet
    Width:
    75.2 mm +19.3 mm versus Comet
    Depth:
    9.2 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. nubia Z20

    186 g

    +83.9 g versus Comet

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. Comet

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. nubia Z20

    Screen diagonal:
    6.42 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    101.2 cm²

nubia Z20 has approximately 316.7% more rectangular screen area than Comet.

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.

nubia Z20: Original memory entry

128/512 GB · 8 GB RAM 128 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. Comet

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

2. nubia Z20

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. Comet

    1200 mAh

  2. 2. nubia Z20

    4000 mAh

    +2800 mAh versus Comet

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. Comet2. nubia Z20

Everyday essentials
Everyday essentials — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 158.6 Х 75.2 Х 9.2 mm
Weight
  • 102.1 g
  • 186 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.8" inch
  • 6.42" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128/512 GB
  • 8 GB RAM 128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 9.0 (Pie); Nubia UI 7
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm SDM855 Snapdragon 855+ (7 nm)
Headphone jack
  • Yes
  • No
Display
Display — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 101.2 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 41.7%
  • 84.8%
PPI /points per inch/
  • 143 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified)
Camera and Video
Camera and Video — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 3.15 MP
  • 48 MP
  • f/1.7
  • 26mm (wide)
  • 1/2''
  • 0.8µm
  • PDAF
  • OIS -8 MP (telephoto)
  • 3x optical zoom -16 MP
  • 12mm (ultrawide)
Functions Unknown
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • CIF
  • 4320@15fps
  • 2160p@30/60fps
  • 1080p@30/60fps
  • 720p@1920fps
Front camera, selfie
  • 0 MP,
  • 48 MP
  • Triple
Specifications Unknown
  • Uses main cameras
Performance
Performance — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU
  • No
  • Adreno 640 (700 MHz)
General specs
General specs — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Release date
  • 2010
  • November
  • 2019
  • August
Colors
  • Black
  • Black
  • Blue
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 450 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Unknown
Body build Unknown
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (6CA) Cat18 1200/150 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • 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
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Radio
  • FM radio
  • No
Others Unknown
  • HDR10 -Secondary display (on the back): AMOLED
  • 5.1 inches
  • 1080 x 2340 pixels
  • Corning Gorilla Glass 3
  • DTS HD sound -32-bit/384kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, nubia Z20.
SpecificationCometnubia Z20
Dop
  • Sensors Accelerometer MP3/WMA/eAAC+ player -MP4/H.264 player -Organizer -Photo viewer/editor -Voice memo/dial/commands -Predictive text input (Swype) For T-Mobile
  • Sensors Dual fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 27W - USB Power Delivery 2.0