T-Mobile Comet vs ZTE Nubia Z7

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.

  • Width

    Comet: 19.8 mm narrower

    Comet:
    55.9 mm
    Nubia Z7:
    75.7 mm
  • Screen diagonal

    Comet: 2.7 in smaller diagonal

    Comet:
    2.8 in
    Nubia Z7:
    5.5 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Nubia Z7:
    Qualcomm MSM8974AC Snapdragon 801 (28 nm)
  • Depth

    Nubia Z7: 3.8 mm thinner

    Comet:
    12.7 mm
    Nubia Z7:
    8.9 mm
  • Height

    Comet: 49.1 mm shorter

    Comet:
    104.1 mm
    Nubia Z7:
    153.2 mm
  • Release year

    Comet:
    2010
    Nubia Z7:
    2014

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 +3.8 mm versus Nubia Z7
    Weight:
    102.1 g
  2. 2. Nubia Z7

    Height:
    153.2 mm +49.1 mm versus Comet
    Width:
    75.7 mm +19.8 mm versus Comet
    Depth:
    8.9 mm
    Weight:
    Unknown

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 Z7

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

Nubia Z7 has approximately 243.5% 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.

Recorded RAM for Comet, Nubia Z7, compared at the same storage capacity.
StorageCometNubia Z7
32 GB Unknown 3 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 Z7

NFC:
Yes
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. Comet

    1200 mAh

  2. 2. Nubia Z7

    3000 mAh

    +1800 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 Z7

Everyday essentials
Everyday essentials — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 153.2 Х 75.7 Х 8.9 mm
Weight
  • 102.1 g
  • 0 g
Technology
  • TFT
Unknown
Screen size
  • 2.8" inch
  • 5.5" inch
Screen resolution
  • 240 x 320 px
  • 1440 x 2560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 32 GB
  • 3 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
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 4.4.2 (KitKat); nubia UI 2
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm MSM8974AC Snapdragon 801 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 82.2 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 41.7%
  • 70.8%
PPI /points per inch/
  • 143 PPI
  • 538 PPI
Camera and Video
Camera and Video — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • OIS
  • AF
Functions Unknown
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
Performance

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

Performance — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Processor CPU
  • 528 MHz ARM 11
  • Quad-core 2.5 GHz Krait 400
Graphics processor GPU
  • No
  • Adreno 330
Antutu 7 score * Unknown
  • 37154
General specs
General specs — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Release date
  • 2010
  • November
  • 2014
  • July
Colors
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 250 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
SIM card
  • Mini-SIM
  • Dual SIM (Micro-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 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
Radio
  • FM radio
  • FM radio
Others Unknown
  • DTS sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, Nubia Z7.
SpecificationCometNubia Z7
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 Accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port