T-Mobile Comet vs vivo Z1x

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: 87.9 g lighter

    Comet:
    102.1 g
    Z1x:
    190 g
  • Width

    Comet: 19.3 mm narrower

    Comet:
    55.9 mm
    Z1x:
    75.2 mm
  • Screen diagonal

    Comet: 3.58 in smaller diagonal

    Comet:
    2.8 in
    Z1x:
    6.38 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Z1x:
    Qualcomm SDM712 Snapdragon 712 (10 nm)
  • Rear camera layout

    Comet:
    Single
    Z1x:
    Triple
  • Depth

    Z1x: 4.6 mm thinner

    Comet:
    12.7 mm
    Z1x:
    8.1 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 +4.6 mm versus Z1x
  2. 2. Z1x

    Height:
    159.5 mm +55.4 mm versus Comet
    Width:
    75.2 mm +19.3 mm versus Comet
    Depth:
    8.1 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. Z1x

    190 g

    +87.9 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. Z1x

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

Z1x has approximately 311.6% 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, Z1x, compared at the same storage capacity.
StorageCometZ1x
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. Comet

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

2. Z1x

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. Comet

    1200 mAh

  2. 2. Z1x

    4500 mAh

    +3300 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. Z1x

Everyday essentials
Everyday essentials — specifications for Comet, Z1x.
SpecificationCometZ1x
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 159.5 Х 75.2 Х 8.1 mm
Weight
  • 102.1 g
  • 190 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.8" inch
  • 6.38" 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
  • 64GB 6GB RAM
  • 128GB 6GB 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
  • 4500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 9.0 (Pie); Funtouch 9.1
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm SDM712 Snapdragon 712 (10 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Z1x.
SpecificationCometZ1x
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 99.9 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 41.7%
  • 83.3%
PPI /points per inch/
  • 143 PPI
  • 404 PPI
Camera and Video
Camera and Video — specifications for Comet, Z1x.
SpecificationCometZ1x
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 3.15 MP
  • 48 MP
  • f/1.8
  • (wide)
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide) -5 MP
  • f/2.4
  • depth sensor
Functions Unknown
  • HDR
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 32 MP
  • Single
Specifications Unknown
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8"
  • 0.8µm
Performance

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

Performance — specifications for Comet, Z1x.
SpecificationCometZ1x
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (2x2.3 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
Graphics processor GPU
  • No
  • Adreno 616
Antutu 8 score * Unknown
  • 215555
General specs
General specs — specifications for Comet, Z1x.
SpecificationCometZ1x
Release date
  • 2010
  • November
  • 2019
  • September
Colors
  • Black
  • Fusion Blue
  • Phantom Purple
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 220 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, Z1x.
SpecificationCometZ1x
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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE-A
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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
  • aptX
Harmful irradiation Unknown
  • SAR - 1.03 W/kg (head) 0.55 W/kg (body)
Music and Audio
Music and Audio — specifications for Comet, Z1x.
SpecificationCometZ1x
Radio
  • FM radio
  • FM radio
Others Unknown
  • Always-on display
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, Z1x.
SpecificationCometZ1x
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 Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 22.5W