T-Mobile Comet vs vivo X30

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: 94.4 g lighter

    Comet:
    102.1 g
    X30:
    196.5 g
  • Width

    Comet: 18.2 mm narrower

    Comet:
    55.9 mm
    X30:
    74.1 mm
  • Screen diagonal

    Comet: 3.64 in smaller diagonal

    Comet:
    2.8 in
    X30:
    6.44 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    X30:
    Exynos 980 (8 nm)
  • Rear camera layout

    Comet:
    Single
    X30:
    Triple
  • Depth

    X30: 3.9 mm thinner

    Comet:
    12.7 mm
    X30:
    8.8 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 +3.9 mm versus X30
  2. 2. X30

    Height:
    158.5 mm +54.4 mm versus Comet
    Width:
    74.1 mm +18.2 mm versus Comet
    Depth:
    8.8 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. X30

    196.5 g

    +94.4 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. X30

    Screen diagonal:
    6.44 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    100.1 cm²

X30 has approximately 312.4% 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, X30, compared at the same storage capacity.
StorageCometX30
128 GB Unknown 8 GB RAM
256 GB Unknown 8 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. X30

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. X30

    4350 mAh

    +3150 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. X30

Everyday essentials
Everyday essentials — specifications for Comet, X30.
SpecificationCometX30
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 158.5 Х 74.1 Х 8.8 mm
Weight
  • 102.1 g
  • 196.5 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.8" inch
  • 6.44" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128GB 8GB RAM
  • 256GB 8GB 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
  • 4350 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 9.0 (Pie); Funtouch 10.0
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Exynos 980 (8 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, X30.
SpecificationCometX30
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 100.1 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 41.7%
  • 85.3%
PPI /points per inch/
  • 143 PPI
  • 409 PPI
Camera and Video
Camera and Video — specifications for Comet, X30.
SpecificationCometX30
Rear camera, main
  • 3.15 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 3.15 MP
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF
  • laser AF
  • OIS -32 MP
  • f/2.0
  • 50mm (telephoto)
  • 1/2.8"
  • OIS
  • 2x optical zoom -8 MP
  • f/2.2
  • 16mm (ultrawide)
  • 1/4.0"
  • 1.12µm
Functions Unknown
  • HDR
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 32 MP
  • Single
Specifications Unknown
  • 32 MP
  • f/2.4
  • 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, X30.
SpecificationCometX30
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55)
Graphics processor GPU
  • No
  • Mali-G76 MP5
Antutu 8 score * Unknown
  • 332541
General specs
General specs — specifications for Comet, X30.
SpecificationCometX30
Release date
  • 2010
  • November
  • 2019
  • December
Colors
  • Black
  • Black
  • Peach
  • Light Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 420 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Unknown
Body build Unknown
  • Glass front
  • glass back
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for Comet, X30.
SpecificationCometX30
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 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) -5G - 5G band 41(2500)
  • 78(3500); SA/NSA
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • 5G (3.6+ Gbps DL)
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
  • 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, X30.
SpecificationCometX30
Radio
  • FM radio
  • FM radio
Others Unknown
  • HDR -800 nits typ. brightness
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, X30.
SpecificationCometX30
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 33W