T-Mobile Comet vs vivo X9s

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: 51.9 g lighter

    Comet:
    102.1 g
    X9s:
    154 g
  • Width

    Comet: 18.1 mm narrower

    Comet:
    55.9 mm
    X9s:
    74 mm
  • Screen diagonal

    Comet: 2.7 in smaller diagonal

    Comet:
    2.8 in
    X9s:
    5.5 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    X9s:
    Qualcomm MSM8976 Snapdragon 652 (28 nm)
  • Depth

    X9s: 5.7 mm thinner

    Comet:
    12.7 mm
    X9s:
    7 mm
  • Height

    Comet: 48.5 mm shorter

    Comet:
    104.1 mm
    X9s:
    152.6 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 +5.7 mm versus X9s
  2. 2. X9s

    Height:
    152.6 mm +48.5 mm versus Comet
    Width:
    74 mm +18.1 mm versus Comet
    Depth:
    7 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. X9s

    154 g

    +51.9 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. X9s

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

X9s 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

X9s: Original memory entry

64 GB · 512GB 4GB

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. X9s

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. X9s

    3320 mAh

    +2120 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. X9s

Everyday essentials
Everyday essentials — specifications for Comet, X9s.
SpecificationCometX9s
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 152.6 Х 74 Х 7 mm
Weight
  • 102.1 g
  • 154 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.8" inch
  • 5.5" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 64 GB
  • 512GB 4GB
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
  • 3320 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 7.1 (Nougat)
  • upgradable to Android 8.0 (Oreo); Funtouch 3.1
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm MSM8976 Snapdragon 652 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, X9s.
SpecificationCometX9s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 83.4 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 41.7%
  • 73.8%
PPI /points per inch/
  • 143 PPI
  • 401 PPI
Camera and Video
Camera and Video — specifications for Comet, X9s.
SpecificationCometX9s
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 3.15 MP
  • 16 MP
  • 1/2.8''
  • PDAF
Functions Unknown
  • LED flash
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 20 MP
  • Dual
Specifications Unknown
  • 20 MP 5 MP
  • depth sensor
Performance

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

Performance — specifications for Comet, X9s.
SpecificationCometX9s
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (4x1.8 GHz Cortex-A72 & 4x1.2 GHz Cortex A53)
Graphics processor GPU
  • No
  • Adreno 510
Antutu 7 score * Unknown
  • 102785
GeekBench 4 Single Core * Unknown
  • 1292
GeekBench 4 Multi-Core * Unknown
  • 4481
General specs
General specs — specifications for Comet, X9s.
SpecificationCometX9s
Release date
  • 2010
  • November
  • 2017
  • July
Colors
  • Black
  • Gold
  • Rose Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 350 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, X9s.
SpecificationCometX9s
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 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO & TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
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
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Comet, X9s.
SpecificationCometX9s
Radio
  • FM radio
  • No
Others Unknown
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, X9s.
SpecificationCometX9s
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 (front-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging