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T-Mobile Comet vs Xiaomi Redmi K30 Pro Zoom

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: 115.9 g lighter

      Comet:
      102.1 g
      Redmi K30 Pro Zoom:
      218 g

    • Width

      Comet: 19.5 mm narrower

      Comet:
      55.9 mm
      Redmi K30 Pro Zoom:
      75.4 mm

    • Screen diagonal

      Comet: 3.87 in smaller diagonal

      Comet:
      2.8 in
      Redmi K30 Pro Zoom:
      6.67 in

    • Chipset

      Comet:
      Qualcomm MSM7225 Snapdragon S1
      Redmi K30 Pro Zoom:
      Qualcomm SM8250 Snapdragon 865 (7 nm+)

    • Rear camera layout

      Comet:
      Single
      Redmi K30 Pro Zoom:
      Quad

    • Depth

      Redmi K30 Pro Zoom: 3.8 mm thinner

      Comet:
      12.7 mm
      Redmi K30 Pro Zoom:
      8.9 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 +3.8 mm versus Redmi K30 Pro Zoom

    2. 2. Redmi K30 Pro Zoom

      Height:
      163.3 mm +59.2 mm versus Comet
      Width:
      75.4 mm +19.5 mm versus Comet
      Depth:
      8.9 mm

    Weight

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

    1. 1. Comet

      102.1 g

    2. 2. Redmi K30 Pro Zoom

      218 g

      +115.9 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. Redmi K30 Pro Zoom

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

    Redmi K30 Pro Zoom has approximately 342.4% 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, Redmi K30 Pro Zoom, compared at the same storage capacity.
    StorageCometRedmi K30 Pro Zoom
    128 GB Unknown 8 GB RAM
    256 GB Unknown 8 GB RAM
    512 GB Unknown 12 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. Redmi K30 Pro Zoom

    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. Redmi K30 Pro Zoom

      4700 mAh

      +3500 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. Redmi K30 Pro Zoom

    Everyday essentials
    Everyday essentials — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Dimensions (HxWxD)
    • 104.1 Х 55.9 Х 12.7 mm
    • 163.3 Х 75.4 Х 8.9 mm
    Weight
    • 102.1 g
    • 218 g
    Technology
    • TFT
    • Super AMOLED
    Screen size
    • 2.8" inch
    • 6.67" 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
    • 512GB 12GB 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
    • 4700 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 2.2 (Froyo)
    • Android 10.0; MIUI 11
    Chipset
    • Qualcomm MSM7225 Snapdragon S1
    • Qualcomm SM8250 Snapdragon 865 (7 nm+)
    NFC Unknown
    • Yes
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 256K
    • 16M
    Screen area
    • 24.3 cm2
    • 107.4 cm2
    Screen format
    • 4:3 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 41.7%
    • 87.2%
    PPI /points per inch/
    • 143 PPI
    • 395 PPI
    Screen protection Unknown
    • Corning Gorilla Glass 5
    Camera and Video
    Camera and Video — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Rear camera, main
    • 3.15 MP
    • Single
    • 64 MP
    • Quad
    Camera specs
    • 3.15 MP
    • 64 MP
    • 26mm (wide)
    • 1/1.72''
    • 0.8µm
    • PDAF
    • OIS -8 MP
    • (telephoto)
    • OIS
    • 3x optical zoom -13 MP
    • 13mm (ultrawide) -2 MP
    • (depth)
    Functions Unknown
    • HDR
    Video
    • CIF
    • 1080p@30fps
    Front camera, selfie
    • 0 MP,
    • 20 MP
    • Single
    Specifications Unknown
    • Motorized pop-up 20 MP
    • (wide)
    • 1/3.4''
    • 0.8µm
    Performance
    Performance — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Processor CPU
    • 528 MHz ARM 11
    • Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
    Graphics processor GPU
    • No
    • Adreno 650
    General specs
    General specs — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Release date
    • 2010
    • November
    • 2020
    • March 24
    Colors
    • Black
    • Grey
    • Purple
    • White
    • Blue
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 150 EUR
    • $ 749
    Battery life
    • Stand by time- Up to 288 h Talking time- Up to 9 h
    		 Unknown
    Body build Unknown
    • Glass front (Gorilla Glass 5)
    • glass back (Gorilla Glass 5)
    • aluminum frame
    Communication and Connectivity
    Communication and Connectivity — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    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)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 34(2000)
    • 38(2600)
    • 39(1900)
    • 40(2300)
    • 41(2500) -5G - 5G band 1(2100)
    • 41(2500)
    • 78(3500)
    • 79(4700); SA/NSA
    Speed
    • HSPA 7.2/0.384 Mbps
    • HSPA 42.2/5.76 Mbps
    • LTE-A; 5G
    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/ax
    • dual-band
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • Yes
    • with dual-band A-GPS
    • GLONASS
    • BDS
    • GALILEO
    • QZSS
    USB
    • microUSB 2.0
    • 2.0
    • Type-C 1.0 reversible connector
    • USB On-The-Go
    Bluetooth
    • 2.0
    • A2DP
    • 5.1
    • A2DP
    • LE
    • aptX HD
    • aptX Adaptive
    Music and Audio
    Music and Audio — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    Radio
    • FM radio
    		 Unknown
    Others Unknown
    • HDR10+ -DCI-P3 100% -500 nits typ. brightness (advertised)
    • 24-bit/192kHz audio
    Other features
    Other features — specifications for Comet, Redmi K30 Pro Zoom.
    SpecificationCometRedmi K30 Pro Zoom
    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
    • barometer
    • Infrared port - Fast charging 33W
    • 100% in 63 min (advertised) -USB Power Delivery -Quick Charge 4+