T-Mobile Comet vs Xiaomi Redmi K30 5G

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: 105.9 g lighter

    Comet:
    102.1 g
    Redmi K30 5G:
    208 g
  • Width

    Comet: 20.7 mm narrower

    Comet:
    55.9 mm
    Redmi K30 5G:
    76.6 mm
  • Screen diagonal

    Comet: 3.87 in smaller diagonal

    Comet:
    2.8 in
    Redmi K30 5G:
    6.67 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Redmi K30 5G:
    Qualcomm SDM765 Snapdragon 765G (7 nm)
  • Rear camera layout

    Comet:
    Single
    Redmi K30 5G:
    Quad
  • Depth

    Redmi K30 5G: 3.9 mm thinner

    Comet:
    12.7 mm
    Redmi K30 5G:
    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 Redmi K30 5G
  2. 2. Redmi K30 5G

    Height:
    165.3 mm +61.2 mm versus Comet
    Width:
    76.6 mm +20.7 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. Redmi K30 5G

    208 g

    +105.9 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 5G

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

Redmi K30 5G 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 5G, compared at the same storage capacity.
StorageCometRedmi K30 5G
64 GB Unknown 6 GB RAM
128 GB Unknown 6 / 8 GB RAM Alternative RAM configurations
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. Redmi K30 5G

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 5G

    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. Redmi K30 5G

Everyday essentials
Everyday essentials — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 165.3 Х 76.6 Х 8.8 mm
Weight
  • 102.1 g
  • 208 g
Technology
  • TFT
  • IPS LCD
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
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 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
  • 4500 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 10; MIUI 11
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm SDM765 Snapdragon 765G (7 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
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%
  • 84.8%
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 5G.
SpecificationCometRedmi K30 5G
Rear camera, main
  • 3.15 MP
  • Single
  • 64 MP
  • Quad
Camera specs
  • 3.15 MP
  • 64 MP
  • f/1.9
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1/5.0"
  • 1.75µm -2 MP
  • (depth)
Functions Unknown
  • HDR
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 20 MP
  • Dual
Specifications Unknown
  • 20 MP
  • f/2.2
  • 27mm (wide)
  • 1/3.4''
  • 0.8µm 2 MP
  • f/2.4
  • 1/5''
  • 1.75µm
  • depth sensor
Performance

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

Performance — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
Graphics processor GPU
  • No
  • Adreno 620
Antutu 8 score * Unknown
  • 325172
GeekBench 5 Single Core * Unknown
  • 620
GeekBench 5 Multi-Core * Unknown
  • 1850
General specs
General specs — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
Release date
  • 2010
  • November
  • 2019
  • December
Colors
  • Black
  • Blue
  • Red
  • Purple
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 260 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Unknown
Body build Unknown
  • Front/back glass (Gorilla Glass 5)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
SIM card
  • Mini-SIM
  • Hybrid 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 / 1900 / 2100 -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 41(2500)
  • 78(3500); Sub6
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • 5G (2+ 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 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
Music and Audio
Music and Audio — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
Radio
  • FM radio
  • FM radio
Others Unknown
  • HDR10 -120Hz
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, Redmi K30 5G.
SpecificationCometRedmi K30 5G
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 (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 30W (100% in 57 min)