T-Mobile Comet vs Xiaomi Redmi 5a

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 34.9 g lighter

    Comet:
    102.1 g
    Redmi 5a:
    137 g
  • Width

    Comet: 14.2 mm narrower

    Comet:
    55.9 mm
    Redmi 5a:
    70.1 mm
  • Screen diagonal

    Comet: 2.2 in smaller diagonal

    Comet:
    2.8 in
    Redmi 5a:
    5 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Redmi 5a:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Depth

    Redmi 5a: 4.3 mm thinner

    Comet:
    12.7 mm
    Redmi 5a:
    8.4 mm
  • Height

    Comet: 36.3 mm shorter

    Comet:
    104.1 mm
    Redmi 5a:
    140.4 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 +4.3 mm versus Redmi 5a
  2. 2. Redmi 5a

    Height:
    140.4 mm +36.3 mm versus Comet
    Width:
    70.1 mm +14.2 mm versus Comet
    Depth:
    8.4 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. Redmi 5a

    137 g

    +34.9 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 5a

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

Redmi 5a has approximately 183.9% 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.

Redmi 5a: Original memory entry

32 GB · 3 GB RAM 16 GB · 2 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 5a

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

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 5a

    3000 mAh

    +1800 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 5a

Everyday essentials
Everyday essentials — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 140.4 Х 70.1 Х 8.4 mm
Weight
  • 102.1 g
  • 137 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 128 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 7.1.2 (Nougat); MIUI 10
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 68.0 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 41.7%
  • 69.1%
PPI /points per inch/
  • 143 PPI
  • 296 PPI
Camera and Video
Camera and Video — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • PDAF
  • f/2.2
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Processor CPU
  • 528 MHz ARM 11
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • No
  • Adreno 308
Antutu 7 score * Unknown
  • 32456
GeekBench 4 Single Core * Unknown
  • 660
GeekBench 4 Multi-Core * Unknown
  • 2014
GeekBench 4 RenderScript * Unknown
  • 1368
GeekBench 5 Single Core * Unknown
  • 124
GeekBench 5 Multi-Core * Unknown
  • 410
General specs
General specs — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Release date
  • 2010
  • November
  • 2017
  • November
Colors
  • Black
  • Gold
  • Dark Gray
  • Rose Gold
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 110 EUR
Battery life
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
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 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, Redmi 5a.
SpecificationCometRedmi 5a
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 Accelerometer
  • proximity
  • Infrared port - For India; China