T-Mobile Comet vs Xiaomi Mi 4s

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: 30.9 g lighter

    Comet:
    102.1 g
    Mi 4s:
    133 g
  • Width

    Comet: 14.9 mm narrower

    Comet:
    55.9 mm
    Mi 4s:
    70.8 mm
  • Screen diagonal

    Comet: 2.2 in smaller diagonal

    Comet:
    2.8 in
    Mi 4s:
    5 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Mi 4s:
    Qualcomm MSM8992 Snapdragon 808 (20 nm)
  • Depth

    Mi 4s: 4.9 mm thinner

    Comet:
    12.7 mm
    Mi 4s:
    7.8 mm
  • Height

    Comet: 35.2 mm shorter

    Comet:
    104.1 mm
    Mi 4s:
    139.3 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 +4.9 mm versus Mi 4s
  2. 2. Mi 4s

    Height:
    139.3 mm +35.2 mm versus Comet
    Width:
    70.8 mm +14.9 mm versus Comet
    Depth:
    7.8 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. Mi 4s

    133 g

    +30.9 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. Mi 4s

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

Mi 4s 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.

Recorded RAM for Comet, Mi 4s, compared at the same storage capacity.
StorageCometMi 4s
64 GB Unknown 3 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. Mi 4s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. Mi 4s

    3260 mAh

    +2060 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. Mi 4s

Everyday essentials
Everyday essentials — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 139.3 Х 70.8 Х 7.8 mm
Weight
  • 102.1 g
  • 133 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 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
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3260 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 5.1 (Lollipop)
  • upgradable to 7.0 (Nougat); MIUI 10
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm MSM8992 Snapdragon 808 (20 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 68.9 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 41.7%
  • 69.9%
PPI /points per inch/
  • 143 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • PDAF
  • f/2.0
Functions Unknown
  • Dual-LED dual-tone flash
  • panorama
  • HDR
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, Mi 4s.
SpecificationCometMi 4s
Processor CPU
  • 528 MHz ARM 11
  • Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)
Graphics processor GPU
  • No
  • Adreno 418
Antutu 7 score * Unknown
  • 61393
GeekBench 4 Single Core * Unknown
  • 946
GeekBench 4 Multi-Core * Unknown
  • 1948
GeekBench 4 RenderScript * Unknown
  • 2422
GeekBench 5 Single Core * Unknown
  • 175
GeekBench 5 Multi-Core * Unknown
  • 431
General specs
General specs — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
Release date
  • 2010
  • November
  • 2016
  • February
Colors
  • Black
  • Black
  • White
  • Gold
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 220 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, Mi 4s.
SpecificationCometMi 4s
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Micro-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 / 1900 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE Cat4 150/50 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
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • A2DP
  • 4.1
  • A2DP
Music and Audio
Music and Audio — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, Mi 4s.
SpecificationCometMi 4s
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 (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging: 40% in 60 min (Quick Charge 2.0)