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T-Mobile Comet vs TECNO Spark CM

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: 69.9 g lighter

    Comet:
    102.1 g
    Spark CM:
    172 g
  • Width

    Comet: 15.8 mm narrower

    Comet:
    55.9 mm
    Spark CM:
    71.7 mm
  • Screen diagonal

    Comet: 2.9 in smaller diagonal

    Comet:
    2.8 in
    Spark CM:
    5.7 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    Spark CM:
    Mediatek MT6737
  • Depth

    Spark CM: 7.1 mm thinner

    Comet:
    12.7 mm
    Spark CM:
    5.6 mm
  • Height

    Comet: 48.1 mm shorter

    Comet:
    104.1 mm
    Spark CM:
    152.2 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 +7.1 mm versus Spark CM
  2. 2. Spark CM

    Height:
    152.2 mm +48.1 mm versus Comet
    Width:
    71.7 mm +15.8 mm versus Comet
    Depth:
    5.6 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. Spark CM

    172 g

    +69.9 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. Spark CM

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²

Spark CM has approximately 245.3% 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, Spark CM, compared at the same storage capacity.
StorageCometSpark CM
16 GB Unknown 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. Spark CM

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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. Spark CM

    3050 mAh

    +1850 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. Spark CM

Everyday essentials
Everyday essentials — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 152.2 Х 71.7 Х 5.6 mm
Weight
  • 102.1 g
  • 172 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 5.7" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 3050 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 7.0 (Nougat)
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Mediatek MT6737
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 83.8 cm2
Screen format
  • 4:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 41.7%
  • 76.8%
PPI /points per inch/
  • 143 PPI
  • 282 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • 13 MP
  • f/2.0
  • AF
Functions Unknown
  • LED flash
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
Performance
Performance — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Processor CPU
  • 528 MHz ARM 11
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • No
  • Mali-T720MP2
General specs
General specs — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Release date
  • 2010
  • November
  • 2017
  • December
Colors
  • Black
  • Midnight Black
  • Champagne Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
Unknown
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, Spark CM.
SpecificationCometSpark CM
SIM card
  • Mini-SIM
  • Dual SIM (Micro-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 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE-A
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
Bluetooth
  • 2.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Comet, Spark CM.
SpecificationCometSpark CM
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Comet, Spark CM.
SpecificationCometSpark CM
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
  • proximity