T-Mobile Comet vs vivo NEX A

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: 96.9 g lighter

    Comet:
    102.1 g
    NEX A:
    199 g
  • Width

    Comet: 21.1 mm narrower

    Comet:
    55.9 mm
    NEX A:
    77 mm
  • Screen diagonal

    Comet: 3.79 in smaller diagonal

    Comet:
    2.8 in
    NEX A:
    6.59 in
  • Chipset

    Comet:
    Qualcomm MSM7225 Snapdragon S1
    NEX A:
    Qualcomm SDM710 Snapdragon 710 (10 nm)
  • Rear camera layout

    Comet:
    Single
    NEX A:
    Dual
  • Depth

    NEX A: 4.7 mm thinner

    Comet:
    12.7 mm
    NEX A:
    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 +4.7 mm versus NEX A
  2. 2. NEX A

    Height:
    162 mm +57.9 mm versus Comet
    Width:
    77 mm +21.1 mm versus Comet
    Depth:
    8 mm

Weight

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

  1. 1. Comet

    102.1 g

  2. 2. NEX A

    199 g

    +96.9 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Comet

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. NEX A

    NEX A: Screen geometry unavailable or conflicting.

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, NEX A, compared at the same storage capacity.
StorageCometNEX A
128 GB Unknown 6 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. NEX A

NFC:
Unknown
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. NEX A

    4000 mAh

    +2800 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. NEX A

Everyday essentials
Everyday essentials — specifications for Comet, NEX A.
SpecificationCometNEX A
Dimensions (HxWxD)
  • 104.1 Х 55.9 Х 12.7 mm
  • 162 Х 77 Х 8 mm
Weight
  • 102.1 g
  • 199 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 2.8" inch
  • 6.59" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2316 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128 GB
  • 6 GB 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
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 8.1 (Oreo); Funtouch 4
Chipset
  • Qualcomm MSM7225 Snapdragon S1
  • Qualcomm SDM710 Snapdragon 710 (10 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Comet, NEX A.
SpecificationCometNEX A
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 107.3 cm2
Screen format
  • 4:3 (height:width)
Unknown
Screen to body ratio
  • 41.7%
  • 86.0%
PPI /points per inch/
  • 143 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for Comet, NEX A.
SpecificationCometNEX A
Rear camera, main
  • 3.15 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 3.15 MP
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • 4-axis OIS
  • dual pixel PDAF -5 MP
  • f/2.4
  • depth sensor
Functions Unknown
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • CIF
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • Motorized pop-up 8 MP
  • f/2.0
Performance

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

Performance — specifications for Comet, NEX A.
SpecificationCometNEX A
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (2x2.2 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver)
Graphics processor GPU
  • No
  • Adreno 616
GeekBench 4 Single Core * Unknown
  • 1855
GeekBench 4 Multi-Core * Unknown
  • 5940
General specs
General specs — specifications for Comet, NEX A.
SpecificationCometNEX A
Release date
  • 2010
  • November
  • 2018
  • June
Colors
  • Black
  • Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 600 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, NEX A.
SpecificationCometNEX A
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 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat15 800/150 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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • BDS
  • GNSS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Comet, NEX A.
SpecificationCometNEX A
Radio
  • FM radio
  • To be confirmed
Others Unknown
  • 32-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Comet, NEX A.
SpecificationCometNEX A
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 - Fast battery charging 22W