O2 XDA Comet vs Xiaomi Poco X2

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

    XDA Comet: 63 g lighter

    XDA Comet:
    145 g
    Poco X2:
    208 g
  • Width

    XDA Comet: 18.6 mm narrower

    XDA Comet:
    58 mm
    Poco X2:
    76.6 mm
  • Screen diagonal

    XDA Comet: 3.97 in smaller diagonal

    XDA Comet:
    2.7 in
    Poco X2:
    6.67 in
  • Rear camera layout

    XDA Comet:
    Single
    Poco X2:
    Quad
  • Depth

    Poco X2: 10.2 mm thinner

    XDA Comet:
    19 mm
    Poco X2:
    8.8 mm
  • Height

    XDA Comet: 59.3 mm shorter

    XDA Comet:
    106 mm
    Poco X2:
    165.3 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. XDA Comet

    Height:
    106 mm
    Width:
    58 mm
    Depth:
    19 mm +10.2 mm versus Poco X2
  2. 2. Poco X2

    Height:
    165.3 mm +59.3 mm versus XDA Comet
    Width:
    76.6 mm +18.6 mm versus XDA Comet
    Depth:
    8.8 mm

Weight

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

  1. 1. XDA Comet

    145 g

  2. 2. Poco X2

    208 g

    +63 g versus XDA 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. XDA Comet

    Screen diagonal:
    2.7 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    22.6 cm²
  2. 2. Poco X2

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

Poco X2 has approximately 375.8% more rectangular screen area than XDA 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 XDA Comet, Poco X2, compared at the same storage capacity.
StorageXDA CometPoco X2
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
256 GB Unknown 8 GB RAM
XDA Comet: Original memory entry

64 MB RAM · 1 GB ROM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. XDA Comet

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details miniSD

2. Poco X2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (uses shared SIM slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. XDA Comet2. Poco X2

Everyday essentials
Everyday essentials — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Dimensions (HxWxD)
  • 106 Х 58 Х 19 mm
  • 165.3 Х 76.6 Х 8.8 mm
Weight
  • 145 g
  • 208 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.7" 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.
  • 64 MB RAM
  • 1 GB ROM
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 256GB 8GB RAM
Memory card support
  • miniSD
  • microSDXC (uses shared SIM slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 4500 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 10.0; MIUI 11
Chipset Unknown
  • Qualcomm SDM730 Snapdragon 730G (8 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 22.6 cm2
  • 107.4 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 36.7%
  • 84.8%
PPI /points per inch/
  • 148 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Rear camera, main
  • 2 MP
  • Single
  • 64 MP
  • Quad
Camera specs
  • 2 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 -2 MP
  • f/2.4
  • 1/5.0''
  • 1.75µm (dedicated macro camera) -2 MP
  • 1.75µm
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 20 MP
  • Dual
Specifications
  • VGA videocall camera
  • 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 XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Processor CPU
  • Intel XScale PXA 270 620 MHz
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
Graphics processor GPU Unknown
  • Adreno 618
Antutu 8 score * Unknown
  • 279215
GeekBench 5 Single Core * Unknown
  • 489
GeekBench 5 Multi-Core * Unknown
  • 1576
General specs
General specs — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Release date
  • 2007
  • September
  • 2020
  • February
Colors
  • Silver
  • Atlantis Blue
  • Matrix Purple
  • Phoenix Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • miniUSB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 1.2
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 1.08 W/kg (head) 0.62 W/kg (body)
Music and Audio
Music and Audio — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • recording
Others
  • Handwriting recognition
  • HDR10 -120Hz refresh rate -500 nits typ. brightness
  • 24-bit/192kHz audio
Other features
Other features — specifications for XDA Comet, Poco X2.
SpecificationXDA CometPoco X2
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 27W (100% in 68 min) - Splash resistant - Also known as Xiaomi POCO X2 Special Edition