O2 XDA Atom vs Oppo Realme 3

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 Atom: 35 g lighter

    XDA Atom:
    140 g
    Realme 3:
    175 g
  • Width

    XDA Atom: 17.6 mm narrower

    XDA Atom:
    58 mm
    Realme 3:
    75.6 mm
  • Screen diagonal

    XDA Atom: 3.52 in smaller diagonal

    XDA Atom:
    2.7 in
    Realme 3:
    6.22 in
  • Depth

    Realme 3: 10.2 mm thinner

    XDA Atom:
    18.5 mm
    Realme 3:
    8.3 mm
  • Height

    XDA Atom: 54.1 mm shorter

    XDA Atom:
    102 mm
    Realme 3:
    156.1 mm
  • Release year

    XDA Atom:
    2005
    Realme 3:
    2019

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 Atom

    Height:
    102 mm
    Width:
    58 mm
    Depth:
    18.5 mm +10.2 mm versus Realme 3
  2. 2. Realme 3

    Height:
    156.1 mm +54.1 mm versus XDA Atom
    Width:
    75.6 mm +17.6 mm versus XDA Atom
    Depth:
    8.3 mm

Weight

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

  1. 1. XDA Atom

    140 g

  2. 2. Realme 3

    175 g

    +35 g versus XDA Atom

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 Atom

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

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 cm²

Realme 3 has approximately 327.7% more rectangular screen area than XDA Atom.

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.

XDA Atom: Original memory entry

64 MB RAM · 128 MB ROM

Realme 3: Original memory entry

64 GB · 4 GB RAM 32 GB · 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. XDA Atom

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

2. Realme 3

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. XDA Atom

    1530 mAh

  2. 2. Realme 3

    4230 mAh

    +2700 mAh versus XDA Atom

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 Atom2. Realme 3

Everyday essentials
Everyday essentials — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Dimensions (HxWxD)
  • 102 Х 58 Х 18.5 mm
  • 156.1 Х 75.6 Х 8.3 mm
Weight
  • 140 g
  • 175 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.7" inch
  • 6.22" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • miniSD
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 4230 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Android 9.0 (Pie); ColorOS 6
Chipset Unknown
  • Mediatek MT6771 Helio P60 (12 nm) -Mediatek Helio P70 (12nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 22.6 cm2
  • 96.6 cm2
Screen format
  • 4:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 38.2%
  • 81.8%
PPI /points per inch/
  • 148 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • 13 MP
  • f/1.8
  • 1/3''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 13 MP
  • Single
Specifications Unknown
  • 13 MP
  • f/2.0
  • 1/3''
  • 1.12µm
Performance

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

Performance — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Processor CPU
  • Intel PXA272 416 MHz
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) -Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 137126
Antutu 8 score * Unknown
  • 148128
GeekBench 5 Single Core * Unknown
  • 273
GeekBench 5 Multi-Core * Unknown
  • 1126
General specs
General specs — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Release date
  • 2005
  • November
  • 2019
  • March
Colors
  • Silver
  • Black
  • Dynamic Black
  • Radiant Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 9000 INR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 5 h 30 min
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • 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)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500) LTE band 1(2100)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat12 600/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 1.2
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Radio
  • FM radio
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Atom, Realme 3.
SpecificationXDA AtomRealme 3
Dop
  • Infrared port - Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player - Produced by Quanta Computer. Functionally identical to HP iPAQ rw6815
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 10W