O2 XDA Serra vs Oppo Realme X

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 Serra: 26 g lighter

    XDA Serra:
    165 g
    Realme X:
    191 g
  • Width

    XDA Serra: 25 mm narrower

    XDA Serra:
    51 mm
    Realme X:
    76 mm
  • Screen diagonal

    XDA Serra: 3.73 in smaller diagonal

    XDA Serra:
    2.8 in
    Realme X:
    6.53 in
  • Chipset

    XDA Serra:
    Qualcomm MSM7201A
    Realme X:
    Qualcomm SDM710 Snapdragon 710 (10 nm)
  • Rear camera layout

    XDA Serra:
    Single
    Realme X:
    Dual
  • Depth

    Realme X: 8.7 mm thinner

    XDA Serra:
    18.1 mm
    Realme X:
    9.4 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 Serra

    Height:
    102 mm
    Width:
    51 mm
    Depth:
    18.1 mm +8.7 mm versus Realme X
  2. 2. Realme X

    Height:
    161.2 mm +59.2 mm versus XDA Serra
    Width:
    76 mm +25 mm versus XDA Serra
    Depth:
    9.4 mm

Weight

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

  1. 1. XDA Serra

    165 g

  2. 2. Realme X

    191 g

    +26 g versus XDA Serra

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 Serra

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

    Screen diagonal:
    6.53 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    104.7 cm²

Realme X has approximately 331.1% more rectangular screen area than XDA Serra.

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 Serra: Original memory entry

288 MB RAM · 512 MB ROM

Realme X: Original memory entry

128/256 GB · 8 GB RAM 64 GB · 4/6 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. XDA Serra

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. Realme X

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. XDA Serra

    1340 mAh

  2. 2. Realme X

    3765 mAh

    +2425 mAh versus XDA Serra

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 Serra2. Realme X

Everyday essentials
Everyday essentials — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Dimensions (HxWxD)
  • 102 Х 51 Х 18.1 mm
  • 161.2 Х 76 Х 9.4 mm
Weight
  • 165 g
  • 191 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.8" inch
  • 6.53" inch
Screen resolution
  • 480 x 640 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 288 MB RAM
  • 512 MB ROM
  • 128/256 GB
  • 8 GB RAM 64 GB
  • 4/6 GB RAM
Memory card support
  • microSD (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1340 mAh
  • Removable Li-Ion
  • 3765 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 9.0 (Pie); ColorOS 6
Chipset
  • Qualcomm MSM7201A
  • Qualcomm SDM710 Snapdragon 710 (10 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 105.2 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 46.7%
  • 85.9%
PPI /points per inch/
  • 286 PPI
  • 394 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Dual
Camera specs
  • 3.15 MP
  • AF
  • 48 MP
  • f/1.7
  • (wide)
  • 26mm (wide)
  • 1/2''
  • 0.8µm
  • PDAF -5 MP
  • f/2.4
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA videocall camera
  • Motorized pop-up 16 MP
  • f/2.0
  • 25mm (wide)
  • 1/3''
  • 1.0µm
Performance

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

Performance — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
Graphics processor GPU
  • Adreno 130
  • Adreno 616
GeekBench 5 Single Core * Unknown
  • 334
GeekBench 5 Multi-Core * Unknown
  • 1444
General specs
General specs — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Release date
  • 2008
  • July
  • 2019
  • May
Colors
  • Black
  • Steam white
  • Punk Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 160 EUR
Battery life
  • Stand by time- Up to 406 h Talking time- Up to 8 h
Unknown
Body build Unknown
  • Front glass (Gorilla Glass 5)
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
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 - China -3G - HSDPA 850 / 900 / 1700(AWS) / 2100 -4G - LTE band 1(2100)
  • 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 42.2/11.5 Mbps
  • LTE-A (2CA) Cat6 300/75 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • 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
  • miniUSB
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
  • aptX HD
Music and Audio
Music and Audio — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
Other features
Other features — specifications for XDA Serra, Realme X.
SpecificationXDA SerraRealme X
Dop
  • Sensors Accelerometer MP3/WAV/WMA player -MP4/WMV/3gp player -Pocket Office -Voice memo -Predictive text input
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 20W: 55% in 30 min (VOOC 3.0) - Versions: RMX1901