O2 XDA Flame vs Oppo Realme U1

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

    Realme U1: 22 g lighter

    XDA Flame:
    190 g
    Realme U1:
    168 g
  • Screen diagonal

    XDA Flame: 2.7 in smaller diagonal

    XDA Flame:
    3.6 in
    Realme U1:
    6.3 in
  • Rear camera layout

    XDA Flame:
    Single
    Realme U1:
    Dual
  • Depth

    Realme U1: 9.5 mm thinner

    XDA Flame:
    17.5 mm
    Realme U1:
    8 mm
  • Height

    XDA Flame: 31 mm shorter

    XDA Flame:
    126 mm
    Realme U1:
    157 mm
  • Release year

    XDA Flame:
    2007
    Realme U1:
    2018

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 Flame

    Height:
    126 mm
    Width:
    74 mm
    Depth:
    17.5 mm +9.5 mm versus Realme U1
  2. 2. Realme U1

    Height:
    157 mm +31 mm versus XDA Flame
    Width:
    74 mm
    Depth:
    8 mm

Weight

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

  1. 1. XDA Flame

    190 g

    +22 g versus Realme U1

  2. 2. Realme U1

    168 g

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 Flame

    Screen diagonal:
    3.6 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    40.1 cm²
  2. 2. Realme U1

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

Realme U1 has approximately 142.8% more rectangular screen area than XDA Flame.

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 Flame: Original memory entry

128 MB RAM · 2 GB ROM

Realme U1: 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 Flame

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

2. Realme U1

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 Flame

    1620 mAh

  2. 2. Realme U1

    3500 mAh

    +1880 mAh versus XDA Flame

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 Flame2. Realme U1

Everyday essentials
Everyday essentials — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Dimensions (HxWxD)
  • 126 Х 74 Х 17.5 mm
  • 157 Х 74 Х 8 mm
Weight
  • 190 g
  • 168 g
Technology
  • TFT
  • LTPS IPS LCD
Screen size
  • 3.6" inch
  • 6.3" 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.
  • 128 MB RAM
  • 2 GB ROM
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1620 mAh
  • Removable Li-Po
  • 3500 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 PocketPC
  • Android 8.1 (Oreo); ColorOS 5.2
Chipset Unknown
  • Mediatek Helio P70 (12nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 40.1 cm2
  • 97.4 cm2
Screen format
  • 4:3 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 43.0%
  • 83.9%
PPI /points per inch/
  • 222 PPI
  • 409 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 2 MP
  • AF
  • 13 MP
  • f/2.2
  • AF -2 MP
  • f/2.4
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 25 MP
  • Single
Specifications
  • VGA videocall camera
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Performance
Performance — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Processor CPU
  • Intel XScale PXA 270 520 MHz
  • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
General specs
General specs — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Release date
  • 2007
  • February
  • 2018
  • November
Colors
  • Silver
  • Ambitious Black
  • Brave Blue
  • Fiery Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 280 EUR
  • 140 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 6 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
SIM card
  • Mini-SIM
  • 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 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Speed
  • Yes
  • 384 kbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB
  • USB Host
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for XDA Flame, Realme U1.
SpecificationXDA FlameRealme U1
Dop
  • Infrared port - Pocket Office -Voice memo -MP3/AAC player -TV-out
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 5V/2A 10W