O2 XDA Stellar vs Oppo R15

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

    R15: 15 g lighter

    XDA Stellar:
    190 g
    R15:
    175 g
  • Width

    XDA Stellar: 16.2 mm narrower

    XDA Stellar:
    59 mm
    R15:
    75.2 mm
  • Screen diagonal

    XDA Stellar: 3.48 in smaller diagonal

    XDA Stellar:
    2.8 in
    R15:
    6.28 in
  • Chipset

    XDA Stellar:
    Qualcomm MSM7200
    R15:
    Mediatek MT6771 Helio P60 (12 nm)
  • Rear camera layout

    XDA Stellar:
    Single
    R15:
    Dual
  • Depth

    R15: 11.2 mm thinner

    XDA Stellar:
    18.6 mm
    R15:
    7.4 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 Stellar

    Height:
    112 mm
    Width:
    59 mm
    Depth:
    18.6 mm +11.2 mm versus R15
  2. 2. R15

    Height:
    155.1 mm +43.1 mm versus XDA Stellar
    Width:
    75.2 mm +16.2 mm versus XDA Stellar
    Depth:
    7.4 mm

Weight

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

  1. 1. XDA Stellar

    190 g

    +15 g versus R15

  2. 2. R15

    175 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 Stellar

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. R15

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

R15 has approximately 305.4% more rectangular screen area than XDA Stellar.

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 Stellar: Original memory entry

128 MB RAM · 256 MB ROM

R15: Original memory entry

128 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 Stellar

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

2. R15

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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 Stellar

    1350 mAh

  2. 2. R15

    3450 mAh

    +2100 mAh versus XDA Stellar

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 Stellar2. R15

Everyday essentials
Everyday essentials — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Dimensions (HxWxD)
  • 112 Х 59 Х 18.6 mm
  • 155.1 Х 75.2 Х 7.4 mm
Weight
  • 190 g
  • 175 g
Technology
  • TFT
  • AMOLED
Screen size
  • 2.8" inch
  • 6.28" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 128 GB
  • 4/6 GB RAM
Memory card support
  • microSD
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Removable Li-Ion
  • 3450 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 8.1 (Oreo); ColorOS 5
Chipset
  • Qualcomm MSM7200
  • Mediatek MT6771 Helio P60 (12 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 98.9 cm2
Screen format
  • 4:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 36.7%
  • 84.8%
PPI /points per inch/
  • 143 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 3.15 MP
  • AF
  • 16 MP
  • f/1.7
  • 1/2.6''
  • 1.22µm
  • PDAF -5 MP
  • f/2.2
  • depth sensor
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 20 MP
  • Single
Specifications
  • VGA videocall camera
  • 20 MP
  • f/2.0
Performance

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

Performance — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Processor CPU
  • 400 MHz ARM 11
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 130
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 140520
GeekBench 4 Single Core * Unknown
  • 1928
GeekBench 4 Multi-Core * Unknown
  • 4904
General specs
General specs — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Release date
  • 2007
  • November
  • 2018
  • March
Colors
  • Silver
  • Hot Red
  • Snow White
  • Star Purple
  • Fantasy Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 460 EUR
Battery life
  • Stand by time- Up to 365 h Talking time- Up to 5 h
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
SIM card
  • Mini-SIM
  • Hybrid 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)
  • 7(2600)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat13 600/100 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/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
USB
  • 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
  • EDR
Music and Audio
Music and Audio — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Radio
  • No
  • No
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for XDA Stellar, R15.
SpecificationXDA StellarR15
Dop
  • Pocket Office -Business card reader -Voice memo -Media Player 10 HTC Kaiser platform
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: VOOC Flash Charge 5V/4A