BLU Dash 3.5 vs Oppo R15

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

    Dash 3.5: 65 g lighter

    Dash 3.5:
    110 g
    R15:
    175 g
  • Width

    Dash 3.5: 13.2 mm narrower

    Dash 3.5:
    62 mm
    R15:
    75.2 mm
  • Screen diagonal

    Dash 3.5: 2.78 in smaller diagonal

    Dash 3.5:
    3.5 in
    R15:
    6.28 in
  • Chipset

    Dash 3.5:
    Mediatek MT6572M (28 nm)
    R15:
    Mediatek MT6771 Helio P60 (12 nm)
  • Rear camera layout

    Dash 3.5:
    Single
    R15:
    Dual
  • Depth

    R15: 4.1 mm thinner

    Dash 3.5:
    11.5 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. Dash 3.5

    Height:
    115 mm
    Width:
    62 mm
    Depth:
    11.5 mm +4.1 mm versus R15
  2. 2. R15

    Height:
    155.1 mm +40.1 mm versus Dash 3.5
    Width:
    75.2 mm +13.2 mm versus Dash 3.5
    Depth:
    7.4 mm

Weight

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

  1. 1. Dash 3.5

    110 g

  2. 2. R15

    175 g

    +65 g versus Dash 3.5

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. Dash 3.5

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 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 169.9% more rectangular screen area than Dash 3.5.

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.

Dash 3.5: Original memory entry

512 MB · 256 MB RAM

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. Dash 3.5

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

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. Dash 3.5

    1300 mAh

  2. 2. R15

    3450 mAh

    +2150 mAh versus Dash 3.5

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. Dash 3.52. R15

Everyday essentials
Everyday essentials — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Dimensions (HxWxD)
  • 115 Х 62 Х 11.5 mm
  • 155.1 Х 75.2 Х 7.4 mm
Weight
  • 110 g
  • 175 g
Technology
  • TFT
  • AMOLED
Screen size
  • 3.5" inch
  • 6.28" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 128 GB
  • 4/6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 3450 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Android 8.1 (Oreo); ColorOS 5
Chipset
  • Mediatek MT6572M (28 nm)
  • Mediatek MT6771 Helio P60 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 36.5 cm2
  • 98.9 cm2
Screen format
  • 3:2 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 51.2%
  • 84.8%
PPI /points per inch/
  • 165 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 3.15 MP
  • 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 MP,
  • 20 MP
  • Single
Specifications Unknown
  • 20 MP
  • f/2.0
Performance

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

Performance — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Processor CPU
  • Dual-core 1.0 GHz Cortex-A7
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400
  • 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 Dash 3.5, R15.
SpecificationDash 3.5R15
Release date
  • 2012
  • September
  • 2018
  • March
Colors
  • Black
  • White
  • Hot Red
  • Snow White
  • Star Purple
  • Fantasy Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 460 EUR
Battery life
  • Stand by time- Up to 700 h (2G) / Up to 500 h (3G) Talking time- Up to 15 h (2G) / Up to 10 h (3G)
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • 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 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat13 600/100 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • 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
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
  • EDR
Music and Audio
Music and Audio — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Radio
  • Stereo FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Dash 3.5, R15.
SpecificationDash 3.5R15
Dop
  • Sensors Accelerometer MP3/AAC/WMA/WAV player -DivX/XviD/MP4/H.264/WMV player -Document viewer/editor -Photo viewer/editor D161 Single SIM D171 Dual SIM
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: VOOC Flash Charge 5V/4A