Oppo R15 vs Xiaomi MI-2a

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.

  • Display technology

    OLED versus LCD

    R15:
    OLED
    MI-2a:
    LCD
  • Weight

    MI-2a: 42 g lighter

    R15:
    175 g
    MI-2a:
    133 g
  • Width

    MI-2a: 8.7 mm narrower

    R15:
    75.2 mm
    MI-2a:
    66.5 mm
  • Screen diagonal

    MI-2a: 1.78 in smaller diagonal

    R15:
    6.28 in
    MI-2a:
    4.5 in
  • Rear camera layout

    R15:
    Dual
    MI-2a:
    Single
  • Depth

    R15: 2.1 mm thinner

    R15:
    7.4 mm
    MI-2a:
    9.5 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. R15

    Height:
    155.1 mm +22.1 mm versus MI-2a
    Width:
    75.2 mm +8.7 mm versus MI-2a
    Depth:
    7.4 mm
  2. 2. MI-2a

    Height:
    133 mm
    Width:
    66.5 mm
    Depth:
    9.5 mm +2.1 mm versus R15

Weight

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

  1. 1. R15

    175 g

    +42 g versus MI-2a

  2. 2. MI-2a

    133 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. R15

    Screen diagonal:
    6.28 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    98.4 cm²
  2. 2. MI-2a

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²

R15 has approximately 76.3% more rectangular screen area than MI-2a.

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.

Recorded RAM for R15, MI-2a, compared at the same storage capacity.
StorageR15MI-2a
16 GB Unknown 1 GB 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. R15

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

2. MI-2a

NFC:
Yes
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. R15

    3450 mAh

    +1420 mAh versus MI-2a

  2. 2. MI-2a

    2030 mAh

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. R152. MI-2a

Everyday essentials
Everyday essentials — specifications for R15, MI-2a.
SpecificationR15MI-2a
Dimensions (HxWxD)
  • 155.1 Х 75.2 Х 7.4 mm
  • 133 Х 66.5 Х 9.5 mm
Weight
  • 175 g
  • 133 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 6.28" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2280 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 4/6 GB RAM
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3450 mAh
  • Non-removable Li-Po
  • 2030 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5
  • Android 4.1 (Jelly Bean)
Chipset
  • Mediatek MT6771 Helio P60 (12 nm)
  • Xiaolong S4 Pro
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R15, MI-2a.
SpecificationR15MI-2a
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.9 cm2
  • 55.8 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.8%
  • 63.1%
PPI /points per inch/
  • 401 PPI
  • 326 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for R15, MI-2a.
SpecificationR15MI-2a
Rear camera, main
  • 16 MP
  • Dual
  • 8 MP
  • Single
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.6''
  • 1.22µm
  • PDAF -5 MP
  • f/2.2
  • depth sensor
  • 8 MP
  • AF
  • f/2.0
Functions
  • LED flash
  • HDR
  • panorama
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 2 MP
Performance

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

Performance — specifications for R15, MI-2a.
SpecificationR15MI-2a
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Dual-core 1.7 GHz
Graphics processor GPU
  • Mali-G72 MP3
  • Adreno 320
Antutu 7 score *
  • 140520
  • 21326
GeekBench 4 Single Core *
  • 1928
  • 742
GeekBench 4 Multi-Core *
  • 4904
  • 1151
GeekBench 4 RenderScript * Unknown
  • 1277
General specs
General specs — specifications for R15, MI-2a.
SpecificationR15MI-2a
Release date
  • 2018
  • March
  • 2013
Colors
  • Hot Red
  • Snow White
  • Star Purple
  • Fantasy Pink
  • Black (front panel)
  • 4 color options (back panel)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 460 EUR
Unknown
Body build
  • Front glass
  • aluminum body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for R15, MI-2a.
SpecificationR15MI-2a
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • 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)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat13 600/100 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.2
  • A2DP
  • LE
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for R15, MI-2a.
SpecificationR15MI-2a
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for R15, MI-2a.
SpecificationR15MI-2a
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: VOOC Flash Charge 5V/4A
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass