Oppo R7 Plus vs Samsung Galaxy M31

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.

  • Width

    Galaxy M31: 6.9 mm narrower

    R7 Plus:
    82 mm
    Galaxy M31:
    75.1 mm
  • Screen diagonal

    R7 Plus: 0.4 in smaller diagonal

    R7 Plus:
    6 in
    Galaxy M31:
    6.4 in
  • Chipset

    R7 Plus:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
    Galaxy M31:
    Exynos 9611 (10nm)
  • Rear camera layout

    R7 Plus:
    Single
    Galaxy M31:
    Triple
  • Depth

    R7 Plus: 1.1 mm thinner

    R7 Plus:
    7.8 mm
    Galaxy M31:
    8.9 mm
  • Release year

    R7 Plus:
    2015
    Galaxy M31:
    2020

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. R7 Plus

    Height:
    158 mm
    Width:
    82 mm +6.9 mm versus Galaxy M31
    Depth:
    7.8 mm
  2. 2. Galaxy M31

    Height:
    159.2 mm
    Width:
    75.1 mm
    Depth:
    8.9 mm +1.1 mm versus R7 Plus

Weight

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

  1. 1. R7 Plus

    192 g

    +1 g versus Galaxy M31

  2. 2. Galaxy M31

    191 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. R7 Plus

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    99.2 cm²
  2. 2. Galaxy M31

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

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 R7 Plus, Galaxy M31, compared at the same storage capacity.
StorageR7 PlusGalaxy M31
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
R7 Plus: Original memory entry

32 GB · 3 GB RAM64 GB · 512GB 4GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. R7 Plus

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

2. Galaxy M31

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. R7 Plus

    4100 mAh

  2. 2. Galaxy M31

    6000 mAh

    +1900 mAh versus R7 Plus

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. R7 Plus2. Galaxy M31

Everyday essentials
Everyday essentials — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Dimensions (HxWxD)
  • 158 Х 82 Х 7.8 mm
  • 159.2 Х 75.1 Х 8.9 mm
Weight
  • 192 g
  • 191 g
Technology
  • AMOLED
  • Super AMOLED
Screen size
  • 6" inch
  • 6.4" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM64 GB
  • 512GB 4GB
  • 64GB 6GB RAM
  • 128GB 6GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4100 mAh
  • Non-removable Li-Po
  • 6000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.1.1 (Lollipop); ColorOS 2.1
  • Android 10.0; One UI 2.0
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 99.2 cm2
  • 100.5 cm2
Screen format
  • 16:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 76.6%
  • 84.1%
PPI /points per inch/
  • 367 PPI
  • 403 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Rear camera, main
  • 13 MP
  • Single
  • 64 MP
  • Triple
Camera specs
  • 13 MP
  • f/2.2
  • 1/3''
  • 1.12µm
  • laser AF
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • (depth)
Functions
  • Schneider-Kreuznach optics
  • Dual-LED flash
  • panorama
  • HDR
  • HDR
Video
  • 1080p@60fps
  • 720p@120fps
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 32 MP
  • Single
Specifications
  • 8 MP
  • f/2.4
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
Performance

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

Performance — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Processor CPU
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 405
  • Mali-G72 MP3
Antutu 7 score *
  • 35215
Unknown
GeekBench 4 Single Core *
  • 840
Unknown
GeekBench 4 Multi-Core *
  • 4899
Unknown
Antutu 8 score * Unknown
  • 194554
General specs
General specs — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Release date
  • 2015
  • May
  • 2020
  • February 25
Colors
  • Golden
  • Silver
  • Ocean Blue
  • Space Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 430 EUR
  • 200 EUR
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
SIM card
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 - Global
  • Taiwan HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 40(2300) - Global LTE band 1(2100)
  • 28(700)
  • 40(2300) - Taiwan LTE band 1(2100)
  • 2(1900)
  • 4(1700/2100)
  • 17(700) - USA
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • LE
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
Music and Audio
Music and Audio — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Radio
  • No
  • FM radio
  • RDS
  • recording
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for R7 Plus, Galaxy M31.
SpecificationR7 PlusGalaxy M31
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging: 75% in 30 min (VOOC Flash Charge)
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS