Oppo R15 vs Samsung Galaxy J7 Max

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

    R15: 3.6 mm narrower

    R15:
    75.2 mm
    Galaxy J7 Max:
    78.8 mm
  • Screen diagonal

    Galaxy J7 Max: 0.58 in smaller diagonal

    R15:
    6.28 in
    Galaxy J7 Max:
    5.7 in
  • Chipset

    R15:
    Mediatek MT6771 Helio P60 (12 nm)
    Galaxy J7 Max:
    Mediatek MT6757 Helio P20 (16 nm)
  • Rear camera layout

    R15:
    Dual
    Galaxy J7 Max:
    Single
  • Depth

    R15: 0.7 mm thinner

    R15:
    7.4 mm
    Galaxy J7 Max:
    8.1 mm
  • Release year

    R15:
    2018
    Galaxy J7 Max:
    2017

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
    Width:
    75.2 mm
    Depth:
    7.4 mm
  2. 2. Galaxy J7 Max

    Height:
    156.7 mm
    Width:
    78.8 mm +3.6 mm versus R15
    Depth:
    8.1 mm +0.7 mm versus R15

Weight

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

  1. 1. R15

    175 g

  2. 2. Galaxy J7 Max

    179 g

    +4 g versus R15

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. Galaxy J7 Max

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

R15 has approximately 9.9% more rectangular screen area than Galaxy J7 Max.

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.

R15: Original memory entry

128 GB · 4/6 GB RAM

Galaxy J7 Max: Original memory entry

32 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. R15

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

2. Galaxy J7 Max

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. R15

    3450 mAh

    +150 mAh versus Galaxy J7 Max

  2. 2. Galaxy J7 Max

    3300 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. Galaxy J7 Max

Everyday essentials
Everyday essentials — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Dimensions (HxWxD)
  • 155.1 Х 75.2 Х 7.4 mm
  • 156.7 Х 78.8 Х 8.1 mm
Weight
  • 175 g
  • 179 g
Technology
  • AMOLED
  • PLS
Screen size
  • 6.28" inch
  • 5.7" inch
Screen resolution
  • 1080 x 2280 px
  • 1080 x 1920 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
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3450 mAh
  • Non-removable Li-Po
  • 3300 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5
  • Android 7.0 (Nougat)
  • upgradable to Android 8.0 (Oreo)
Chipset
  • Mediatek MT6771 Helio P60 (12 nm)
  • Mediatek MT6757 Helio P20 (16 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.9 cm2
  • 89.6 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.8%
  • 72.5%
PPI /points per inch/
  • 401 PPI
  • 386 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Rear camera, main
  • 16 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.6''
  • 1.22µm
  • PDAF -5 MP
  • f/2.2
  • depth sensor
  • 13 MP
  • AF
  • f/1.7
Functions
  • LED flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 13 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 13 MP
  • f/1.9
Performance

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

Performance — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Processor CPU
  • Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
  • Octa-core (4x2.35 GHz Cortex-A53 & 4x1.65 GHz Cortex-A53)
Graphics processor GPU
  • Mali-G72 MP3
  • Mali-T880MP2
Antutu 7 score *
  • 140520
  • 44789
GeekBench 4 Single Core *
  • 1928
  • 615
GeekBench 4 Multi-Core *
  • 4904
  • 2591
GeekBench 4 RenderScript * Unknown
  • 1926
General specs
General specs — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Release date
  • 2018
  • March
  • 2017
  • June
Colors
  • Hot Red
  • Snow White
  • Star Purple
  • Fantasy Pink
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 460 EUR
  • 170 EUR
Battery life Unknown
  • Talking time- Up to 20 h (3G) Music play - Up to 72 h
Body build
  • Front glass
  • aluminum body
  • aluminum body
  • plastic ends
Communication and Connectivity
Communication and Connectivity — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
SIM card
  • Hybrid Dual SIM (Nano-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 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 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 20(800)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat13 600/100 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
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
  • dual-band
  • WiFi 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 On-The-Go
Bluetooth
  • 4.2
  • A2DP
  • LE
  • EDR
  • 4.2
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.57 W/kg (head) 1.06 W/kg (body) SAR EU - 0.46 W/kg (head) 1.52 W/kg (body)
Music and Audio
Music and Audio — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for R15, Galaxy J7 Max.
SpecificationR15Galaxy J7 Max
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: VOOC Flash Charge 5V/4A
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Versions: G615F/DS (India) Also known as Samsung Galaxy On Max without smart glow ring