Oppo R15x vs Samsung Z4

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

    Z4: 13 g lighter

    R15x:
    156 g
    Z4:
    143 g
  • Width

    Z4: 6.3 mm narrower

    R15x:
    75.5 mm
    Z4:
    69.2 mm
  • Screen diagonal

    Z4: 1.9 in smaller diagonal

    R15x:
    6.4 in
    Z4:
    4.5 in
  • Rear camera layout

    R15x:
    Dual
    Z4:
    Single
  • Depth

    R15x: 2.9 mm thinner

    R15x:
    7.4 mm
    Z4:
    10.3 mm
  • Height

    Z4: 25.4 mm shorter

    R15x:
    158.3 mm
    Z4:
    132.9 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. R15x

    Height:
    158.3 mm +25.4 mm versus Z4
    Width:
    75.5 mm +6.3 mm versus Z4
    Depth:
    7.4 mm
  2. 2. Z4

    Height:
    132.9 mm
    Width:
    69.2 mm
    Depth:
    10.3 mm +2.9 mm versus R15x

Weight

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

  1. 1. R15x

    156 g

    +13 g versus Z4

  2. 2. Z4

    143 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. R15x

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²
  2. 2. Z4

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    57.6 cm²

R15x has approximately 74.4% more rectangular screen area than Z4.

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 R15x, Z4, compared at the same storage capacity.
StorageR15xZ4
8 GB Not recorded 1 GB RAM
128 GB 6 GB RAM Not recorded

Practical features

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

1. R15x

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

2. Z4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. R15x

    3600 mAh

    +1550 mAh versus Z4

  2. 2. Z4

    2050 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. R15x2. Z4

Everyday essentials
Everyday essentials — specifications for R15x, Z4.
SpecificationR15xZ4
Dimensions (HxWxD)
  • 158.3 Х 75.5 Х 7.4 mm
  • 132.9 Х 69.2 Х 10.3 mm
Weight
  • 156 g
  • 143 g
Technology
  • Super AMOLED
Unknown
Screen size
  • 6.4" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2340 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • No
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 2050 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5.2
  • Tizen 3.0
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R15x, Z4.
SpecificationR15xZ4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 101.0 cm2
  • 57.6 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 84.5%
  • 62.7%
PPI /points per inch/
  • 402 PPI
  • 207 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for R15x, Z4.
SpecificationR15xZ4
Rear camera, main
  • 16 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
  • 5 MP
  • f/2.2
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 25 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for R15x, Z4.
SpecificationR15xZ4
Processor CPU
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Quad-core 1.5 GHz
Graphics processor GPU
  • Adreno 512
Unknown
Antutu 7 score *
  • 143726
  • 17329
General specs
General specs — specifications for R15x, Z4.
SpecificationR15xZ4
Release date
  • 2018
  • October
  • 2017
  • May
Colors
  • Nebula
  • Silver Green
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
  • 80 EUR
Communication and Connectivity
Communication and Connectivity — specifications for R15x, Z4.
SpecificationR15xZ4
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Micro-SIM)Hybrid Dual SIM (Micro-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 / 1700(AWS) / 2100 / 900 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 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 (dual-SIM model only) -3G - HSDPA 900 / 2100 -4G - LTE
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for R15x, Z4.
SpecificationR15xZ4
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for R15x, Z4.
SpecificationR15xZ4
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W - Incomplete preliminary specifications
  • Sensors Accelerometer
  • proximity