Oppo R15x vs vivo Z1i

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

    R15x:
    OLED
    Z1i:
    LCD
  • Weight

    Z1i: 6.7 g lighter

    R15x:
    156 g
    Z1i:
    149.3 g
  • Chipset

    R15x:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Z1i:
    Qualcomm SDM636 Snapdragon 636 (14 nm)
  • Depth

    R15x: 0.5 mm thinner

    R15x:
    7.4 mm
    Z1i:
    7.9 mm
  • Height

    Z1i: 3.5 mm shorter

    R15x:
    158.3 mm
    Z1i:
    154.8 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 +3.5 mm versus Z1i
    Width:
    75.5 mm
    Depth:
    7.4 mm
  2. 2. Z1i

    Height:
    154.8 mm
    Width:
    75.1 mm
    Depth:
    7.9 mm +0.5 mm versus R15x

Weight

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

  1. 1. R15x

    156 g

    +6.7 g versus Z1i

  2. 2. Z1i

    149.3 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. Z1i

    Screen diagonal:
    6.26 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    97.8 cm²

R15x has approximately 2.8% more rectangular screen area than Z1i.

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, Z1i, compared at the same storage capacity.
StorageR15xZ1i
128 GB 6 GB RAM Unknown
Z1i: Original memory entry

128 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. R15x

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

2. Z1i

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. R15x

    3600 mAh

    +340 mAh versus Z1i

  2. 2. Z1i

    3260 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. Z1i

Everyday essentials
Everyday essentials — specifications for R15x, Z1i.
SpecificationR15xZ1i
Dimensions (HxWxD)
  • 158.3 Х 75.5 Х 7.4 mm
  • 154.8 Х 75.1 Х 7.9 mm
Weight
  • 156 g
  • 149.3 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.4" inch
  • 6.26" inch
Screen resolution
  • 1080 x 2340 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM
  • 128 GB
  • 512GB 4GB
Memory card support
  • No
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 3260 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5.2
  • Android 8.1 (Oreo); Funtouch 4
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Qualcomm SDM636 Snapdragon 636 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R15x, Z1i.
SpecificationR15xZ1i
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 101.0 cm2
  • 97.8 cm2
Screen format
  • 19.5:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 84.5%
  • 84.1%
PPI /points per inch/
  • 402 PPI
  • 403 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for R15x, Z1i.
SpecificationR15xZ1i
Rear camera, main
  • 16 MP
  • Dual
  • 13 MP
  • Dual
Camera specs
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
  • 13 MP
  • PDAF -2 MP
  • depth sensor
Functions
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 2160p@30fps
  • 1080p@30fps
Front camera, selfie
  • 25 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
  • 16 MP
Performance

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

Performance — specifications for R15x, Z1i.
SpecificationR15xZ1i
Processor CPU
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Octa-core 1.8 GHz Kryo 260
Graphics processor GPU
  • Adreno 512
  • Adreno 509
Antutu 7 score *
  • 143726
  • 104252
GeekBench 4 Single Core * Unknown
  • 1336
GeekBench 4 Multi-Core * Unknown
  • 4943
General specs
General specs — specifications for R15x, Z1i.
SpecificationR15xZ1i
Release date
  • 2018
  • October
  • 2018
  • July
Colors
  • Nebula
  • Silver Green
  • Black
  • Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
  • 250 EUR
Body build Unknown
  • plastic back
Communication and Connectivity
Communication and Connectivity — specifications for R15x, Z1i.
SpecificationR15xZ1i
SIM card
  • Dual SIM (Nano-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 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 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Yes
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • Yes
Music and Audio
Music and Audio — specifications for R15x, Z1i.
SpecificationR15xZ1i
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for R15x, Z1i.
SpecificationR15xZ1i
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W - Incomplete preliminary specifications
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass