Nokia X6 (2018) vs Oppo A91

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

    X6 (2018):
    LCD
    A91:
    OLED
  • Weight

    X6 (2018): 21 g lighter

    X6 (2018):
    151 g
    A91:
    172 g
  • Width

    X6 (2018): 2.3 mm narrower

    X6 (2018):
    71 mm
    A91:
    73.3 mm
  • Screen diagonal

    X6 (2018): 0.6 in smaller diagonal

    X6 (2018):
    5.8 in
    A91:
    6.4 in
  • Chipset

    X6 (2018):
    Qualcomm SDM636 Snapdragon 636 (14 nm)
    A91:
    Mediatek MT6771V Helio P70 (12nm)
  • Rear camera layout

    X6 (2018):
    Dual
    A91:
    Quad

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. X6 (2018)

    Height:
    147.2 mm
    Width:
    71 mm
    Depth:
    8 mm
  2. 2. A91

    Height:
    160.2 mm +13 mm versus X6 (2018)
    Width:
    73.3 mm +2.3 mm versus X6 (2018)
    Depth:
    7.9 mm

Weight

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

  1. 1. X6 (2018)

    151 g

  2. 2. A91

    172 g

    +21 g versus X6 (2018)

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. X6 (2018)

    Screen diagonal:
    5.8 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    84 cm²
  2. 2. A91

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    98.9 cm²

A91 has approximately 17.8% more rectangular screen area than X6 (2018).

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 X6 (2018), A91, compared at the same storage capacity.
StorageX6 (2018)A91
128 GB Unknown 8 GB RAM
X6 (2018): Original memory entry

64 GB · 4 GB RAM (6.1 Plus)64 GB · 4/6 GB RAM 32 GB · 4 GB RAM (X6)

Practical features

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

1. X6 (2018)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 400 GB (uses SIM 2 slot)

2. A91

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. X6 (2018)

    3060 mAh

  2. 2. A91

    4025 mAh

    +965 mAh versus X6 (2018)

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. X6 (2018)2. A91

Everyday essentials
Everyday essentials — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Dimensions (HxWxD)
  • 147.2 Х 71 Х 8 mm
  • 160.2 Х 73.3 Х 7.9 mm
Weight
  • 151 g
  • 172 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5.8" inch
  • 6.4" inch
Screen resolution
  • 1080 x 2280 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM (6.1 Plus)64 GB
  • 4/6 GB RAM 32 GB
  • 4 GB RAM (X6)
  • 128GB 8GB RAM
Memory card support
  • microSD
  • up to 400 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3060 mAh
  • Non-removable Li-Ion
  • 4025 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 (Oreo)
  • upgradable to Android 9.0 (Pie); Android One
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Qualcomm SDM636 Snapdragon 636 (14 nm)
  • Mediatek MT6771V Helio P70 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 85.1 cm2
  • 100.4 cm2
Screen format
  • 19:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 81.5%
  • 85.5%
PPI /points per inch/
  • 432 PPI
  • 408 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Rear camera, main
  • 16 MP
  • Dual
  • 48 MP
  • Quad
Camera specs
  • 16 MP
  • f/2.0
  • 1.0µm
  • PDAF -5 MP
  • f/2.4
  • 1.12µm
  • depth sensor
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -2 MP B/W
  • f/2.4
  • 1/5.0"
  • 1.75µm -2 MP
  • 1.75µm
  • depth sensor
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 1/3.1''
  • 1.0µm
  • 16 MP
  • f/2.0
  • 26mm (wide)
  • 1/3.1''
  • 1.0µm
Performance

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

Performance — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Processor CPU
  • Octa-core 1.8 GHz Kryo 260
  • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 509
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 135756
General specs
General specs — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Release date
  • 2018
  • July
  • 2019
  • December
Colors
  • Black
  • Blue
  • White
  • Dark Blue
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 260 EUR
Body build
  • Front/back glass (Gorilla Glass 3)
  • aluminum frame
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
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 / 1900 / 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/11.5 Mbps
  • 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/ax
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.94 W/kg (head) 1.82 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • 430 nits typ. brightness
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for X6 (2018), A91.
SpecificationX6 (2018)A91
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 3.0) - Versions: Nokia 6.1 Plus (Global); Nokia X6 (China)
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 20W
  • 50% in 30 min -VOOC 3.0