Oppo Realme X vs Samsung Galaxy J3 (2018)

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

    Realme X:
    OLED
    Galaxy J3 (2018):
    LCD
  • Weight

    Galaxy J3 (2018): 39 g lighter

    Realme X:
    191 g
    Galaxy J3 (2018):
    152 g
  • Width

    Galaxy J3 (2018): 5.9 mm narrower

    Realme X:
    76 mm
    Galaxy J3 (2018):
    70.1 mm
  • Screen diagonal

    Galaxy J3 (2018): 1.53 in smaller diagonal

    Realme X:
    6.53 in
    Galaxy J3 (2018):
    5 in
  • Chipset

    Realme X:
    Qualcomm SDM710 Snapdragon 710 (10 nm)
    Galaxy J3 (2018):
    Exynos 7570 Quad (14 nm)
  • Rear camera layout

    Realme X:
    Dual
    Galaxy J3 (2018):
    Single

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. Realme X

    Height:
    161.2 mm +18.5 mm versus Galaxy J3 (2018)
    Width:
    76 mm +5.9 mm versus Galaxy J3 (2018)
    Depth:
    9.4 mm +0.5 mm versus Galaxy J3 (2018)
  2. 2. Galaxy J3 (2018)

    Height:
    142.7 mm
    Width:
    70.1 mm
    Depth:
    8.9 mm

Weight

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

  1. 1. Realme X

    191 g

    +39 g versus Galaxy J3 (2018)

  2. 2. Galaxy J3 (2018)

    152 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. Realme X

    Screen diagonal:
    6.53 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    104.7 cm²
  2. 2. Galaxy J3 (2018)

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

Realme X has approximately 51.9% more rectangular screen area than Galaxy J3 (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 Realme X, Galaxy J3 (2018), compared at the same storage capacity.
StorageRealme XGalaxy J3 (2018)
16 GB Unknown 2 GB RAM
Realme X: Original memory entry

128/256 GB · 8 GB RAM 64 GB · 4/6 GB RAM

Practical features

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

1. Realme X

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

2. Galaxy J3 (2018)

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

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. Realme X

    3765 mAh

    +1165 mAh versus Galaxy J3 (2018)

  2. 2. Galaxy J3 (2018)

    2600 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. Realme X2. Galaxy J3 (2018)

Everyday essentials
Everyday essentials — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Dimensions (HxWxD)
  • 161.2 Х 76 Х 9.4 mm
  • 142.7 Х 70.1 Х 8.9 mm
Weight
  • 191 g
  • 152 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 6.53" inch
  • 5" inch
Screen resolution
  • 1080 x 2340 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128/256 GB
  • 8 GB RAM 64 GB
  • 4/6 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • No
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3765 mAh
  • Non-removable Li-Po
  • 2600 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); ColorOS 6
  • Android 8.0 (Oreo)
Chipset
  • Qualcomm SDM710 Snapdragon 710 (10 nm)
  • Exynos 7570 Quad (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 105.2 cm2
  • 68.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 85.9%
  • 68.9%
PPI /points per inch/
  • 394 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Rear camera, main
  • 48 MP
  • Dual
  • 8 MP
  • Single
Camera specs
  • 48 MP
  • f/1.7
  • (wide)
  • 26mm (wide)
  • 1/2''
  • 0.8µm
  • PDAF -5 MP
  • f/2.4
  • depth sensor
  • 8 MP
  • AF
  • f/1.9
Functions
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 5 MP
  • Single
Specifications
  • Motorized pop-up 16 MP
  • f/2.0
  • 25mm (wide)
  • 1/3''
  • 1.0µm
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Processor CPU
  • Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 616
  • Mali-T720
GeekBench 5 Single Core *
  • 334
Unknown
GeekBench 5 Multi-Core *
  • 1444
Unknown
General specs
General specs — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Release date
  • 2019
  • May
  • 2018
  • June
Colors
  • Steam white
  • Punk Blue
  • Black
  • Blue
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • 150 EUR
Body build
  • Front glass (Gorilla Glass 5)
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)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 - China -3G - HSDPA 850 / 900 / 1700(AWS) / 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)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 - AT&T -4G - LTE LTE band 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 12(700)
  • 14(700) - AT&T
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE-A (2CA) Cat6 300/75 Mbps
  • HSPA
  • LTE
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 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
Unknown
Other features
Other features — specifications for Realme X, Galaxy J3 (2018).
SpecificationRealme XGalaxy J3 (2018)
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 20W: 55% in 30 min (VOOC 3.0) - Versions: RMX1901
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also known as Samsung Galaxy J3 Star for T-Mobile; Galaxy Amp Prime 3 for Cricket