Samsung Galaxy M31 vs Xolo Opus HD

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

    Galaxy M31:
    OLED
    Opus HD:
    LCD
  • Width

    Opus HD: 4.1 mm narrower

    Galaxy M31:
    75.1 mm
    Opus HD:
    71 mm
  • Screen diagonal

    Opus HD: 1.41 in smaller diagonal

    Galaxy M31:
    6.4 in
    Opus HD:
    4.99 in
  • Rear camera layout

    Galaxy M31:
    Triple
    Opus HD:
    Single
  • Depth

    Opus HD: 1 mm thinner

    Galaxy M31:
    8.9 mm
    Opus HD:
    7.9 mm
  • Height

    Opus HD: 16.2 mm shorter

    Galaxy M31:
    159.2 mm
    Opus HD:
    143 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. Galaxy M31

    Height:
    159.2 mm +16.2 mm versus Opus HD
    Width:
    75.1 mm +4.1 mm versus Opus HD
    Depth:
    8.9 mm +1 mm versus Opus HD
    Weight:
    191 g
  2. 2. Opus HD

    Height:
    143 mm
    Width:
    71 mm
    Depth:
    7.9 mm
    Weight:
    Unknown

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. Galaxy M31

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

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

Galaxy M31 has approximately 46.5% more rectangular screen area than Opus HD.

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 Galaxy M31, Opus HD, compared at the same storage capacity.
StorageGalaxy M31Opus HD
8 GB Not recorded 1 GB RAM
64 GB 6 GB RAM Not recorded
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. Galaxy M31

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. Opus HD

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. Galaxy M31

    6000 mAh

    +3500 mAh versus Opus HD

  2. 2. Opus HD

    2500 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. Galaxy M312. Opus HD

Everyday essentials
Everyday essentials — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Dimensions (HxWxD)
  • 159.2 Х 75.1 Х 8.9 mm
  • 143 Х 71 Х 7.9 mm
Weight
  • 191 g
  • 0 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.4" inch
  • 4.99" 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.
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 6000 mAh
  • Non-removable Li-Po
  • 2500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Android 4.4.2 (KitKat)
Chipset
  • Exynos 9611 (10nm)
  • Broadcom BCM23550
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 100.5 cm2
  • 68.6 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.1%
  • 67.6%
PPI /points per inch/
  • 403 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Rear camera, main
  • 64 MP
  • Triple
  • 8 MP
  • Single
Camera specs
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • (depth)
  • 8 MP
  • AF
Functions
  • HDR
  • LED flash
  • panorama
Video
  • 2160p@30fps
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 32 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
  • 2 MP
Performance

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

Performance — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
  • Quad-core 1.2 GHz
Graphics processor GPU
  • Mali-G72 MP3
  • Broadcom VideoCore IV
Antutu 7 score * Unknown
  • 5687
Antutu 8 score *
  • 194554
Unknown
General specs
General specs — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Release date
  • 2020
  • February 25
  • 2014
Colors
  • Ocean Blue
  • Space Black
  • Red
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 120 EUR
Battery life Unknown
  • Stand by time- Up to 600 h (2G) / Up to 500 h (3G) Talking time- Up to 28 h (2G) / Up to 9 h (3G)
Body build
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • LTE-A
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
  • SAR - 0.52 W/kg (head) 0.60 W/kg (body)
Music and Audio
Music and Audio — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Radio
  • FM radio
  • RDS
  • recording
  • FM radio
Other features
Other features — specifications for Galaxy M31, Opus HD.
SpecificationGalaxy M31Opus HD
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS
  • Sensors Accelerometer
  • proximity - For India