Samsung Galaxy M31 vs ZTE Open C

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

    Open C: 66 g lighter

    Galaxy M31:
    191 g
    Open C:
    125 g
  • Width

    Open C: 10.4 mm narrower

    Galaxy M31:
    75.1 mm
    Open C:
    64.7 mm
  • Screen diagonal

    Open C: 2.4 in smaller diagonal

    Galaxy M31:
    6.4 in
    Open C:
    4 in
  • Chipset

    Galaxy M31:
    Exynos 9611 (10nm)
    Open C:
    Qualcomm MSM8210 Snapdragon 200 (28 nm)
  • Rear camera layout

    Galaxy M31:
    Triple
    Open C:
    Single
  • Depth

    Galaxy M31: 1.9 mm thinner

    Galaxy M31:
    8.9 mm
    Open C:
    10.8 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. Galaxy M31

    Height:
    159.2 mm +33.2 mm versus Open C
    Width:
    75.1 mm +10.4 mm versus Open C
    Depth:
    8.9 mm
  2. 2. Open C

    Height:
    126 mm
    Width:
    64.7 mm
    Depth:
    10.8 mm +1.9 mm versus Galaxy M31

Weight

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

  1. 1. Galaxy M31

    191 g

    +66 g versus Open C

  2. 2. Open C

    125 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. Galaxy M31

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

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

Galaxy M31 has approximately 120.8% more rectangular screen area than Open C.

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, Open C, compared at the same storage capacity.
StorageGalaxy M31Open C
64 GB 6 GB RAM Unknown
128 GB 6 GB RAM Unknown
Open C: Original memory entry

4 GB · 512 MB 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. Galaxy M31

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

2. Open C

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

    6000 mAh

    +4600 mAh versus Open C

  2. 2. Open C

    1400 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. Open C

Everyday essentials
Everyday essentials — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Dimensions (HxWxD)
  • 159.2 Х 75.1 Х 8.9 mm
  • 126 Х 64.7 Х 10.8 mm
Weight
  • 191 g
  • 125 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.4" inch
  • 4" 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.
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 6000 mAh
  • Non-removable Li-Po
  • 1400 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Firefox OS 1.3
Chipset
  • Exynos 9611 (10nm)
  • Qualcomm MSM8210 Snapdragon 200 (28 nm)
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 100.5 cm2
  • 45.5 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 84.1%
  • 55.9%
PPI /points per inch/
  • 403 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Rear camera, main
  • 64 MP
  • Triple
  • 3.15 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)
  • 3.15 MP
Functions
  • HDR
Unknown
Video
  • 2160p@30fps
  • 1080p@30fps
  • 352x288@15fps
Front camera, selfie
  • 32 MP
  • Single
  • 0 MP,
Specifications
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
Unknown
Performance

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

Performance — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Mali-G72 MP3
  • Adreno 302
Antutu 7 score * Unknown
  • 12154
Antutu 8 score *
  • 194554
Unknown
General specs
General specs — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Release date
  • 2020
  • February 25
  • 2014
  • February
Colors
  • Ocean Blue
  • Space Black
  • Red
  • Orange
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 70 EUR
Battery life Unknown
  • Stand by time- Up to 150 h Talking time- Up to 6 h
Body build
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-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
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
  • 2.1
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)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Radio
  • FM radio
  • RDS
  • recording
  • FM radio
Other features
Other features — specifications for Galaxy M31, Open C.
SpecificationGalaxy M31Open C
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS
  • Sensors Accelerometer MP3/AAC+/WAV player -MP4/H.264 player -Photo viewer -Predictive text input