Samsung Galaxy A31 vs Xolo Era 4K

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 A31:
    OLED
    Era 4K:
    LCD
  • Width

    Era 4K: 1.3 mm narrower

    Galaxy A31:
    73.1 mm
    Era 4K:
    71.8 mm
  • Screen diagonal

    Era 4K: 1.4 in smaller diagonal

    Galaxy A31:
    6.4 in
    Era 4K:
    5 in
  • Rear camera layout

    Galaxy A31:
    Quad
    Era 4K:
    Single
  • Depth

    Galaxy A31: 0.6 mm thinner

    Galaxy A31:
    8.6 mm
    Era 4K:
    9.2 mm
  • Height

    Era 4K: 16.3 mm shorter

    Galaxy A31:
    159.3 mm
    Era 4K:
    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 A31

    Height:
    159.3 mm +16.3 mm versus Era 4K
    Width:
    73.1 mm +1.3 mm versus Era 4K
    Depth:
    8.6 mm
    Weight:
    185 g
  2. 2. Era 4K

    Height:
    143 mm
    Width:
    71.8 mm
    Depth:
    9.2 mm +0.6 mm versus Galaxy A31
    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 A31

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    98.9 cm²
  2. 2. Era 4K

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

Galaxy A31 has approximately 43.5% more rectangular screen area than Era 4K.

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 A31, Era 4K, compared at the same storage capacity.
StorageGalaxy A31Era 4K
8 GB Not recorded 2 GB RAM
64 GB 4 GB RAM Not recorded
128 GB 4 / 6 GB RAM Alternative RAM configurations 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 A31

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

2. Era 4K

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 A31

    5000 mAh

    +1000 mAh versus Era 4K

  2. 2. Era 4K

    4000 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 A312. Era 4K

Everyday essentials
Everyday essentials — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Dimensions (HxWxD)
  • 159.3 Х 73.1 Х 8.6 mm
  • 143 Х 71.8 Х 9.2 mm
Weight
  • 185 g
  • 0 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.4" inch
  • 5" inch
Screen resolution
  • 1080 x 2400 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 8 GB
  • 2 GB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 5000 mAh
  • Non-removable Li-Po
  • 4000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Android 5.1.1 (Lollipop)
Chipset Unknown
  • Mediatek MT6735P (28 nm)
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.9 cm2
  • 68.9 cm2
Screen format
  • 20:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.9%
  • 67.1%
PPI /points per inch/
  • 411 PPI
  • 294 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Rear camera, main
  • 48 MP
  • Quad
  • 8 MP
  • Single
Camera specs
  • 48 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • (macro) -5 MP
  • (depth)
  • 8 MP
  • AF
  • f/2.0
Functions
  • LED flash
  • panorama
  • HDR
  • Dual-LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 20 MP
  • f/2.2
  • (wide)
  • 5 MP
  • f/2.2
Performance
Performance — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Processor CPU
  • Octa-core (2x2.0 GHz & 6x1.7 GHz)
  • Quad-core 1.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T720MP2
General specs
General specs — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Release date
  • 2020
  • March 24
  • 2016
  • February
Colors
  • Prism Crush Black
  • Prism Crush Blue
  • Prism Crush Red
  • Prism Crush White
  • Blue
  • White
Battery life Unknown
  • Stand by time- Up to 624 h (2G) / Up to 528 h (3G) Talking time- Up to 32 h (2G) / Up to 17 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 40(2300)
Speed
  • HSPA
  • LTE-A
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 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
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.49 W/kg (head) 1.68 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Radio Unknown
  • FM radio
Other features
Other features — specifications for Galaxy A31, Era 4K.
SpecificationGalaxy A31Era 4K
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 15W
  • Sensors Accelerometer
  • proximity - For India