BLU Studio 5.5 C vs Oppo A31

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.

  • Width

    A31: 3.5 mm narrower

    Studio 5.5 C:
    79 mm
    A31:
    75.5 mm
  • Screen diagonal

    Studio 5.5 C: 1 in smaller diagonal

    Studio 5.5 C:
    5.5 in
    A31:
    6.5 in
  • Rear camera layout

    Studio 5.5 C:
    Single
    A31:
    Triple
  • Depth

    A31: 1.6 mm thinner

    Studio 5.5 C:
    9.9 mm
    A31:
    8.3 mm
  • Height

    Studio 5.5 C: 8.9 mm shorter

    Studio 5.5 C:
    155 mm
    A31:
    163.9 mm
  • Release year

    Studio 5.5 C:
    2015
    A31:
    2020

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. Studio 5.5 C

    Height:
    155 mm
    Width:
    79 mm +3.5 mm versus A31
    Depth:
    9.9 mm +1.6 mm versus A31
  2. 2. A31

    Height:
    163.9 mm +8.9 mm versus Studio 5.5 C
    Width:
    75.5 mm
    Depth:
    8.3 mm

Weight

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

  1. 1. Studio 5.5 C

    178 g

  2. 2. A31

    180 g

    +2 g versus Studio 5.5 C

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. Studio 5.5 C

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. A31

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

A31 has approximately 22.3% more rectangular screen area than Studio 5.5 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 Studio 5.5 C, A31, compared at the same storage capacity.
StorageStudio 5.5 CA31
128 GB Unknown 4 GB RAM
Studio 5.5 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. Studio 5.5 C

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

2. A31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. Studio 5.5 C

    2820 mAh

  2. 2. A31

    4230 mAh

    +1410 mAh versus Studio 5.5 C

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. Studio 5.5 C2. A31

Everyday essentials
Everyday essentials — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Dimensions (HxWxD)
  • 155 Х 79 Х 9.9 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 178 g
  • 180 g
Technology
  • LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 6.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2820 mAh
  • Removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4 (KitKat)
  • upgradable to 5.0 (Lollipop)
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Mediatek MT6582 (28 nm)
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 102.0 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 68.1%
  • 82.4%
PPI /points per inch/
  • 178 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Rear camera, main
  • 5 MP
  • Single
  • 12 MP
  • Triple
Camera specs
  • 5 MP
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400MP2
  • PowerVR GE8320
Antutu 8 score * Unknown
  • 105221
General specs
General specs — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Release date
  • 2015
  • May
  • 2020
  • February 13
Colors
  • Black
  • Blue
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 180 EUR
Battery life
  • Stand by time- Up to 890 h (2G) / Up to 740 h (3G) Talking time- Up to 29 h (2G) / Up to 17 h (3G)
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
SIM card
  • Dual SIM (Mini-SIM/ Micro-SIM)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Radio
  • FM radio
  • FM radio
Others Unknown
  • 480 nits typ. brightness
Other features
Other features — specifications for Studio 5.5 C, A31.
SpecificationStudio 5.5 CA31
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass