Coolpad Cool 12A vs BLU Studio J2

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

    Studio J2: 59.5 g lighter

    Cool 12A:
    202.5 g
    Studio J2:
    143 g
  • Width

    Studio J2: 2.3 mm narrower

    Cool 12A:
    75.2 mm
    Studio J2:
    72.9 mm
  • Screen diagonal

    Studio J2: 1.3 in smaller diagonal

    Cool 12A:
    6.3 in
    Studio J2:
    5 in
  • Rear camera layout

    Cool 12A:
    Dual
    Studio J2:
    Single
  • Depth

    Cool 12A: 1.5 mm thinner

    Cool 12A:
    8.9 mm
    Studio J2:
    10.4 mm
  • Height

    Studio J2: 11.3 mm shorter

    Cool 12A:
    156.2 mm
    Studio J2:
    144.9 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. Cool 12A

    Height:
    156.2 mm +11.3 mm versus Studio J2
    Width:
    75.2 mm +2.3 mm versus Studio J2
    Depth:
    8.9 mm
  2. 2. Studio J2

    Height:
    144.9 mm
    Width:
    72.9 mm
    Depth:
    10.4 mm +1.5 mm versus Cool 12A

Weight

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

  1. 1. Cool 12A

    202.5 g

    +59.5 g versus Studio J2

  2. 2. Studio J2

    143 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. Cool 12A

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²
  2. 2. Studio J2

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

Cool 12A has approximately 41.4% more rectangular screen area than Studio J2.

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 Cool 12A, Studio J2, compared at the same storage capacity.
StorageCool 12AStudio J2
64 GB 4 GB RAM Unknown
Studio J2: Original memory entry

8 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. Cool 12A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD

2. Studio J2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. Cool 12A

    4000 mAh

    +2000 mAh versus Studio J2

  2. 2. Studio J2

    2000 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. Cool 12A2. Studio J2

Everyday essentials
Everyday essentials — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Dimensions (HxWxD)
  • 156.2 Х 75.2 Х 8.9 mm
  • 144.9 Х 72.9 Х 10.4 mm
Weight
  • 202.5 g
  • 143 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.3" inc
  • 5" inch
Screen resolution
  • 720 x 1560 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Li-Po
  • non-removable
  • 2000 mAh
  • Removable Li-Po
Operating system OS
  • Android
  • Android 6.0 (Marshmallow)
Chipset
  • - Unisoc Tiger T310
  • Mediatek MT6570 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.4 cm2
  • 68.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.9%
  • 65.2%
PPI /points per inch/ Unknown
  • 196 PPI
Camera and Video
Camera and Video — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Rear camera, main
  • 16 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • -16 MP
  • PDAF -2 MP
  • 5 MP
Functions
  • LED flash
  • panorama
  • HDR
  • LED
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 8 MP
  • 2 MP
Performance

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

Performance — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Processor CPU
  • - Quad-core (1x2.0 GHz Cortex-A75 & 3x1.8 GHz Cortex-A55)
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400
Antutu 7 score * Unknown
  • 11535
GeekBench 4 Single Core * Unknown
  • 390
GeekBench 4 Multi-Core * Unknown
  • 604
General specs
General specs — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Release date
  • 2020
  • October 05
  • 2017
  • May
Colors
  • Dream Black
  • Dream Blue
  • Fantasy Silver
  • Black
  • Gold
  • Rose Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 650 h (2G) / Up to 550 h (3G) Talking time- Up to 24 h (2G) / Up to 12 h (3G)
Body build
  • Glass front
  • plastic frame
  • glass back
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
SIM card
  • Nano-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • USB Type-C 2.0
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Radio
  • FM radio
  • No
Other features
Other features — specifications for Cool 12A, Studio J2.
SpecificationCool 12AStudio J2
Dop
  • - Sensors - Fingerprint (side-mounted)
  • accelerometer
  • proximity
  • Sensors Accelerometer