alcatel Idol 5s vs BLU 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.

  • Width

    Idol 5s: 1.1 mm narrower

    Idol 5s:
    72 mm
    J2:
    73.1 mm
  • Screen diagonal

    J2: 0.2 in smaller diagonal

    Idol 5s:
    5.2 in
    J2:
    5 in
  • Memory variants

    At 32 GB storage

    Idol 5s:
    3 GB RAM
    J2:
    1 GB RAM
  • Depth

    Idol 5s: 2.8 mm thinner

    Idol 5s:
    7.5 mm
    J2:
    10.3 mm
  • Height

    J2: 4.6 mm shorter

    Idol 5s:
    148.6 mm
    J2:
    144 mm
  • Release year

    Idol 5s:
    2017
    J2:
    2019

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. Idol 5s

    Height:
    148.6 mm +4.6 mm versus J2
    Width:
    72 mm
    Depth:
    7.5 mm
  2. 2. J2

    Height:
    144 mm
    Width:
    73.1 mm +1.1 mm versus Idol 5s
    Depth:
    10.3 mm +2.8 mm versus Idol 5s

Weight

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

  1. 1. Idol 5s

    147 g

    +1 g versus J2

  2. 2. J2

    146 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. Idol 5s

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. J2

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

Idol 5s has approximately 8.2% more rectangular screen area than 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 Idol 5s, J2, compared at the same storage capacity.
StorageIdol 5sJ2
32 GB Recorded for all phones 3 GB RAM 1 GB 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. Idol 5s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

2. J2

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

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. Idol 5s

    2850 mAh

    +850 mAh versus J2

  2. 2. 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. Idol 5s2. J2

Everyday essentials
Everyday essentials — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Dimensions (HxWxD)
  • 148.6 Х 72 Х 7.5 mm
  • 144 Х 73.1 Х 10.3 mm
Weight
  • 147 g
  • 146 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.2" inch
  • 5" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 32GB 1GB RAM
Memory card support
  • microSD
  • up to 256 GB
  • microSDXC
Battery Capacity is not battery life. No endurance test is implied.
  • 2850 mAh
  • Non-removable Li-Ion
  • 2000 mAh
  • Li-Po
Operating system OS
  • Android 7.1 (Nougat)
  • Android 8.1 Oreo (Go edition)
Chipset
  • Mediatek MT6757 Helio P20 (16 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 74.5 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 69.7%
  • 65.4%
PPI /points per inch/
  • 424 PPI
  • 196 PPI
Screen protection
  • oleophobic coating
Unknown
Camera and Video
Camera and Video — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Rear camera, main
  • 12 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/2.0
  • 1/2.8''
  • 1.25µm
  • PDAF
  • 5 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 1/3.2''
  • 1.4µm
  • 5 MP
Performance

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

Performance — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Processor CPU
  • Octa-core (4x2.35 GHz Cortex-A53 & 4x1.65 GHz Cortex-A53)
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Mali-T880MP2
  • Mali-400
Antutu 7 score *
  • 80302
Unknown
GeekBench 4 Single Core *
  • 824
Unknown
GeekBench 4 Multi-Core *
  • 3421
Unknown
General specs
General specs — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Release date
  • 2017
  • September
  • 2019
  • December
Colors
  • Dark Gray
  • Blue
  • Black
  • Brown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 140 EUR
  • 50 EUR
Battery life
  • Stand by time- Up to 500 h (2G) / Up to 500 h (3G) Talking time- Up to 18 h (2G) / Up to 18 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
SIM card
  • Nano-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • 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
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Radio
  • FM radio with RDS
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Idol 5s, J2.
SpecificationIdol 5sJ2
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Pump Express 2.0)
  • Sensors Accelerometer For USA