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Acer Allegro vs BLU J2

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Allegro: 20 g lighter

    Allegro:
    126 g
    J2:
    146 g
  • Width

    Allegro: 14.1 mm narrower

    Allegro:
    59 mm
    J2:
    73.1 mm
  • Screen diagonal

    Allegro: 1.4 in smaller diagonal

    Allegro:
    3.6 in
    J2:
    5 in
  • Depth

    J2: 2.7 mm thinner

    Allegro:
    13 mm
    J2:
    10.3 mm
  • Height

    Allegro: 28 mm shorter

    Allegro:
    116 mm
    J2:
    144 mm
  • Release year

    Allegro:
    2011
    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. Allegro

    Height:
    116 mm
    Width:
    59 mm
    Depth:
    13 mm +2.7 mm versus J2
  2. 2. J2

    Height:
    144 mm +28 mm versus Allegro
    Width:
    73.1 mm +14.1 mm versus Allegro
    Depth:
    10.3 mm

Weight

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

  1. 1. Allegro

    126 g

  2. 2. J2

    146 g

    +20 g versus Allegro

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. Allegro

    Screen diagonal:
    3.6 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    36.9 cm²
  2. 2. J2

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

J2 has approximately 86.8% more rectangular screen area than Allegro.

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 Allegro, J2, compared at the same storage capacity.
StorageAllegroJ2
32 GB Unknown 1 GB RAM
Allegro: Original memory entry

8 GB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Allegro

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details panorama

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. Allegro

    1300 mAh

  2. 2. J2

    2000 mAh

    +700 mAh versus Allegro

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. Allegro2. J2

Everyday essentials
Everyday essentials — specifications for Allegro, J2.
SpecificationAllegroJ2
Dimensions (HxWxD)
  • 116 Х 59 Х 13 mm
  • 144 Х 73.1 Х 10.3 mm
Weight
  • 126 g
  • 146 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.6" inch
  • 5" inch
Screen resolution
  • 480 x 800 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 32GB 1GB RAM
Memory card support
  • panorama
  • microSDXC
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Li-Po
Operating system OS
  • Microsoft Windows Phone 7.5 Mango
  • Android 8.1 Oreo (Go edition)
Chipset
  • Qualcomm MSM8255 Snapdragon S2
Unknown
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Allegro, J2.
SpecificationAllegroJ2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 36.9 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 53.9%
  • 65.4%
PPI /points per inch/
  • 259 PPI
  • 196 PPI
Camera and Video
Camera and Video — specifications for Allegro, J2.
SpecificationAllegroJ2
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications
  • Super AMOLED
  • 5 MP
Performance

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

Performance — specifications for Allegro, J2.
SpecificationAllegroJ2
Processor CPU
  • 1.0 GHz Scorpion
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Adreno 205
  • Mali-400
Antutu 7 score *
  • 586
Unknown
General specs
General specs — specifications for Allegro, J2.
SpecificationAllegroJ2
Release date
  • 2011
  • October
  • 2019
  • December
Colors
  • Black
  • White
  • Blue
  • Black
  • Brown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 140 EUR
  • 50 EUR
Battery life
  • Talking time- Up to 6 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Allegro, J2.
SpecificationAllegroJ2
SIM card
  • Single SIM (Mini-SIM)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 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • Wi-Fi 802.11 a/b/g/n/ac
  • A2DP
  • EDR
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Allegro, J2.
SpecificationAllegroJ2
Radio
  • panorama
  • FM radio
Other features
Other features — specifications for Allegro, J2.
SpecificationAllegroJ2
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/eAAC+ player -MP4/WMV/H.264 player -Document viewer -Voice memo -Predictive text input - Also known as Acer W4
  • Acer M310
  • Sensors Accelerometer For USA