BLU R2 Plus vs Celkon A9 Dual

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

    A9 Dual: 51 g lighter

    R2 Plus:
    167 g
    A9 Dual:
    116 g
  • Width

    A9 Dual: 13.1 mm narrower

    R2 Plus:
    77 mm
    A9 Dual:
    63.9 mm
  • Screen diagonal

    A9 Dual: 2 in smaller diagonal

    R2 Plus:
    5.5 in
    A9 Dual:
    3.5 in
  • Depth

    R2 Plus: 1.4 mm thinner

    R2 Plus:
    9.2 mm
    A9 Dual:
    10.6 mm
  • Height

    A9 Dual: 35.2 mm shorter

    R2 Plus:
    155.7 mm
    A9 Dual:
    120.5 mm
  • Release year

    R2 Plus:
    2017
    A9 Dual:
    2014

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. R2 Plus

    Height:
    155.7 mm +35.2 mm versus A9 Dual
    Width:
    77 mm +13.1 mm versus A9 Dual
    Depth:
    9.2 mm
  2. 2. A9 Dual

    Height:
    120.5 mm
    Width:
    63.9 mm
    Depth:
    10.6 mm +1.4 mm versus R2 Plus

Weight

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

  1. 1. R2 Plus

    167 g

    +51 g versus A9 Dual

  2. 2. A9 Dual

    116 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. R2 Plus

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. A9 Dual

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

R2 Plus has approximately 128.6% more rectangular screen area than A9 Dual.

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 R2 Plus, A9 Dual, compared at the same storage capacity.
StorageR2 PlusA9 Dual
32 GB 3 GB RAM Unknown
A9 Dual: Original memory entry

512 MB · 256 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. R2 Plus

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

2. A9 Dual

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. R2 Plus

    3000 mAh

    +1650 mAh versus A9 Dual

  2. 2. A9 Dual

    1350 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. R2 Plus2. A9 Dual

Everyday essentials
Everyday essentials — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Dimensions (HxWxD)
  • 155.7 Х 77 Х 9.2 mm
  • 120.5 Х 63.9 Х 10.6 mm
Weight
  • 167 g
  • 116 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 3.5" inch
Screen resolution
  • 1080 x 1920 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 1350 mAh
  • Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Mediatek MT6753 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 83.4 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 69.6%
  • 47.4%
PPI /points per inch/
  • 401 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Rear camera, main
  • 13 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 1/3''
  • 1.12µm
  • PDAF
  • 2 MP
Functions
  • Dual-LED dual-tone flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 13 MP
  • VGA
Performance

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

Performance — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Processor CPU
  • Octa-core 1.3 GHz
  • Dual-core 1.0 GHz
Graphics processor GPU
  • Mali-T720
Unknown
Antutu 7 score *
  • 38456
Unknown
GeekBench 4 Single Core *
  • 606
Unknown
GeekBench 4 Multi-Core *
  • 2464
Unknown
General specs
General specs — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Release date
  • 2017
  • November
  • 2014
Colors
  • Black
  • Gold
  • White
  • Black
Battery life
  • Stand by time- Up to 725 h (2G) / Up to 625 h (3G) Talking time- Up to 26 h (2G) / Up to 16 h (3G)
  • Stand by time- Up to 240 h Talking time- Up to 3 h 20 min
Communication and Connectivity
Communication and Connectivity — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
SIM card
  • Dual SIM (Micro-SIM)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 7(2600)
  • 12(700)
  • 17(700)
  • 28(700)
Unknown
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.61 W/kg (head) 0.69 W/kg (body)
Music and Audio
Music and Audio — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for R2 Plus, A9 Dual.
SpecificationR2 PlusA9 Dual
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Accelerometer