You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.<

BLU R1 HD vs BLU Studio 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.

  • Chipset

    R1 HD:
    Mediatek MT6735 (28 nm)
    Studio J2:
    Mediatek MT6570 (28 nm)
  • Depth

    R1 HD: 1.7 mm thinner

    R1 HD:
    8.7 mm
    Studio J2:
    10.4 mm
  • Release year

    R1 HD:
    2016
    Studio J2:
    2017

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. R1 HD

    Height:
    143.5 mm
    Width:
    72 mm
    Depth:
    8.7 mm
  2. 2. Studio J2

    Height:
    144.9 mm
    Width:
    72.9 mm
    Depth:
    10.4 mm +1.7 mm versus R1 HD

Weight

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

  1. 1. R1 HD

    142 g

  2. 2. Studio J2

    143 g

    +1 g versus R1 HD

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. R1 HD

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

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

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

R1 HD: Original memory entry

16 GB · 2 GB RAM 8 GB · 1 GB RAM

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. R1 HD

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

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. R1 HD

    2500 mAh

    +500 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. R1 HD2. Studio J2

Everyday essentials
Everyday essentials — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Dimensions (HxWxD)
  • 143.5 Х 72 Х 8.7 mm
  • 144.9 Х 72.9 Х 10.4 mm
Weight
  • 142 g
  • 143 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM 8 GB
  • 1 GB RAM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2500 mAh
  • Non-removable Li-Ion
  • 2000 mAh
  • Removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 6.0 (Marshmallow)
Chipset
  • Mediatek MT6735 (28 nm)
  • Mediatek MT6570 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 66.7%
  • 65.2%
PPI /points per inch/
  • 294 PPI
  • 196 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
  • AF
  • 5 MP
Functions
  • LED flash
  • LED
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 5 MP
  • 2 MP
Performance

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

Performance — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Mali-T720
  • Mali-400
Antutu 7 score * Unknown
  • 11535
GeekBench 4 Single Core *
  • 558
  • 390
GeekBench 4 Multi-Core *
  • 1554
  • 604
GeekBench 4 RenderScript *
  • 879
Unknown
General specs
General specs — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Release date
  • 2016
  • June
  • 2017
  • May
Colors
  • Midnight Black
  • Black
  • Gold
  • Rose Gold
Battery life
  • Stand by time- Up to 600 h (2G) / Up to 500 h (3G) Talking time- Up to 24 h (2G) / Up to 15 h (3G)
  • 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)
Communication and Connectivity
Communication and Connectivity — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 7(2600)
  • 12(700)
  • 17(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 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Radio
  • No
  • No
Other features
Other features — specifications for R1 HD, Studio J2.
SpecificationR1 HDStudio J2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer