BLU Dash Music JR vs LG K40

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

    Dash Music JR: 29 g lighter

    Dash Music JR:
    121 g
    K40:
    150 g
  • Width

    Dash Music JR: 8.1 mm narrower

    Dash Music JR:
    63.8 mm
    K40:
    71.9 mm
  • Screen diagonal

    Dash Music JR: 1.7 in smaller diagonal

    Dash Music JR:
    4 in
    K40:
    5.7 in
  • Depth

    K40: 4.2 mm thinner

    Dash Music JR:
    12.5 mm
    K40:
    8.3 mm
  • Height

    Dash Music JR: 28 mm shorter

    Dash Music JR:
    125 mm
    K40:
    153 mm
  • Release year

    Dash Music JR:
    2014
    K40:
    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. Dash Music JR

    Height:
    125 mm
    Width:
    63.8 mm
    Depth:
    12.5 mm +4.2 mm versus K40
  2. 2. K40

    Height:
    153 mm +28 mm versus Dash Music JR
    Width:
    71.9 mm +8.1 mm versus Dash Music JR
    Depth:
    8.3 mm

Weight

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

  1. 1. Dash Music JR

    121 g

  2. 2. K40

    150 g

    +29 g versus Dash Music JR

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. Dash Music JR

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. K40

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²

K40 has approximately 84.1% more rectangular screen area than Dash Music JR.

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.

Dash Music JR: Original memory entry

512 MB · 256 MB RAM

K40: Original memory entry

32 GB · 2/3 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. Dash Music JR

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

2. K40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (dedicated slot)

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. Dash Music JR

    1450 mAh

  2. 2. K40

    3000 mAh

    +1550 mAh versus Dash Music JR

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. Dash Music JR2. K40

Everyday essentials
Everyday essentials — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Dimensions (HxWxD)
  • 125 Х 63.8 Х 12.5 mm
  • 153 Х 71.9 Х 8.3 mm
Weight
  • 121 g
  • 150 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 5.7" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 32 GB
  • 2/3 GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1450 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 8.1 (Oreo)
Chipset Unknown
  • Mediatek MT6762 Helio P22 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 83.8 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 57.1%
  • 76.2%
PPI /points per inch/
  • 233 PPI
  • 282 PPI
Camera and Video
Camera and Video — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Rear camera, main
  • 2 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 2 MP
  • 16 MP
  • f/2.0
  • PDAF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Processor CPU
  • Dual-core 1.3 GHz
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Mali-400
  • PowerVR GE8320
Antutu 7 score * Unknown
  • 75203
General specs
General specs — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Release date
  • 2014
  • November
  • 2019
  • February
Colors
  • Grey
  • Orange
  • Yellow
  • Blue
  • Pink
  • White
  • Black
  • Platinum
  • Blue
Battery life
  • Stand by time- Up to 600 h Talking time- Up to 18 h
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
SIM card
  • Dual SIM (Mini-SIM/ Micro-SIM)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed Unknown
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Radio
  • Stereo FM radio
  • FM radio
Others Unknown
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Dash Music JR, K40.
SpecificationDash Music JRK40
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant - Also known as LG K12+
  • LG K12 Plus
  • LG X4 (2019)