BLU Dash M2 vs Samsung Galaxy A21

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.

  • Display technology

    OLED versus LCD

    Dash M2:
    LCD
    Galaxy A21:
    OLED
  • Screen diagonal

    Dash M2: 1.5 in smaller diagonal

    Dash M2:
    5 in
    Galaxy A21:
    6.5 in
  • Rear camera layout

    Dash M2:
    Single
    Galaxy A21:
    Quad
  • Release year

    Dash M2:
    2016
    Galaxy A21:
    2020

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 M2

    Height:
    145 mm
    Width:
    73.4 mm
    Depth:
    9.8 mm
    Weight:
    172 g
  2. 2. Galaxy A21

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

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 M2

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Galaxy A21

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

Galaxy A21 has approximately 48% more rectangular screen area than Dash M2.

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 Dash M2, Galaxy A21, compared at the same storage capacity.
StorageDash M2Galaxy A21
32 GB Unknown 3 GB RAM
Dash M2: Original memory entry

4 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. Dash M2

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

2. Galaxy A21

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (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 M2

    2000 mAh

  2. 2. Galaxy A21

    4000 mAh

    +2000 mAh versus Dash M2

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 M22. Galaxy A21

Everyday essentials
Everyday essentials — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Dimensions (HxWxD)
  • 145 Х 73.4 Х 9.8 mm
  • Х Х mm
Weight
  • 172 g
  • 0 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 5" inch
  • 6.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 64 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Po
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 10.0; One UI 2.0
NFC Unknown
  • Yes (market/region dependent)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 102.0 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 64.7%
Unknown
PPI /points per inch/
  • 196 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Rear camera, main
  • 5 MP
  • Single
  • 16 MP
  • Quad
Camera specs
  • 5 MP
  • 16 MP
  • (wide)
  • AF -8 MP
  • (ultrawide) -2 MP
  • (macro) -2 MP
  • (depth)
Functions
  • LED flash
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 13 MP
  • Single
Specifications
  • 2 MP
  • 13 MP
  • (wide)
Performance
Performance — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
Unknown
Graphics processor GPU
  • Mali-400
Unknown
General specs
General specs — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Release date
  • 2016
  • April
  • 2020
  • April 8
Colors
  • Black
  • Gold
  • White
  • Rose Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 250 EUR
Battery life
  • Stand by time- Up to 800 h (2G) / Up to 700 h (3G) Talking time- Up to 26 h (2G) / Up to 14 h (3G)
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 -4G - LTE
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • Yes
Bluetooth
  • 4.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Radio
  • Stereo FM radio
  • FM radio
Other features
Other features — specifications for Dash M2, Galaxy A21.
SpecificationDash M2Galaxy A21
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast charging 15W - Preliminary specifications