HTC Desire HD2 vs Samsung Galaxy A51

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.

Not enough comparable data or meaningful differences for automatic highlights. Check the recorded specifications below.

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. Desire HD2

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. Galaxy A51

    Height:
    158.5 mm
    Width:
    73.6 mm
    Depth:
    7.9 mm
    Weight:
    172 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Desire HD2

    Desire HD2: Screen geometry unavailable or conflicting.

  2. 2. Galaxy A51

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

Recorded RAM for Desire HD2, Galaxy A51, compared at the same storage capacity.
StorageDesire HD2Galaxy A51
64 GB Unknown 4 GB RAM
128 GB Unknown 4 / 6 / 8 GB RAM Alternative RAM configurations

Practical features

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

1. Desire HD2

NFC:
Unknown
Headphone jack:
Unknown
Memory card support:
Unknown

2. Galaxy A51

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Desire HD22. Galaxy A51

Everyday essentials
Everyday essentials — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Dimensions (HxWxD) Unknown
  • 158.5 Х 73.6 Х 7.9 mm
Weight Unknown
  • 172 g
Technology Unknown
  • Super AMOLED
Screen size Unknown
  • 6.5" inch
Screen resolution Unknown
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 64GB 4GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
Memory card support Unknown
  • microSD
  • up to 1 TB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied. Unknown
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS Unknown
  • Android 10.0; One UI 2
Chipset Unknown
  • Exynos 9611 (10nm)
NFC Unknown
  • Yes
Headphone jack Unknown
  • Yes
Display
Display — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Touchscreen Unknown
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area Unknown
  • 102.0 cm2
Screen format Unknown
  • 20:9 (height:width)
Screen to body ratio Unknown
  • 87.4%
PPI /points per inch/ Unknown
  • 405 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Rear camera, main Unknown
  • 48 MP
  • Quad
Camera specs Unknown
  • 48 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -12 MP
  • f/2.2
  • 12mm (ultrawide) -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • 1.12µm -5 MP
  • 1.12µm
  • depth sensor
Functions Unknown
  • HDR
Video Unknown
  • 1080p@30fps
Front camera, selfie Unknown
  • 32 MP
  • Single
Specifications Unknown
  • 32 MP
  • f/2.2
  • 26mm (wide)
  • 1/2.8"
  • 0.8µm
Performance

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

Performance — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Processor CPU Unknown
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-G72 MP3
Antutu 7 score * Unknown
  • 155326
Antutu 8 score * Unknown
  • 186846
GeekBench 5 Single Core * Unknown
  • 322
GeekBench 5 Multi-Core * Unknown
  • 1212
General specs
General specs — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Release date Unknown
  • 2019
  • December
Colors Unknown
  • Prism Crush Black
  • White
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • $280
Battery life Unknown
  • Talking time- Up to 32 h (3G) Music play - Up to 87 h
Body build Unknown
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
SIM card Unknown
  • 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 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE (unspecified)
Speed Unknown
  • HSPA
  • LTE-A
GPRS Unknown
  • Yes
Edge Unknown
  • Yes
Wi-Fi Unknown
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS Unknown
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB Unknown
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth Unknown
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.80 W/kg (head) 0.67 W/kg (body) SAR EU - 0.37 W/kg (head) 1.59 W/kg (body)
Music and Audio
Music and Audio — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Radio Unknown
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Desire HD2, Galaxy A51.
SpecificationDesire HD2Galaxy A51
Dop Unknown
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - ANT+ - Fast battery charging 15W - Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia)