Samsung i550 vs T-Mobile HD2

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

    i550: 48 g lighter

    i550:
    109 g
    HD2:
    157 g
  • Width

    i550: 14 mm narrower

    i550:
    53 mm
    HD2:
    67 mm
  • Screen diagonal

    i550: 1.7 in smaller diagonal

    i550:
    2.6 in
    HD2:
    4.3 in
  • Chipset

    i550:
    TI OMAP 2430
    HD2:
    Qualcomm QSD8250 Snapdragon S1
  • Depth

    HD2: 2.8 mm thinner

    i550:
    13.8 mm
    HD2:
    11 mm
  • Height

    i550: 7 mm shorter

    i550:
    115 mm
    HD2:
    122 mm

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. i550

    Height:
    115 mm
    Width:
    53 mm
    Depth:
    13.8 mm +2.8 mm versus HD2
  2. 2. HD2

    Height:
    122 mm +7 mm versus i550
    Width:
    67 mm +14 mm versus i550
    Depth:
    11 mm

Weight

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

  1. 1. i550

    109 g

  2. 2. HD2

    157 g

    +48 g versus i550

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. i550

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    20.9 cm²
  2. 2. HD2

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    52.6 cm²

HD2 has approximately 151.4% more rectangular screen area than i550.

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.

i550: Original memory entry

150 MB

HD2: Original memory entry

576 MB RAM · 1 GB ROM

Practical features

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

1. i550

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD (dedicated slot)

2. HD2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 16 GB included

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. i550

    1200 mAh

  2. 2. HD2

    1230 mAh

    +30 mAh versus i550

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. i5502. HD2

Everyday essentials
Everyday essentials — specifications for i550, HD2.
Specificationi550HD2
Dimensions (HxWxD)
  • 115 Х 53 Х 13.8 mm
  • 122 Х 67 Х 11 mm
Weight
  • 109 g
  • 157 g
Technology
  • TFT
  • TFT
Screen size
  • 2.6" inch
  • 4.3" inch
Screen resolution
  • 240 x 320 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 576 MB RAM
  • 1 GB ROM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 1230 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian OS 9.2
  • Series 60 v3.1 UI
  • Microsoft Windows Mobile 6.5 Professional; Sense UI
Chipset
  • TI OMAP 2430
  • Qualcomm QSD8250 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for i550, HD2.
Specificationi550HD2
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 256K
  • 65K
Screen area
  • 20.9 cm2
  • 52.6 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 34.3%
  • 64.4%
PPI /points per inch/
  • 154 PPI
  • 217 PPI
Camera and Video
Camera and Video — specifications for i550, HD2.
Specificationi550HD2
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • Dual-LED flash
Video
  • Yes
  • 480p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for i550, HD2.
Specificationi550HD2
Processor CPU
  • 330 MHz ARM 1136
  • 1.0 GHz Scorpion
Graphics processor GPU
  • PowerVR MBX
  • Adreno 200
General specs
General specs — specifications for i550, HD2.
Specificationi550HD2
Release date
  • 2007
  • August
  • 2010
  • January
Colors
  • Black
  • Silver
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 230 EUR
Battery life
  • Stand by time- Up to 360 h Talking time- Up to 8 h
  • Stand by time- Up to 480 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for i550, HD2.
Specificationi550HD2
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 7.2/2 Mbps
GPRS
  • Class 12
  • Class 12
Edge
  • Class 12
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g (Samsung i550w only)
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • Yes
  • with A-GPS; NaviPanel
USB
  • 2.0
  • microUSB
Bluetooth
  • 2.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation
  • SAR - 0.32 W/kg (head) 0.41 W/kg (body) SAR EU - 0.72 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for i550, HD2.
Specificationi550HD2
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Other features
Other features — specifications for i550, HD2.
Specificationi550HD2
Dop
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Organizer -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) - Trackball - Also version Samsung i550w with WLAN
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/eAAC+ player -MP4/WMV/H.264 player -Pocket Office -HTC Peep
  • HTC Footprints -T-mobile services: MobiTV
  • BLOCKBUSTER
  • Barnes & Nobl
  • Gogo Inflight Internet -Transformers & Transformers 2 movies preloaded -Voice memo -Predictive text input