Nokia N81 8GB vs T-Mobile HD2

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

    N81 8GB: 17 g lighter

    N81 8GB:
    140 g
    HD2:
    157 g
  • Width

    N81 8GB: 17 mm narrower

    N81 8GB:
    50 mm
    HD2:
    67 mm
  • Screen diagonal

    N81 8GB: 1.9 in smaller diagonal

    N81 8GB:
    2.4 in
    HD2:
    4.3 in
  • Depth

    HD2: 6.9 mm thinner

    N81 8GB:
    17.9 mm
    HD2:
    11 mm
  • Height

    N81 8GB: 20 mm shorter

    N81 8GB:
    102 mm
    HD2:
    122 mm
  • Release year

    N81 8GB:
    2007
    HD2:
    2010

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. N81 8GB

    Height:
    102 mm
    Width:
    50 mm
    Depth:
    17.9 mm +6.9 mm versus HD2
  2. 2. HD2

    Height:
    122 mm +20 mm versus N81 8GB
    Width:
    67 mm +17 mm versus N81 8GB
    Depth:
    11 mm

Weight

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

  1. 1. N81 8GB

    140 g

  2. 2. HD2

    157 g

    +17 g versus N81 8GB

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. N81 8GB

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 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 195% more rectangular screen area than N81 8GB.

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.

N81 8GB: Original memory entry

8 GB · 96 MB RAM

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. N81 8GB

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. N81 8GB

    1050 mAh

  2. 2. HD2

    1230 mAh

    +180 mAh versus N81 8GB

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. N81 8GB2. HD2

Everyday essentials
Everyday essentials — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Dimensions (HxWxD)
  • 102 Х 50 Х 17.9 mm
  • 122 Х 67 Х 11 mm
Weight
  • 140 g
  • 157 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" 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.
  • 8 GB
  • 96 MB RAM
  • 576 MB RAM
  • 1 GB ROM
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
  • 16 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Po
  • 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 Unknown
  • Qualcomm QSD8250 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 17.8 cm2
  • 52.6 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 35.0%
  • 64.4%
PPI /points per inch/
  • 167 PPI
  • 217 PPI
Camera and Video
Camera and Video — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Rear camera, main
  • 2 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 2 MP
  • 5 MP
  • AF
Functions
  • LED flash
  • Dual-LED flash
Video
  • 320p@15fps
  • 480p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • CIF videocall camera
Unknown
Performance
Performance — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Processor CPU
  • 369 MHz ARM 11
  • 1.0 GHz Scorpion
Graphics processor GPU Unknown
  • Adreno 200
General specs
General specs — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Release date
  • 2007
  • August
  • 2010
  • January
Colors
  • Cocoa brown
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 230 EUR
Battery life
  • Stand by time- Up to 410 h Talking time- Up to 4 h (2G) / 3 h (3G)
  • Stand by time- Up to 480 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • Yes
  • 384 kbps
  • HSPA 7.2/2 Mbps
GPRS
  • Class 10
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11b/g with UPnP
  • Wi-Fi 802.11 b/g
GPS
  • No
  • Yes
  • with A-GPS; NaviPanel
USB
  • microUSB 2.0
  • microUSB
Bluetooth
  • 2.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation
  • SAR - 0.81 W/kg (head) 0.60 W/kg (body) SAR EU - 0.73 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Radio
  • Stereo FM radio
  • Stereo FM radio
  • RDS
Others
  • Touch-sensitive Navi wheel
Unknown
Other features
Other features — specifications for N81 8GB, HD2.
SpecificationN81 8GBHD2
Dop
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Predictive text input -Push to talk -Voice dial/memo -Organizer
  • 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