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Nokia E51 vs T-Mobile Sidekick LX

Compare recorded specifications, size and practical differences.

Nokia E51

Nokia E51

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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.

  • WeightE51: 62 g lighterE51: 100 g · Sidekick LX: 162 g
  • WidthE51: 14 mm narrowerE51: 46 mm · Sidekick LX: 60 mm
  • Screen diagonalE51: 1 in smaller diagonalE51: 2 in · Sidekick LX: 3 in
  • DepthE51: 10 mm thinnerE51: 12 mm · Sidekick LX: 22 mm
  • HeightE51: 14.7 mm shorterE51: 114.8 mm · Sidekick LX: 129.5 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.

Front
E51: 114.8 × 46 mm 1 Sidekick LX: 129.5 × 60 mm 2
Side
E51: 114.8 × 12 mm 1 Sidekick LX: 129.5 × 22 mm 2
  1. 1. E51
    Height
    114.8 mm
    Width
    46 mm
    Depth
    12 mm
    Weight
    100 g
  2. 2. Sidekick LX
    Height
    129.5 mm+14.7 mm versus E51
    Width
    60 mm+14 mm versus E51
    Depth
    22 mm+10 mm versus E51
    Weight
    162 g
Weight

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

  1. 1. E51100 g
  2. 2. Sidekick LX162 g

    +62 g versus E51

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.

Screen size
E51: 2 in, 4:3, About 12.4 cm² rectangular area 1 Sidekick LX: 3 in, 5:3, About 25.6 cm² rectangular area 2
  1. 1. E51 2 in · 4:3 About 12.4 cm² rectangular area
  2. 2. Sidekick LX 3 in · 5:3 About 25.6 cm² rectangular area

Sidekick LX has approximately 106.8% more rectangular screen area than E51.

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.

E51: Original memory entry

130 MB · 96 MB RAM

Sidekick LX: Original memory entry

64 MB RAM · 64 MB 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. E51

NFC
Unknown
Headphone jack
No
Memory card support
See details microSD · up to 16 GB (dedicated slot)

2. Sidekick LX

NFC
Unknown
Headphone jack
No
Memory card support
See details microSD (dedicated slot)

Battery capacity

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

Recorded capacity

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

  1. 1. E511050 mAh
  2. 2. Sidekick LX1540 mAh

    +490 mAh versus E51

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. E512. Sidekick LX

Everyday essentials
Everyday essentials
SpecificationE51Sidekick LX
Dimensions (HxWxD)
  • 114.8 Х 46 Х 12 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 100 g
  • 162 g
Technology
  • TFT
  • TFT
Screen size
  • 2" inch
  • 3" inch
Screen resolution
  • 240 x 320 px
  • 240 x 400 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 130 MB
  • 96 MB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 1050 mAh
  • Removable Li-Ion
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian OS 9.2
  • Series 60 v3.1 UI
  • Danger OS
Headphone jack
  • No
  • No
Display
Display
SpecificationE51Sidekick LX
Display colors
  • 16M
  • 65K
Screen area
  • 12.4 cm2
  • 25.6 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 23.5%
  • 33.0%
PPI /points per inch/
  • 200 PPI
  • 155 PPI
Camera and Video
Camera and Video
SpecificationE51Sidekick LX
Rear camera, main
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 2 MP
  • 1.3 MP
Video
  • 320p@15fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance
SpecificationE51Sidekick LX
Processor CPU
  • 369 MHz ARM 11
Unknown
General specs
General specs
SpecificationE51Sidekick LX
Release date
  • 2007
  • September
  • 2007
  • September
Colors
  • Black
  • Silver
  • Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 310 h Talking time- Up to 4 h 20 min
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Communication and Connectivity
Communication and Connectivity
SpecificationE51Sidekick LX
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Class 32
  • Class 10
Edge
  • Class 32
  • Class 10
Wi-Fi
  • Wi-Fi 802.11b/g
  • VoIP over WLAN
  • No
GPS
  • No
  • No
USB
  • miniUSB 2.0
  • Proprietary
Bluetooth
  • 2.0
  • A2DP
  • 2.0
Harmful irradiation
  • SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head)
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio
SpecificationE51Sidekick LX
Radio
  • FM radio
  • No
Others
  • Five-way scroll key -Downloadable themes
  • 2.5 mm audio jack
Unknown
Other features
Other features
SpecificationE51Sidekick LX
Dop
  • Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) incl. MS Office 2007 support via free update -Predictive text input -Voice command/memo -Organizer
  • MP3/WMA audio player -MP4 player -Voice memo