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LG Optimus M vs Nokia E51

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.

  • Weight

    E51: 53 g lighter

    Optimus M:
    153 g
    E51:
    100 g
  • Width

    E51: 10 mm narrower

    Optimus M:
    56 mm
    E51:
    46 mm
  • Screen diagonal

    E51: 1.2 in smaller diagonal

    Optimus M:
    3.2 in
    E51:
    2 in
  • Depth

    E51: 4 mm thinner

    Optimus M:
    16 mm
    E51:
    12 mm
  • Release year

    Optimus M:
    2010
    E51:
    2007

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
Front — relative 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. Optimus M: height 116 mm; Width 56 mm. E51: height 114.8 mm; Width 46 mm. Optimus M: 116 × 56 mm 1 E51: 114.8 × 46 mm 2
Side
Side — relative 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. Optimus M: height 116 mm; Depth 16 mm. E51: height 114.8 mm; Depth 12 mm. Optimus M: 116 × 16 mm 1 E51: 114.8 × 12 mm 2
  1. 1. Optimus M

    Height:
    116 mm
    Width:
    56 mm +10 mm versus E51
    Depth:
    16 mm +4 mm versus E51
    Weight:
    153 g
  2. 2. E51

    Height:
    114.8 mm
    Width:
    46 mm
    Depth:
    12 mm
    Weight:
    100 g

Weight

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

  1. 1. Optimus M

    153 g

    +53 g versus E51

  2. 2. E51

    100 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.

Screen size
Relative rectangular screen sizes; numbers match the phone labels below 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. Optimus M: screen diagonal 3.2 in; aspect ratio (height:width) 3:2; approximate rectangular area 30.5 cm². E51: screen diagonal 2 in; aspect ratio (height:width) 4:3; approximate rectangular area 12.4 cm². Optimus M: 3.2 in, 3:2, About 30.5 cm² rectangular area 1 E51: 2 in, 4:3, About 12.4 cm² rectangular area 2
  1. 1. Optimus M

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²
  2. 2. E51

    Screen diagonal:
    2 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    12.4 cm²

Optimus M has approximately 146.2% 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.

Optimus M: Original memory entry

150 MB

E51: Original memory entry

130 MB · 96 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. Optimus M

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

2. E51

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (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. Optimus M

    1500 mAh

    +450 mAh versus E51

  2. 2. E51

    1050 mAh

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. Optimus M2. E51

Everyday essentials
Everyday essentials — specifications for Optimus M, E51.
SpecificationOptimus ME51
Dimensions (HxWxD)
  • 116 Х 56 Х 16 mm
  • 114.8 Х 46 Х 12 mm
Weight
  • 153 g
  • 100 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 2" inch
Screen resolution
  • 320 x 480 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 130 MB
  • 96 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1050 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Symbian OS 9.2
  • Series 60 v3.1 UI
Headphone jack
  • Yes
  • No
Display
Display — specifications for Optimus M, E51.
SpecificationOptimus ME51
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 65K
  • 16M
Screen area
  • 30.5 cm2
  • 12.4 cm2
Screen format
  • 3:2 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 46.9%
  • 23.5%
PPI /points per inch/
  • 180 PPI
  • 200 PPI
Camera and Video
Camera and Video — specifications for Optimus M, E51.
SpecificationOptimus ME51
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 2 MP
Video
  • 480p
  • 320p@15fps
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Optimus M, E51.
SpecificationOptimus ME51
Processor CPU
  • 600 MHz
  • 369 MHz ARM 11
General specs
General specs — specifications for Optimus M, E51.
SpecificationOptimus ME51
Release date
  • 2010
  • November
  • 2007
  • September
Colors
  • Gray
  • Black
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 60 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 337 h Talking time- Up to 7 h 30 min
  • Stand by time- Up to 310 h Talking time- Up to 4 h 20 min
Communication and Connectivity
Communication and Connectivity — specifications for Optimus M, E51.
SpecificationOptimus ME51
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - CDMA 800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • EV-DO Rev.0
  • 153.2 Kbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • No
  • Class 32
Edge
  • No
  • Class 32
Wi-Fi
  • Wi-Fi 802.11 b/g
  • hotspot
  • Wi-Fi 802.11b/g
  • VoIP over WLAN
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB
  • miniUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 1.26 W/kg (head) 0.48 W/kg (body)
  • SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head)
Music and Audio
Music and Audio — specifications for Optimus M, E51.
SpecificationOptimus ME51
Radio
  • No
  • FM radio
Others Unknown
  • Five-way scroll key -Downloadable themes
  • 2.5 mm audio jack
Other features
Other features — specifications for Optimus M, E51.
SpecificationOptimus ME51
Dop
  • Sensors Accelerometer
  • proximity
  • compass - DivX/MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Document viewer -Organizer -Voice memo/dial/commands -Predictive text input - For MetroPCS
  • 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