LG GT540 Optimus vs Plum Trigger Z104

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

    Trigger Z104: 23.5 g lighter

    GT540 Optimus:
    115.5 g
    Trigger Z104:
    92 g
  • Width

    GT540 Optimus: 7 mm narrower

    GT540 Optimus:
    54.5 mm
    Trigger Z104:
    61.5 mm
  • Screen diagonal

    GT540 Optimus: 0.5 in smaller diagonal

    GT540 Optimus:
    3 in
    Trigger Z104:
    3.5 in
  • Depth

    Trigger Z104: 1.1 mm thinner

    GT540 Optimus:
    12.7 mm
    Trigger Z104:
    11.6 mm
  • Height

    GT540 Optimus: 8 mm shorter

    GT540 Optimus:
    109 mm
    Trigger Z104:
    117 mm
  • Release year

    GT540 Optimus:
    2010
    Trigger Z104:
    2013

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. GT540 Optimus

    Height:
    109 mm
    Width:
    54.5 mm
    Depth:
    12.7 mm +1.1 mm versus Trigger Z104
  2. 2. Trigger Z104

    Height:
    117 mm +8 mm versus GT540 Optimus
    Width:
    61.5 mm +7 mm versus GT540 Optimus
    Depth:
    11.6 mm

Weight

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

  1. 1. GT540 Optimus

    115.5 g

    +23.5 g versus Trigger Z104

  2. 2. Trigger Z104

    92 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.

  1. 1. GT540 Optimus

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    26.8 cm²
  2. 2. Trigger Z104

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

Trigger Z104 has approximately 36.1% more rectangular screen area than GT540 Optimus.

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.

GT540 Optimus: Original memory entry

139 MB · 156 MB RAM

Trigger Z104: Original memory entry

512 MB · 256 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. GT540 Optimus

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

2. Trigger Z104

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. GT540 Optimus

    1500 mAh

    +150 mAh versus Trigger Z104

  2. 2. Trigger Z104

    1350 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. GT540 Optimus2. Trigger Z104

Everyday essentials
Everyday essentials — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Dimensions (HxWxD)
  • 109 Х 54.5 Х 12.7 mm
  • 117 Х 61.5 Х 11.6 mm
Weight
  • 115.5 g
  • 92 g
Technology
  • TFT
Unknown
Screen size
  • 3" inch
  • 3.5" inch
Screen resolution
  • 320 x 480 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 139 MB
  • 156 MB RAM
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 1350 mAh
  • Removable Li-Ion
Operating system OS
  • Android 1.6 (Donut)
  • upgradable to 2.1 (Eclair)
  • Android 4.0 (Ice Cream Sandwich)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Screen area
  • 26.8 cm2
  • 36.5 cm2
Screen format
  • 3:2 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 45.1%
  • 50.7%
PPI /points per inch/
  • 192 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 5 MP
Video
  • 480p@17fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
Performance
Performance — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Processor CPU
  • 600 MHz
  • Dual-core 1.2 GHz
General specs
General specs — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Release date
  • 2010
  • January
  • 2013
Colors
  • Black
  • White
  • Pink
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 500 h (2G) / Up to 500 h (3G) Talking time- Up to 5 h 30 min (2G) / Up to 7 h 20 min (3G)
  • Stand by time- Up to 270 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
SIM card
  • Mini-SIM
  • Dual SIM (dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 7.2/0.384 Mbps
  • Yes
  • 384 kbps
GPRS
  • Class 10
  • Class 12
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB
  • microUSB
Bluetooth
  • 2.1
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.93 W/kg (head) 0.63 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Radio
  • Stereo FM radio
  • RDS
  • Stereo FM radio
Other features
Other features — specifications for GT540 Optimus, Trigger Z104.
SpecificationGT540 OptimusTrigger Z104
Dop
  • Sensors Accelerometer MP4/DivX/Xvid/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Organizer -Document viewer -Voice memo -Predictive text input Also known as LG GT540 Swift
  • LG Loop GT540
  • Sensors Accelerometer
  • proximity - Z105 Single SIM Z104 Dual SIM