LG Optimus Z vs LG Quantum

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

    Optimus Z: 41 g lighter

    Optimus Z:
    135 g
    Quantum:
    176 g
  • Width

    Optimus Z: 2.6 mm narrower

    Optimus Z:
    56.9 mm
    Quantum:
    59.5 mm
  • Chipset

    Optimus Z:
    Qualcomm QSD8250 Snapdragon S1
    Quantum:
    Qualcomm QSD8650 Snapdragon S1
  • Depth

    Optimus Z: 4.2 mm thinner

    Optimus Z:
    11 mm
    Quantum:
    15.2 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. Optimus Z

    Height:
    117.9 mm
    Width:
    56.9 mm
    Depth:
    11 mm
  2. 2. Quantum

    Height:
    119.5 mm
    Width:
    59.5 mm +2.6 mm versus Optimus Z
    Depth:
    15.2 mm +4.2 mm versus Optimus Z

Weight

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

  1. 1. Optimus Z

    135 g

  2. 2. Quantum

    176 g

    +41 g versus Optimus Z

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. Optimus Z

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    37.9 cm²
  2. 2. Quantum

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

Optimus Z has approximately 8.8% more rectangular screen area than Quantum.

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.

Quantum: Original memory entry

16 GB · 512 MB RAM · 512 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. Optimus Z

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 4 GB included

2. Quantum

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

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 Z

    1350 mAh

  2. 2. Quantum

    1500 mAh

    +150 mAh versus Optimus Z

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 Z2. Quantum

Everyday essentials
Everyday essentials — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Dimensions (HxWxD)
  • 117.9 Х 56.9 Х 11 mm
  • 119.5 Х 59.5 Х 15.2 mm
Weight
  • 135 g
  • 176 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 3.5" inch
Screen resolution
  • 480 x 640 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 16 GB
  • 512 MB RAM
  • 512 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 4 GB included
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.1 (Eclair)
  • upgradable to 2.2 (Froyo)
  • Microsoft Windows Phone 7
Chipset
  • Qualcomm QSD8250 Snapdragon S1
  • Qualcomm QSD8650 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 37.9 cm2
  • 34.9 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 56.5%
  • 49.0%
PPI /points per inch/
  • 229 PPI
  • 267 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • 720p
  • 720p
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Processor CPU
  • 1.0 GHz Scorpion
  • 1.0 GHz Scorpion
Graphics processor GPU
  • Adreno 200
  • Adreno 200
General specs
General specs — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Release date
  • 2010
  • April
  • 2010
  • October
Colors
  • Black
  • White
  • Pink
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h 10 min
  • Stand by time- Up to 350 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
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
  • HSPA 7.2/0.384 Mbps
  • HSPA
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • DLNA
  • hotspot (Android 2.2)
  • Wi-Fi 802.11 b/g/n
  • DLNA
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.35 W/kg (head) 0.30 W/kg (body)
Music and Audio
Music and Audio — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Radio
  • No
  • Stereo FM radio
Others
  • Dolby Mobile
Unknown
Other features
Other features — specifications for Optimus Z, Quantum.
SpecificationOptimus ZQuantum
Dop
  • Sensors Accelerometer
  • proximity
  • compass - On-screen-phone function -Drag & Shake file sharing -TV Tuner (T-DMB) -HDMI port -MP3/WMA/AAC player -DivX/MP4/H.263 player -Organizer -Document viewer -Voice memo -Predictive text input - For South Korea Also known as LG KU9500
  • LG SU950
  • Sensors Accelerometer
  • proximity
  • compass - MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player -Organizer -Document viewer/editor -Voice memo/dial/command -Predictive text input - For AT&T