LG Optimus Z vs Spice Mi-451 3G

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

    Optimus Z: 21 g lighter

    Optimus Z:
    135 g
    Mi-451 3G:
    156 g
  • Width

    Optimus Z: 12.6 mm narrower

    Optimus Z:
    56.9 mm
    Mi-451 3G:
    69.5 mm
  • Depth

    Mi-451 3G: 2.3 mm thinner

    Optimus Z:
    11 mm
    Mi-451 3G:
    8.7 mm
  • Height

    Optimus Z: 16.6 mm shorter

    Optimus Z:
    117.9 mm
    Mi-451 3G:
    134.5 mm
  • Release year

    Optimus Z:
    2010
    Mi-451 3G:
    2014

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 +2.3 mm versus Mi-451 3G
  2. 2. Mi-451 3G

    Height:
    134.5 mm +16.6 mm versus Optimus Z
    Width:
    69.5 mm +12.6 mm versus Optimus Z
    Depth:
    8.7 mm

Weight

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

  1. 1. Optimus Z

    135 g

  2. 2. Mi-451 3G

    156 g

    +21 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Optimus Z

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    37.9 cm²
  2. 2. Mi-451 3G

    Mi-451 3G: Screen geometry unavailable or conflicting.

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.

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. Mi-451 3G

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

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. Mi-451 3G

    1450 mAh

    +100 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. Mi-451 3G

Everyday essentials
Everyday essentials — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Dimensions (HxWxD)
  • 117.9 Х 56.9 Х 11 mm
  • 134.5 Х 69.5 Х 8.7 mm
Weight
  • 135 g
  • 156 g
Technology
  • TFT
Unknown
Screen size
  • 3.5" inch
  • 0" inch
Screen resolution
  • 480 x 640 px
  • 480 x 854 px
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 4 GB included
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Removable Li-Ion
  • 1450 mAh
  • Li-Ion
Operating system OS
  • Android 2.1 (Eclair)
  • upgradable to 2.2 (Froyo)
  • Android 4.4 (KitKat)
Chipset
  • Qualcomm QSD8250 Snapdragon S1
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
Unknown
Screen area
  • 37.9 cm2
Unknown
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 56.5%
Unknown
PPI /points per inch/
  • 229 PPI
  • 0 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 3.15 MP
Video
  • 720p
  • Yes
Front camera, selfie
  • 0 MP,
  • 1.3 MP
  • Single
Specifications Unknown
  • 1.3 MP
Performance
Performance — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Processor CPU
  • 1.0 GHz Scorpion
Unknown
Graphics processor GPU
  • Adreno 200
Unknown
General specs
General specs — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Release date
  • 2010
  • April
  • 2014
Colors
  • Black
  • White
  • Pink
  • White
  • Gray
Battery life
  • Stand by time- Up to 200 h Talking time- Up to 4 h 10 min
  • Stand by time- Up to 60 h Talking time- Up to 5 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
SIM card
  • Mini-SIM
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
GPRS
  • Class 10
  • Class 12
Edge
  • Class 10
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g
  • DLNA
  • hotspot (Android 2.2)
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • A-GPS only
USB
  • microUSB 2.0
  • microUSB
Bluetooth
  • 2.1
  • A2DP
  • 2.0
Music and Audio
Music and Audio — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
Radio
  • No
  • FM radio
Others
  • Dolby Mobile
Unknown
Other features
Other features — specifications for Optimus Z, Mi-451 3G.
SpecificationOptimus ZMi-451 3G
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 Also known as Spice Stellar 451 3G