Lava Z25 vs LG Quantum

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

    Z25: 28 g lighter

    Z25:
    148 g
    Quantum:
    176 g
  • Width

    Quantum: 11.5 mm narrower

    Z25:
    71 mm
    Quantum:
    59.5 mm
  • Screen diagonal

    Quantum: 1.5 in smaller diagonal

    Z25:
    5 in
    Quantum:
    3.5 in
  • Chipset

    Z25:
    Mediatek MT6737 (28 nm)
    Quantum:
    Qualcomm QSD8650 Snapdragon S1
  • Depth

    Z25: 6.8 mm thinner

    Z25:
    8.4 mm
    Quantum:
    15.2 mm
  • Height

    Quantum: 23.7 mm shorter

    Z25:
    143.2 mm
    Quantum:
    119.5 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.

  1. 1. Z25

    Height:
    143.2 mm +23.7 mm versus Quantum
    Width:
    71 mm +11.5 mm versus Quantum
    Depth:
    8.4 mm
  2. 2. Quantum

    Height:
    119.5 mm
    Width:
    59.5 mm
    Depth:
    15.2 mm +6.8 mm versus Z25

Weight

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

  1. 1. Z25

    148 g

  2. 2. Quantum

    176 g

    +28 g versus Z25

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. Z25

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Quantum

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

Z25 has approximately 97.7% 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.

Z25: Original memory entry

16 GB · 2/3 GB RAM

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. Z25

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses SIM 2 slot)

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. Z25

    2620 mAh

    +1120 mAh versus Quantum

  2. 2. Quantum

    1500 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. Z252. Quantum

Everyday essentials
Everyday essentials — specifications for Z25, Quantum.
SpecificationZ25Quantum
Dimensions (HxWxD)
  • 143.2 Х 71 Х 8.4 mm
  • 119.5 Х 59.5 Х 15.2 mm
Weight
  • 148 g
  • 176 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2/3 GB RAM
  • 16 GB
  • 512 MB RAM
  • 512 MB ROM
Memory card support
  • microSD
  • up to 128 GB (uses SIM 2 slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2620 mAh
  • Non-removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Microsoft Windows Phone 7
Chipset
  • Mediatek MT6737 (28 nm)
  • Qualcomm QSD8650 Snapdragon S1
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z25, Quantum.
SpecificationZ25Quantum
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 34.9 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 67.8%
  • 49.0%
PPI /points per inch/
  • 294 PPI
  • 267 PPI
Camera and Video

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Camera and Video — specifications for Z25, Quantum.
SpecificationZ25Quantum
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • f/2.0
  • 1/3.2''
  • 1.4µm
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 720p
Front camera, selfie
  • 5 MP
  • Single
  • 0 MP,
Specifications
  • 5 MP
  • 1/4''
  • 1.4µm
Unknown
DxOMark Main Score *
  • 70
Unknown
DxOMark Photo *
  • 74
Unknown
DxOMark Video *
  • 62
Unknown
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Z25, Quantum.
SpecificationZ25Quantum
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • 1.0 GHz Scorpion
Graphics processor GPU
  • Mali-T720MP2
  • Adreno 200
Antutu 7 score *
  • 40152
Unknown
GeekBench 4 RenderScript *
  • 1351
Unknown
General specs
General specs — specifications for Z25, Quantum.
SpecificationZ25Quantum
Release date
  • 2017
  • March
  • 2010
  • October
Colors
  • Gold
  • Black/White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 160 EUR
  • 80 EUR
Battery life Unknown
  • Stand by time- Up to 350 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Z25, Quantum.
SpecificationZ25Quantum
SIM card
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • LTE
  • HSPA
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • DLNA
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.0
  • 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 Z25, Quantum.
SpecificationZ25Quantum
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for Z25, Quantum.
SpecificationZ25Quantum
Dop
  • Sensors Accelerometer
  • proximity - For India
  • 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