Lava Z91 vs LG Class

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.

  • Width

    Class: 1.1 mm narrower

    Z91:
    72.9 mm
    Class:
    71.8 mm
  • Screen diagonal

    Class: 0.7 in smaller diagonal

    Z91:
    5.7 in
    Class:
    5 in
  • Chipset

    Z91:
    Mediatek MT6739 (28 nm)
    Class:
    Qualcomm MSM8916 Snapdragon 410 (28 nm)
  • Height

    Class: 10 mm shorter

    Z91:
    152 mm
    Class:
    142 mm
  • Release year

    Z91:
    2018
    Class:
    2015

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. Z91

    Height:
    152 mm +10 mm versus Class
    Width:
    72.9 mm +1.1 mm versus Class
    Depth:
    7.7 mm
  2. 2. Class

    Height:
    142 mm
    Width:
    71.8 mm
    Depth:
    7.4 mm

Weight

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

  1. 1. Z91

    147 g

  2. 2. Class

    150 g

    +3 g versus Z91

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. Z91

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. Class

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

Z91 has approximately 21.7% more rectangular screen area than Class.

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.

Recorded RAM for Z91, Class, compared at the same storage capacity.
StorageZ91Class
32 GB 3 GB RAM Unknown
Class: Original memory entry

16 GB · 1.5 GB RAM (H650E) · 2 GB RAM (F620S)

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Z91

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

2. Class

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot) - F620SmicroSD · up to 32 GB (dedicated slot) - H650E

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. Z91

    3000 mAh

    +950 mAh versus Class

  2. 2. Class

    2050 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. Z912. Class

Everyday essentials
Everyday essentials — specifications for Z91, Class.
SpecificationZ91Class
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 142 Х 71.8 Х 7.4 mm
Weight
  • 147 g
  • 150 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 5" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 16 GB
  • 1.5 GB RAM (H650E)
  • 2 GB RAM (F620S)
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot) - F620SmicroSD
  • up to 32 GB (dedicated slot) - H650E
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 2050 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.1 (Nougat)
  • Android 5.1.1 (Lollipop)
  • upgradаble to 6.0 (Marshmallow)
Chipset
  • Mediatek MT6739 (28 nm)
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, Class.
SpecificationZ91Class
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 68.9 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 75.7%
  • 67.6%
PPI /points per inch/
  • 282 PPI
  • 294 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Z91, Class.
SpecificationZ91Class
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 13 MP
  • 1/3''
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 8 MP
Performance

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

Performance — specifications for Z91, Class.
SpecificationZ91Class
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU
  • PowerVR GE8100
  • Adreno 306
Antutu 7 score *
  • 35722
Unknown
General specs
General specs — specifications for Z91, Class.
SpecificationZ91Class
Release date
  • 2018
  • March
  • 2015
  • September
Colors
  • Blue
  • Gold
  • Silver
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 190 EUR
Battery life Unknown
  • Stand by time- Up to 340 h (2G) / Up to 340 h (3G) Talking time- Up to 6 h (2G) / Up to 10 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Z91, Class.
SpecificationZ91Class
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - H650E
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Class 33
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.1
  • A2DP
Music and Audio
Music and Audio — specifications for Z91, Class.
SpecificationZ91Class
Radio
  • FM radio
  • FM radio
  • RDS
Other features
Other features — specifications for Z91, Class.
SpecificationZ91Class
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Accelerometer
  • proximity
  • compass - Also known as LG Class