Lava Z91 vs Nokia N78

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

    N78: 45.2 g lighter

    Z91:
    147 g
    N78:
    101.8 g
  • Width

    N78: 23.9 mm narrower

    Z91:
    72.9 mm
    N78:
    49 mm
  • Screen diagonal

    N78: 3.3 in smaller diagonal

    Z91:
    5.7 in
    N78:
    2.4 in
  • Depth

    Z91: 7.4 mm thinner

    Z91:
    7.7 mm
    N78:
    15.1 mm
  • Height

    N78: 39 mm shorter

    Z91:
    152 mm
    N78:
    113 mm
  • Release year

    Z91:
    2018
    N78:
    2008

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 +39 mm versus N78
    Width:
    72.9 mm +23.9 mm versus N78
    Depth:
    7.7 mm
  2. 2. N78

    Height:
    113 mm
    Width:
    49 mm
    Depth:
    15.1 mm +7.4 mm versus Z91

Weight

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

  1. 1. Z91

    147 g

    +45.2 g versus N78

  2. 2. N78

    101.8 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. Z91

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. N78

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²

Z91 has approximately 370.1% more rectangular screen area than N78.

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, N78, compared at the same storage capacity.
StorageZ91N78
32 GB 3 GB RAM Unknown
N78: Original memory entry

76 MB · 96 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. Z91

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

2. N78

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD (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. Z91

    3000 mAh

    +1800 mAh versus N78

  2. 2. N78

    1200 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. N78

Everyday essentials
Everyday essentials — specifications for Z91, N78.
SpecificationZ91N78
Dimensions (HxWxD)
  • 152 Х 72.9 Х 7.7 mm
  • 113 Х 49 Х 15.1 mm
Weight
  • 147 g
  • 101.8 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.7" inch
  • 2.4" inch
Screen resolution
  • 720 x 1440 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 76 MB
  • 96 MB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.1 (Nougat)
  • Symbian
  • S60 rel. 3.2
Chipset
  • Mediatek MT6739 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z91, N78.
SpecificationZ91N78
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 17.8 cm2
Screen format
  • 18:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 75.7%
  • 32.2%
PPI /points per inch/
  • 282 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for Z91, N78.
SpecificationZ91N78
Rear camera, main
  • 13 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • 1.12µm
  • AF
  • 3.15 MP
  • AF
Functions
  • LED flash
  • Carl Zeiss optics
  • LED flash
Video
  • 1080p@30fps
  • 480p@15fps
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • CIF videocall camera
Performance

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

Performance — specifications for Z91, N78.
SpecificationZ91N78
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • 369 MHz ARM 11
Graphics processor GPU
  • PowerVR GE8100
Unknown
Antutu 7 score *
  • 35722
Unknown
General specs
General specs — specifications for Z91, N78.
SpecificationZ91N78
Release date
  • 2018
  • March
  • 2008
  • February
Colors
  • Blue
  • Brown
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10000 INR
  • 170 EUR
Battery life Unknown
  • Stand by time- Up to 320 h (2G) / 312 h (3G) Talking time- Up to 4 h 20 min (2G) / 3 h 10 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Z91, N78.
SpecificationZ91N78
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-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
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 11
  • 118.4 kbits
Edge
  • Yes
  • Class 32
  • 296 / 177.6 kbits
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
  • UPnP technology
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS; Nokia Maps
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.26 W/kg (head) 1.04 W/kg (body) SAR EU - 1.00 W/kg (head)
Music and Audio
Music and Audio — specifications for Z91, N78.
SpecificationZ91N78
Radio
  • FM radio
  • Stereo FM radio
  • RDS; FM trans
Others Unknown
  • Touch-sensitive Navi wheel
Other features
Other features — specifications for Z91, N78.
SpecificationZ91N78
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Push to Talk -Voice command/dial -Organizer -Printing -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -Predictive text input -Photo/video editor