Lava Z40 vs Samsung i770 Saga

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

    Z40: 10 g lighter

    Z40:
    120 g
    i770 Saga:
    130 g
  • Width

    i770 Saga: 1.9 mm narrower

    Z40:
    63.9 mm
    i770 Saga:
    62 mm
  • Screen diagonal

    i770 Saga: 1.45 in smaller diagonal

    Z40:
    4 in
    i770 Saga:
    2.55 in
  • Chipset

    Z40:
    Unisoc SC9832E
    i770 Saga:
    Qualcomm MSM7500
  • Depth

    Z40: 1.8 mm thinner

    Z40:
    11.7 mm
    i770 Saga:
    13.5 mm
  • Release year

    Z40:
    2019
    i770 Saga:
    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. Z40

    Height:
    125.5 mm
    Width:
    63.9 mm +1.9 mm versus i770 Saga
    Depth:
    11.7 mm
  2. 2. i770 Saga

    Height:
    124 mm
    Width:
    62 mm
    Depth:
    13.5 mm +1.8 mm versus Z40

Weight

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

  1. 1. Z40

    120 g

  2. 2. i770 Saga

    130 g

    +10 g versus Z40

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. Z40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. i770 Saga

    Screen diagonal:
    2.55 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    21 cm²

Z40 has approximately 117.1% more rectangular screen area than i770 Saga.

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 Z40, i770 Saga, compared at the same storage capacity.
StorageZ40i770 Saga
8 GB 1 GB RAM Unknown

Practical features

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

1. Z40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

2. i770 Saga

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Z402. i770 Saga

Everyday essentials
Everyday essentials — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Dimensions (HxWxD)
  • 125.5 Х 63.9 Х 11.7 mm
  • 124 Х 62 Х 13.5 mm
Weight
  • 120 g
  • 130 g
Technology
  • TN TFT
  • TFT
Screen size
  • 4" inch
  • 2.55" inch
Screen resolution
  • 480 x 800 px
  • 320 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
Unknown
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2250 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Microsoft Windows Mobile 6.1 Professional
Chipset
  • Unisoc SC9832E
  • Qualcomm MSM7500
Headphone jack
  • Yes
  • No
Display
Display — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 45.5 cm2
  • 21.0 cm2
Screen format
  • 5:3 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 56.8%
  • 27.3%
PPI /points per inch/
  • 233 PPI
  • 177 PPI
Screen protection
  • Corning Gorilla Glass (unspecified version)
Unknown
Camera and Video
Camera and Video — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 0 MP,
Specifications
  • 2 MP
Unknown
Performance
Performance — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Processor CPU
  • Quad-core 1.4 GHz
  • 400 MHz ARM 11
Graphics processor GPU
  • Mali
Unknown
General specs
General specs — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Release date
  • 2019
  • March
  • 2008
  • November
Colors
  • Gold
  • Glossy Black
  • Black
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 3500 INR
  • 140 EUR
Battery life Unknown
  • Stand by time- Up to 300 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
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 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • No
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.68 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Radio
  • FM radio
  • No
Other features
Other features — specifications for Z40, i770 Saga.
SpecificationZ40i770 Saga
Dop
  • Sensors Accelerometer For India
  • Pocket Office -Voice memo/dial -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Predictive text input For Verizon