Lava Z40 vs Samsung Focus S I937

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

    Focus S I937: 9.4 g lighter

    Z40:
    120 g
    Focus S I937:
    110.6 g
  • Width

    Z40: 2.9 mm narrower

    Z40:
    63.9 mm
    Focus S I937:
    66.8 mm
  • Screen diagonal

    Z40: 0.3 in smaller diagonal

    Z40:
    4 in
    Focus S I937:
    4.3 in
  • Depth

    Focus S I937: 3.2 mm thinner

    Z40:
    11.7 mm
    Focus S I937:
    8.5 mm
  • Release year

    Z40:
    2019
    Focus S I937:
    2011

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
    Depth:
    11.7 mm +3.2 mm versus Focus S I937
  2. 2. Focus S I937

    Height:
    126 mm
    Width:
    66.8 mm +2.9 mm versus Z40
    Depth:
    8.5 mm

Weight

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

  1. 1. Z40

    120 g

    +9.4 g versus Focus S I937

  2. 2. Focus S I937

    110.6 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. Z40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. Focus S I937

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

Focus S I937 has approximately 15.6% more rectangular screen area than Z40.

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, Focus S I937, compared at the same storage capacity.
StorageZ40Focus S I937
8 GB 1 GB RAM Unknown
Focus S I937: Original memory entry

16/32 GB · 512 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. Z40

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

2. Focus S I937

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. Z40

    2250 mAh

    +600 mAh versus Focus S I937

  2. 2. Focus S I937

    1650 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. Z402. Focus S I937

Everyday essentials
Everyday essentials — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Dimensions (HxWxD)
  • 125.5 Х 63.9 Х 11.7 mm
  • 126 Х 66.8 Х 8.5 mm
Weight
  • 120 g
  • 110.6 g
Technology
  • TN TFT
  • Super AMOLED Plus
Screen size
  • 4" inch
  • 4.3" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 16/32 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2250 mAh
  • Removable Li-Ion
  • 1650 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 Oreo (Go edition)
  • Microsoft Windows Phone 7.5 Mango
Chipset
  • Unisoc SC9832E
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 52.6 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 56.8%
  • 62.5%
PPI /points per inch/
  • 233 PPI
  • 217 PPI
Screen protection
  • Corning Gorilla Glass (unspecified version)
Unknown
Camera and Video
Camera and Video — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 720p@30fps
  • 720p
Front camera, selfie
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP
  • 1.3 MP
Performance
Performance — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Processor CPU
  • Quad-core 1.4 GHz
  • 1.4 GHz Scorpion
Graphics processor GPU
  • Mali
Unknown
General specs
General specs — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Release date
  • 2019
  • March
  • 2011
  • September
Colors
  • Gold
  • Glossy Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 3500 INR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 6 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
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
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 3.0
  • A2DP
  • EDR
Harmful irradiation Unknown
  • SAR - 0.33 W/kg (head) 1.12 W/kg (body)
Music and Audio
Music and Audio — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Other features
Other features — specifications for Z40, Focus S I937.
SpecificationZ40Focus S I937
Dop
  • Sensors Accelerometer For India
  • Sensors Accelerometer
  • proximity
  • compass - AT&T U-verse Mobile
  • NavigatorSM
  • FamilyMap
  • Radio
  • myWireless -Document viewer/editor -MP4/H.264/WMV player -MP3/WAV/WMA/eAAC+ player - For AT&T