Celkon A66 vs Lava Z40

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

    A66: 22 g lighter

    A66:
    98 g
    Z40:
    120 g
  • Width

    Z40: 3.3 mm narrower

    A66:
    67.2 mm
    Z40:
    63.9 mm
  • Screen diagonal

    Z40: 0.5 in smaller diagonal

    A66:
    4.5 in
    Z40:
    4 in
  • Depth

    A66: 0.7 mm thinner

    A66:
    11 mm
    Z40:
    11.7 mm
  • Height

    Z40: 10.5 mm shorter

    A66:
    136 mm
    Z40:
    125.5 mm
  • Release year

    A66:
    2014
    Z40:
    2019

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. A66

    Height:
    136 mm +10.5 mm versus Z40
    Width:
    67.2 mm +3.3 mm versus Z40
    Depth:
    11 mm
  2. 2. Z40

    Height:
    125.5 mm
    Width:
    63.9 mm
    Depth:
    11.7 mm +0.7 mm versus A66

Weight

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

  1. 1. A66

    98 g

  2. 2. Z40

    120 g

    +22 g versus A66

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. A66

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Z40

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

A66 has approximately 22.6% 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 A66, Z40, compared at the same storage capacity.
StorageA66Z40
8 GB Unknown 1 GB RAM
A66: Original memory entry

4 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. A66

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

2. Z40

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

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. A66

    2000 mAh

  2. 2. Z40

    2250 mAh

    +250 mAh versus A66

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. A662. Z40

Everyday essentials
Everyday essentials — specifications for A66, Z40.
SpecificationA66Z40
Dimensions (HxWxD)
  • 136 Х 67.2 Х 11 mm
  • 125.5 Х 63.9 Х 11.7 mm
Weight
  • 98 g
  • 120 g
Technology
  • TFT
  • TN TFT
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Li-Ion
  • 2250 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1.2 (Jelly Bean)
  • Android 8.1 Oreo (Go edition)
Chipset Unknown
  • Unisoc SC9832E
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A66, Z40.
SpecificationA66Z40
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 61.1%
  • 56.8%
PPI /points per inch/
  • 218 PPI
  • 233 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for A66, Z40.
SpecificationA66Z40
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • 2 MP
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance
Performance — specifications for A66, Z40.
SpecificationA66Z40
Processor CPU
  • Dual-core 1.2 GHz
  • Quad-core 1.4 GHz
Graphics processor GPU Unknown
  • Mali
General specs
General specs — specifications for A66, Z40.
SpecificationA66Z40
Release date
  • 2014
  • 2019
  • March
Colors
  • White
  • Black
  • Gold
  • Glossy Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 3500 INR
Battery life
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A66, Z40.
SpecificationA66Z40
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • 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)
Speed Unknown
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A66, Z40.
SpecificationA66Z40
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A66, Z40.
SpecificationA66Z40
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer For India