Lava Z71 vs LG Joy

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Joy: 22 g lighter

    Z71:
    150 g
    Joy:
    128 g
  • Width

    Joy: 6.9 mm narrower

    Z71:
    70.9 mm
    Joy:
    64 mm
  • Screen diagonal

    Joy: 1.71 in smaller diagonal

    Z71:
    5.71 in
    Joy:
    4 in
  • Chipset

    Z71:
    Mediatek MT6762 Helio P22 (12 nm)
    Joy:
    Qualcomm MSM8210 Snapdragon 200 (28 nm)
  • Rear camera layout

    Z71:
    Dual
    Joy:
    Single
  • Depth

    Z71: 2.9 mm thinner

    Z71:
    9 mm
    Joy:
    11.9 mm

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. Z71

    Height:
    145.6 mm +22.9 mm versus Joy
    Width:
    70.9 mm +6.9 mm versus Joy
    Depth:
    9 mm
  2. 2. Joy

    Height:
    122.7 mm
    Width:
    64 mm
    Depth:
    11.9 mm +2.9 mm versus Z71

Weight

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

  1. 1. Z71

    150 g

    +22 g versus Joy

  2. 2. Joy

    128 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. Z71

    Screen diagonal:
    5.71 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    81.4 cm²
  2. 2. Joy

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

Z71 has approximately 78.7% more rectangular screen area than Joy.

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 Z71, Joy, compared at the same storage capacity.
StorageZ71Joy
32 GB 2 GB RAM Unknown
Joy: 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. Z71

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

2. Joy

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (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. Z71

    3200 mAh

    +1300 mAh versus Joy

  2. 2. Joy

    1900 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. Z712. Joy

Everyday essentials
Everyday essentials — specifications for Z71, Joy.
SpecificationZ71Joy
Dimensions (HxWxD)
  • 145.6 Х 70.9 Х 9 mm
  • 122.7 Х 64 Х 11.9 mm
Weight
  • 150 g
  • 128 g
Technology
  • IPS LCD
Unknown
Screen size
  • 5.71" inch
  • 4" inch
Screen resolution
  • 720 x 1520 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 2GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Po
  • 1900 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Android 4.4 (KitKat)
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
  • Qualcomm MSM8210 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z71, Joy.
SpecificationZ71Joy
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 81.4 cm2
  • 45.5 cm2
Screen format
  • 19:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 78.8%
  • 58.0%
PPI /points per inch/
  • 295 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Z71, Joy.
SpecificationZ71Joy
Rear camera, main
  • 13 MP
  • Dual
  • 5 MP
  • Single
Camera specs
  • 13 MP 2 MP
  • 5 MP
Functions
  • LED flash
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 5 MP
  • VGA
Performance
Performance — specifications for Z71, Joy.
SpecificationZ71Joy
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 302
General specs
General specs — specifications for Z71, Joy.
SpecificationZ71Joy
Release date
  • 2020
  • January
  • 2015
  • February
Colors
  • Ruby Red
  • Steel Blue
  • Dark Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 90 EUR
Battery life Unknown
  • Stand by time- Up to 518 h (2G) / Up to 641 h (3G)
Body build
  • Glass front
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Z71, Joy.
SpecificationZ71Joy
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Micro-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)
  • 8(900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800)
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
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 1.25 W/kg (head) 1.10 W/kg (body)
Music and Audio
Music and Audio — specifications for Z71, Joy.
SpecificationZ71Joy
Radio
  • FM radio
  • FM radio
  • RDS
Other features
Other features — specifications for Z71, Joy.
SpecificationZ71Joy
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - For India
  • Sensors Accelerometer Also known as LG Joy H220