Lava Z90 vs Micromax A28 Bolt

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

    A28 Bolt: 70 g lighter

    Z90:
    159 g
    A28 Bolt:
    89 g
  • Width

    A28 Bolt: 10.6 mm narrower

    Z90:
    73.1 mm
    A28 Bolt:
    62.5 mm
  • Screen diagonal

    A28 Bolt: 1.7 in smaller diagonal

    Z90:
    5.2 in
    A28 Bolt:
    3.5 in
  • Rear camera layout

    Z90:
    Dual
    A28 Bolt:
    Single
  • Depth

    Z90: 4.4 mm thinner

    Z90:
    8.1 mm
    A28 Bolt:
    12.5 mm
  • Height

    A28 Bolt: 31.6 mm shorter

    Z90:
    148.5 mm
    A28 Bolt:
    116.9 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. Z90

    Height:
    148.5 mm +31.6 mm versus A28 Bolt
    Width:
    73.1 mm +10.6 mm versus A28 Bolt
    Depth:
    8.1 mm
  2. 2. A28 Bolt

    Height:
    116.9 mm
    Width:
    62.5 mm
    Depth:
    12.5 mm +4.4 mm versus Z90

Weight

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

  1. 1. Z90

    159 g

    +70 g versus A28 Bolt

  2. 2. A28 Bolt

    89 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. Z90

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. A28 Bolt

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Z90 has approximately 104.4% more rectangular screen area than A28 Bolt.

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 Z90, A28 Bolt, compared at the same storage capacity.
StorageZ90A28 Bolt
32 GB 3 GB RAM Unknown
A28 Bolt: Original memory entry

512 MB · 256 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. Z90

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (uses SIM 2 slot)

2. A28 Bolt

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. Z90

    2750 mAh

    +1250 mAh versus A28 Bolt

  2. 2. A28 Bolt

    1500 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. Z902. A28 Bolt

Everyday essentials
Everyday essentials — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Dimensions (HxWxD)
  • 148.5 Х 73.1 Х 8.1 mm
  • 116.9 Х 62.5 Х 12.5 mm
Weight
  • 159 g
  • 89 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.2" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 64 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2750 mAh
  • Non-removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 2.3 (Gingerbread)
Chipset
  • Mediatek MT6737 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 74.5 cm2
  • 36.5 cm2
Screen format
  • 16:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 68.7%
  • 49.9%
PPI /points per inch/
  • 282 PPI
  • 165 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Rear camera, main
  • 8 MP
  • Dual
  • 0.3 MP
  • Single
Camera specs
  • 8 MP
  • f/2.0
  • AF -2 MP
  • depth sensor
Unknown
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • 320p
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • VGA
Performance

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

Performance — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Processor CPU
  • Quad-core 1.3 GHz Cortex-A53
  • 1.0 GHz Cortex-A5
Graphics processor GPU
  • Mali-T720MP2
  • Mali-300
Antutu 7 score *
  • 32569
Unknown
GeekBench 4 Single Core *
  • 572
Unknown
GeekBench 4 Multi-Core *
  • 1592
Unknown
General specs
General specs — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Release date
  • 2017
  • September
  • 2014
Colors
  • Blue
  • Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 10750 INR
  • 40 EUR
Battery life Unknown
  • Stand by time- Up to 260 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (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)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • microUSB 2.0
  • microUSB
Bluetooth
  • 4.0
  • A2DP
  • 2.1
  • A2DP
Music and Audio
Music and Audio — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Radio
  • FM radio
  • FM radio
  • recording
Other features
Other features — specifications for Z90, A28 Bolt.
SpecificationZ90A28 Bolt
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - For India
Unknown