Micromax A28 Bolt vs Sharp Aquos S2

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

    A28 Bolt: 51 g lighter

    A28 Bolt:
    89 g
    Aquos S2:
    140 g
  • Width

    A28 Bolt: 9.5 mm narrower

    A28 Bolt:
    62.5 mm
    Aquos S2:
    72 mm
  • Screen diagonal

    A28 Bolt: 2 in smaller diagonal

    A28 Bolt:
    3.5 in
    Aquos S2:
    5.5 in
  • Rear camera layout

    A28 Bolt:
    Single
    Aquos S2:
    Dual
  • Depth

    Aquos S2: 4.6 mm thinner

    A28 Bolt:
    12.5 mm
    Aquos S2:
    7.9 mm
  • Height

    A28 Bolt: 24.9 mm shorter

    A28 Bolt:
    116.9 mm
    Aquos S2:
    141.8 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. A28 Bolt

    Height:
    116.9 mm
    Width:
    62.5 mm
    Depth:
    12.5 mm +4.6 mm versus Aquos S2
  2. 2. Aquos S2

    Height:
    141.8 mm +24.9 mm versus A28 Bolt
    Width:
    72 mm +9.5 mm versus A28 Bolt
    Depth:
    7.9 mm

Weight

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

  1. 1. A28 Bolt

    89 g

  2. 2. Aquos S2

    140 g

    +51 g versus A28 Bolt

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. A28 Bolt

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Aquos S2

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    17:9
    Approximate rectangular screen area:
    80.7 cm²

Aquos S2 has approximately 121.2% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A28 Bolt: Original memory entry

512 MB · 256 MB RAM

Aquos S2: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

Practical features

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

1. A28 Bolt

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

2. Aquos S2

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. A28 Bolt

    1500 mAh

  2. 2. Aquos S2

    3020 mAh

    +1520 mAh versus A28 Bolt

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. A28 Bolt2. Aquos S2

Everyday essentials
Everyday essentials — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Dimensions (HxWxD)
  • 116.9 Х 62.5 Х 12.5 mm
  • 141.8 Х 72 Х 7.9 mm
Weight
  • 89 g
  • 140 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 5.5" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2040 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 3020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3 (Gingerbread)
  • Android 7.1.1 (Nougat)
Chipset Unknown
  • Qualcomm SDM630 Snapdragon 630 (14 nm) 64/4GB -Qualcomm SDM660 Snapdragon 660 (14 nm) 128/6GB
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 36.5 cm2
  • 80.7 cm2
Screen format
  • 3:2 (height:width)
  • 17:9 (height:width)
Screen to body ratio
  • 49.9%
  • 79.0%
PPI /points per inch/
  • 165 PPI
  • 420 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Rear camera, main
  • 0.3 MP
  • Single
  • 12 MP
  • Dual
Camera specs Unknown
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1/3.2''
  • 1.4µm
  • dual pixel PDAF -8 MP
Functions Unknown
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 320p
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
  • 1/3.2''
  • 1.4µm
Performance

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

Performance — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Processor CPU
  • 1.0 GHz Cortex-A5
  • Octa-core (4x2.2 GHz Cortex-A53 & 4x1.8 GHz Cortex A53) 64/4GB -Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) 128/6GB
Graphics processor GPU
  • Mali-300
  • Adreno 508 64/4GB -Adreno 512 128/6GB
Antutu 7 score * Unknown
  • 88256
GeekBench 4 Single Core * Unknown
  • 859
GeekBench 4 Multi-Core * Unknown
  • 4079
GeekBench 4 RenderScript * Unknown
  • 3688
GeekBench 5 Single Core * Unknown
  • 173
GeekBench 5 Multi-Core * Unknown
  • 994
General specs
General specs — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Release date
  • 2014
  • 2017
  • August
Colors
  • Black
  • White
  • Black
  • Blue
  • Green
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 40 EUR
  • 450 EUR
Battery life
  • Stand by time- Up to 260 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
SIM card
  • Dual SIM (Mini-SIM)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 28(700)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 2.1
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Radio
  • FM radio
  • recording
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A28 Bolt, Aquos S2.
SpecificationA28 BoltAquos S2
Dop Unknown
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W