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Micromax A78 vs Sharp Aquos R2 compact

Compare recorded specifications, size and practical differences.

Micromax A78

Micromax A78

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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.

  • Screen diagonalA78: 1.7 in smaller diagonalA78: 3.5 in · Aquos R2 compact: 5.2 in
  • ChipsetMediatek MT6573 (65 nm) / Qualcomm SDM845 Snapdragon 845 (10 nm)A78: Mediatek MT6573 (65 nm) · Aquos R2 compact: Qualcomm SDM845 Snapdragon 845 (10 nm)
  • DepthAquos R2 compact: 1.6 mm thinnerAquos R2 compact: 9.3 mm · A78: 10.9 mm
  • HeightA78: 11 mm shorterA78: 120 mm · Aquos R2 compact: 131 mm
  • Release year2012 / 2018A78: 2012 · Aquos R2 compact: 2018

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.

Front
A78: 120 × 63.5 mm 1 Aquos R2 compact: 131 × 64 mm 2
Side
A78: 120 × 10.9 mm 1 Aquos R2 compact: 131 × 9.3 mm 2
  1. 1. A78
    Height
    120 mm
    Width
    63.5 mm
    Depth
    10.9 mm+1.6 mm versus Aquos R2 compact
    Weight
    Unknown
  2. 2. Aquos R2 compact
    Height
    131 mm+11 mm versus A78
    Width
    64 mm
    Depth
    9.3 mm
    Weight
    135 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.

Screen size
A78: 3.5 in, 4:3, About 37.9 cm² rectangular area 1 Aquos R2 compact: 5.2 in, 19:9, About 67.5 cm² rectangular area 2
  1. 1. A78 3.5 in · 4:3 About 37.9 cm² rectangular area
  2. 2. Aquos R2 compact 5.2 in · 19:9 About 67.5 cm² rectangular area

Aquos R2 compact has approximately 77.9% more rectangular screen area than A78.

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.

Aquos R2 compact: Original memory entry

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. A78

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

2. Aquos R2 compact

NFC
Yes
Headphone jack
Yes
Memory card support
See details microSD · up to 512 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

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

  1. 1. A781300 mAh
  2. 2. Aquos R2 compact2500 mAh

    +1200 mAh versus A78

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. A782. Aquos R2 compact

Everyday essentials
Everyday essentials
SpecificationA78Aquos R2 compact
Dimensions (HxWxD)
  • 120 Х 63.5 Х 10.9 mm
  • 131 Х 64 Х 9.3 mm
Weight
  • 0 g
  • 135 g
Technology
  • TFT
  • IGZO IPS LCD
Screen size
  • 3.5" inch
  • 5.2" inch
Screen resolution
  • 360 x 480 px
  • 1080 x 2280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB
BatteryCapacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 2500 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.3 (Gingerbread)
  • Android 9.0 (Pie)
Chipset
  • Mediatek MT6573 (65 nm)
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationA78Aquos R2 compact
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 37.9 cm2
  • 67.5 cm2
Screen format
  • 4:3 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 49.8%
  • 80.5%
PPI /points per inch/
  • 0 PPI
  • 485 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video
SpecificationA78Aquos R2 compact
Rear camera, main
  • 3.2 MP
  • Single
  • 22.6 MP
  • Single
Camera specs
  • 3.2 MP
  • 22.6 MP
  • f/1.9
  • 22 mm
  • PDAF
  • OIS
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.2
  • 23 mm
Performance
Performance
SpecificationA78Aquos R2 compact
Processor CPU
  • 650 MHz Cortex-A9
  • Octa-core (4x2.6 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU
  • PowerVR SGX531
  • Adreno 630
General specs
General specs
SpecificationA78Aquos R2 compact
Release date
  • 2012
  • February
  • 2018
  • November
Colors
  • Brown
  • Smokey Green
  • Deep White
  • Pure Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • Front glass
  • aluminum frame
  • plastic back
Communication and Connectivity
Communication and Connectivity
SpecificationA78Aquos R2 compact
SIM card
  • Dual SIM (Mini-SIM)
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
USB
  • 2.0
  • 2.0
  • Type-C 1.0 reversible connector (PowerDelivery 2.0)
Bluetooth
  • 2.1
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio
SpecificationA78Aquos R2 compact
Radio
  • FM radio
  • No
Others Unknown
  • 120 Hz -HDR10 -DCI-P3
  • Active noise cancellation with dedicated mic -Dolby Vision & Dolby Atmos -24-bit/192kHz audio
Other features
Other features
SpecificationA78Aquos R2 compact
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/WAV/WMA/AAC player -MP4/H.263 player -Organizer -Photo/video editor -Document viewer -Voice memo/dial -Predictive text input
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins)

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