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Samsung i780 vs Sharp Aquos R2 compact

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

    i780: 15 g lighter

    i780:
    120 g
    Aquos R2 compact:
    135 g
  • Width

    i780: 2.7 mm narrower

    i780:
    61.3 mm
    Aquos R2 compact:
    64 mm
  • Screen diagonal

    i780: 2.65 in smaller diagonal

    i780:
    2.55 in
    Aquos R2 compact:
    5.2 in
  • Depth

    Aquos R2 compact: 3.6 mm thinner

    i780:
    12.9 mm
    Aquos R2 compact:
    9.3 mm
  • Height

    i780: 15.1 mm shorter

    i780:
    115.9 mm
    Aquos R2 compact:
    131 mm
  • Release year

    i780:
    2007
    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.

  1. 1. i780

    Height:
    115.9 mm
    Width:
    61.3 mm
    Depth:
    12.9 mm +3.6 mm versus Aquos R2 compact
  2. 2. Aquos R2 compact

    Height:
    131 mm +15.1 mm versus i780
    Width:
    64 mm +2.7 mm versus i780
    Depth:
    9.3 mm

Weight

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

  1. 1. i780

    120 g

  2. 2. Aquos R2 compact

    135 g

    +15 g versus i780

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. i780

    Screen diagonal:
    2.55 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    21 cm²
  2. 2. Aquos R2 compact

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    67.5 cm²

Aquos R2 compact has approximately 221.8% more rectangular screen area than i780.

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.

i780: Original memory entry

128 MB RAM · 256 MB ROM

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. i780

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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 battery capacity

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

  1. 1. i780

    1480 mAh

  2. 2. Aquos R2 compact

    2500 mAh

    +1020 mAh versus i780

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. i7802. Aquos R2 compact

Everyday essentials
Everyday essentials — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Dimensions (HxWxD)
  • 115.9 Х 61.3 Х 12.9 mm
  • 131 Х 64 Х 9.3 mm
Weight
  • 120 g
  • 135 g
Technology
  • TFT
  • IGZO IPS LCD
Screen size
  • 2.55" inch
  • 5.2" inch
Screen resolution
  • 320 x 320 px
  • 1080 x 2280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 512 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1480 mAh
  • Removable Li-Ion
  • 2500 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 9.0 (Pie)
Chipset Unknown
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • No
  • Yes
Display
Display — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 21.0 cm2
  • 67.5 cm2
Screen format
  • 1:1 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 29.5%
  • 80.5%
PPI /points per inch/
  • 177 PPI
  • 485 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Rear camera, main
  • 2 MP
  • Single
  • 22.6 MP
  • Single
Camera specs
  • 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 videocall camera
  • 8 MP
  • f/2.2
  • 23 mm
Performance
Performance — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Processor CPU
  • 32-bit Marvell PXA310 624 MHz
  • Octa-core (4x2.6 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU Unknown
  • Adreno 630
General specs
General specs — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Release date
  • 2007
  • September
  • 2018
  • November
Colors
  • Black
  • Smokey Green
  • Deep White
  • Pure Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
Unknown
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 7 h
Unknown
Body build Unknown
  • Front glass
  • aluminum frame
  • plastic back
Communication and Connectivity
Communication and Connectivity — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
SIM card
  • Mini-SIM
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • 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
  • Proprietary
  • 2.0
  • Type-C 1.0 reversible connector (PowerDelivery 2.0)
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.48 W/kg (head) 0.73 W/kg (body) SAR EU - 0.51 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Radio
  • No
  • 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 — specifications for i780, Aquos R2 compact.
Specificationi780Aquos R2 compact
Dop
  • Pocket Office -Voice memo -Callia Player
  • Callia Reader -Photo Slides -SmartConverter -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player - Optical trackpad
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins)