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Sharp Aquos R2 compact vs Xiaomi Redmi Note 4

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

    Aquos R2 compact: 30 g lighter

    Aquos R2 compact:
    135 g
    Redmi Note 4:
    165 g
  • Width

    Aquos R2 compact: 12 mm narrower

    Aquos R2 compact:
    64 mm
    Redmi Note 4:
    76 mm
  • Screen diagonal

    Aquos R2 compact: 0.3 in smaller diagonal

    Aquos R2 compact:
    5.2 in
    Redmi Note 4:
    5.5 in
  • Chipset

    Aquos R2 compact:
    Qualcomm SDM845 Snapdragon 845 (10 nm)
    Redmi Note 4:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Depth

    Redmi Note 4: 0.8 mm thinner

    Aquos R2 compact:
    9.3 mm
    Redmi Note 4:
    8.5 mm
  • Height

    Aquos R2 compact: 20 mm shorter

    Aquos R2 compact:
    131 mm
    Redmi Note 4:
    151 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. Aquos R2 compact

    Height:
    131 mm
    Width:
    64 mm
    Depth:
    9.3 mm +0.8 mm versus Redmi Note 4
  2. 2. Redmi Note 4

    Height:
    151 mm +20 mm versus Aquos R2 compact
    Width:
    76 mm +12 mm versus Aquos R2 compact
    Depth:
    8.5 mm

Weight

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

  1. 1. Aquos R2 compact

    135 g

  2. 2. Redmi Note 4

    165 g

    +30 g versus Aquos R2 compact

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. Aquos R2 compact

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    67.5 cm²
  2. 2. Redmi Note 4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²

Redmi Note 4 has approximately 23.6% more rectangular screen area than Aquos R2 compact.

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

Redmi Note 4: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM; 64 GB · 3 GB RAM (China only)

Practical features

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

1. Aquos R2 compact

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

2. Redmi Note 4

NFC:
Unknown
Headphone jack:
Yes
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. Aquos R2 compact

    2500 mAh

  2. 2. Redmi Note 4

    4100 mAh

    +1600 mAh versus Aquos R2 compact

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. Aquos R2 compact2. Redmi Note 4

Everyday essentials
Everyday essentials — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Dimensions (HxWxD)
  • 131 Х 64 Х 9.3 mm
  • 151 Х 76 Х 8.5 mm
Weight
  • 135 g
  • 165 g
Technology
  • IGZO IPS LCD
  • IPS LCD
Screen size
  • 5.2" inch
  • 5.5" inch
Screen resolution
  • 1080 x 2280 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM; 64 GB
  • 3 GB RAM (China only)
Memory card support
  • microSD
  • up to 512 GB
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2500 mAh
  • Non-removable Li-Ion
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie)
  • Android 6.0 (Marshmallow)
  • upgradable to 7.0 (Nougat); MIUI 10
Chipset
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 67.5 cm2
  • 83.4 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 80.5%
  • 72.7%
PPI /points per inch/
  • 485 PPI
  • 401 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Rear camera, main
  • 22.6 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 22.6 MP
  • f/1.9
  • 22 mm
  • PDAF
  • OIS
  • 13 MP
  • f/2.0
  • 1.12µm
  • PDAF
Functions
  • LED flash
  • HDR
  • panorama
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • 23 mm
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Processor CPU
  • Octa-core (4x2.6 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 630
  • Adreno 506
Antutu 7 score * Unknown
  • 76000
GeekBench 4 Single Core * Unknown
  • 1475
GeekBench 4 Multi-Core * Unknown
  • 4010
GeekBench 4 RenderScript * Unknown
  • 3151
Antutu 8 score * Unknown
  • 102376
GeekBench 5 Single Core * Unknown
  • 171
GeekBench 5 Multi-Core * Unknown
  • 917
General specs
General specs — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Release date
  • 2018
  • November
  • 2017
  • January
Colors
  • Smokey Green
  • Deep White
  • Pure Black
  • Dark Gray
  • Gold
  • Black
  • Lake Blue (64/4GB model)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 150 EUR
Body build
  • Front glass
  • aluminum frame
  • plastic back
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
SIM card
  • Nano-SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA
  • LTE
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector (PowerDelivery 2.0)
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Radio
  • No
  • FM radio
Others
  • 120 Hz -HDR10 -DCI-P3
  • Active noise cancellation with dedicated mic -Dolby Vision & Dolby Atmos -24-bit/192kHz audio
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Aquos R2 compact, Redmi Note 4.
SpecificationAquos R2 compactRedmi Note 4
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins)
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - For Global market. Also known as Xiaomi Redmi Note 4x Global.