Samsung Galaxy S2 vs Xiaomi Redmi Note

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.

  • Display technology

    OLED versus LCD

    Galaxy S2:
    OLED
    Redmi Note:
    LCD
  • Weight

    Galaxy S2: 83 g lighter

    Galaxy S2:
    116 g
    Redmi Note:
    199 g
  • Width

    Galaxy S2: 12.6 mm narrower

    Galaxy S2:
    66.1 mm
    Redmi Note:
    78.7 mm
  • Screen diagonal

    Galaxy S2: 1.2 in smaller diagonal

    Galaxy S2:
    4.3 in
    Redmi Note:
    5.5 in
  • Chipset

    Galaxy S2:
    Exynos 4210 Dual
    Redmi Note:
    Mediatek MT6592 (28 nm)
  • Depth

    Galaxy S2: 1 mm thinner

    Galaxy S2:
    8.5 mm
    Redmi Note:
    9.5 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. Galaxy S2

    Height:
    125.3 mm
    Width:
    66.1 mm
    Depth:
    8.5 mm
  2. 2. Redmi Note

    Height:
    154 mm +28.7 mm versus Galaxy S2
    Width:
    78.7 mm +12.6 mm versus Galaxy S2
    Depth:
    9.5 mm +1 mm versus Galaxy S2

Weight

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

  1. 1. Galaxy S2

    116 g

  2. 2. Redmi Note

    199 g

    +83 g versus Galaxy S2

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. Galaxy S2

    Screen diagonal:
    4.3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    52.6 cm²
  2. 2. Redmi Note

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

Redmi Note has approximately 58.5% more rectangular screen area than Galaxy S2.

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 Galaxy S2, Redmi Note, compared at the same storage capacity.
StorageGalaxy S2Redmi Note
16 GB 1 GB RAM Unknown
32 GB 1 GB RAM Unknown
Redmi Note: Original memory entry

8 GB · 1/2 GB 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. Galaxy S2

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

2. Redmi Note

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. Galaxy S2

    1650 mAh

  2. 2. Redmi Note

    3100 mAh

    +1450 mAh versus Galaxy S2

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. Galaxy S22. Redmi Note

Everyday essentials
Everyday essentials — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Dimensions (HxWxD)
  • 125.3 Х 66.1 Х 8.5 mm
  • 154 Х 78.7 Х 9.5 mm
Weight
  • 116 g
  • 199 g
Technology
  • Super AMOLED Plus
  • IPS LCD
Screen size
  • 4.3" inch
  • 5.5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 1 GB RAM
  • 8 GB
  • 1/2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1650 mAh
  • Removable Li-Ion
  • 3100 mAh
  • Removable Li-Po
Operating system OS
  • Android 2.3.4 (Gingerbread)
  • upgradable to 4.1 (Jelly Bean); TouchWiz UI 4
  • Android 4.2 (Jelly Bean)
  • upgradable to 4.4.4 (KitKat); MIUI 9.2
Chipset
  • Exynos 4210 Dual
  • Mediatek MT6592 (28 nm)
NFC
  • Optional
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 52.6 cm2
  • 83.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 63.5%
  • 68.8%
PPI /points per inch/
  • 217 PPI
  • 267 PPI
Screen protection
  • Corning Gorilla Glass
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • f/2.6
  • 1/3.2''
  • AF
  • 13 MP
  • f/2.2
  • 28mm (wide)
  • AF
Functions
  • LED flash
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance

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

Performance — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Processor CPU
  • Dual-core 1.2 GHz Cortex-A9
  • Octa-core 1.4/1.7 GHz Cortex-A7
Graphics processor GPU
  • Mali-400MP4
  • Mali-450MP4
Antutu 7 score *
  • 9100
  • 65210
GeekBench 4 Single Core *
  • 415
Unknown
GeekBench 4 Multi-Core *
  • 639
Unknown
GeekBench 4 RenderScript *
  • 346
Unknown
General specs
General specs — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Release date
  • 2011
  • February. Released 2011
  • April
  • 2014
  • March
Colors
  • Black
  • White
  • Pink
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 710 h (2G) / Up to 610 h (3G) Talking time- Up to 18 h 20 min (2G) / Up to 8 h 40 min (3G)
Unknown
Body build
  • plastic body
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
SIM card
  • Mini-SIM
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
GPRS
  • Class 12
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0 (MHL TV-out)
  • USB Host
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • A2DP
  • aptX
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.16 W/kg (head) 0.96 W/kg (body) SAR EU - 0.34 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • recording
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy S2, Redmi Note.
SpecificationGalaxy S2Redmi Note
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass