Samsung Galaxy S2 vs Xiaomi Redmi Note 4G

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 4G:
    LCD
  • Weight

    Galaxy S2: 59 g lighter

    Galaxy S2:
    116 g
    Redmi Note 4G:
    175 g
  • Width

    Galaxy S2: 9.9 mm narrower

    Galaxy S2:
    66.1 mm
    Redmi Note 4G:
    76 mm
  • Screen diagonal

    Galaxy S2: 1.2 in smaller diagonal

    Galaxy S2:
    4.3 in
    Redmi Note 4G:
    5.5 in
  • Chipset

    Galaxy S2:
    Exynos 4210 Dual
    Redmi Note 4G:
    Mediatek MT6797 Helio X20 (20 nm)
  • Height

    Galaxy S2: 25.7 mm shorter

    Galaxy S2:
    125.3 mm
    Redmi Note 4G:
    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. Galaxy S2

    Height:
    125.3 mm
    Width:
    66.1 mm
    Depth:
    8.5 mm
  2. 2. Redmi Note 4G

    Height:
    151 mm +25.7 mm versus Galaxy S2
    Width:
    76 mm +9.9 mm versus Galaxy S2
    Depth:
    8.4 mm

Weight

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

  1. 1. Galaxy S2

    116 g

  2. 2. Redmi Note 4G

    175 g

    +59 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 4G

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

Redmi Note 4G 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 4G, compared at the same storage capacity.
StorageGalaxy S2Redmi Note 4G
16 GB 1 GB RAM Unknown
32 GB 1 GB RAM Unknown
Redmi Note 4G: Original memory entry

16 GB · 2 GB RAM - Standard edition64 GB · 3 GB RAM - High edition64 GB · 4 GB RAM - Exclusive

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 4G

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. Galaxy S2

    1650 mAh

  2. 2. Redmi Note 4G

    4100 mAh

    +2450 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 4G

Everyday essentials
Everyday essentials — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
Dimensions (HxWxD)
  • 125.3 Х 66.1 Х 8.5 mm
  • 151 Х 76 Х 8.4 mm
Weight
  • 116 g
  • 175 g
Technology
  • Super AMOLED Plus
  • IPS LCD
Screen size
  • 4.3" inch
  • 5.5" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 1920 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
  • 16 GB
  • 2 GB RAM - Standard edition64 GB
  • 3 GB RAM - High edition64 GB
  • 4 GB RAM - Exclusive
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.
  • 1650 mAh
  • Removable Li-Ion
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.3.4 (Gingerbread)
  • upgradable to 4.1 (Jelly Bean); TouchWiz UI 4
  • Android 6.0 (Marshmallow); MIUI 10
Chipset
  • Exynos 4210 Dual
  • Mediatek MT6797 Helio X20 (20 nm)
NFC
  • Optional
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
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%
  • 72.7%
PPI /points per inch/
  • 217 PPI
  • 401 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • f/2.6
  • 1/3.2''
  • AF
  • 13 MP
  • PDAF
  • f/2.0
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 720p
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
Processor CPU
  • Dual-core 1.2 GHz Cortex-A9
  • Deca-core 2.1 GHz
Graphics processor GPU
  • Mali-400MP4
  • Mali-T880 MP4
Antutu 7 score *
  • 9100
  • 21789
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 4G.
SpecificationGalaxy S2Redmi Note 4G
Release date
  • 2011
  • February. Released 2011
  • April
  • 2016
  • August
Colors
  • Black
  • White
  • Pink
  • Silver
  • Gray
  • Gold
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 170 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
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE
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 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0 (MHL TV-out)
  • USB Host
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 3.0
  • A2DP
  • aptX
  • 4.2
  • 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 4G.
SpecificationGalaxy S2Redmi Note 4G
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy S2, Redmi Note 4G.
SpecificationGalaxy S2Redmi Note 4G
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - For China