Samsung Galaxy S2 vs Xiaomi Redmi 3

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 3:
    LCD
  • Weight

    Galaxy S2: 28 g lighter

    Galaxy S2:
    116 g
    Redmi 3:
    144 g
  • Width

    Galaxy S2: 3.5 mm narrower

    Galaxy S2:
    66.1 mm
    Redmi 3:
    69.6 mm
  • Screen diagonal

    Galaxy S2: 0.7 in smaller diagonal

    Galaxy S2:
    4.3 in
    Redmi 3:
    5 in
  • Memory variants

    At 16 GB storage

    Galaxy S2:
    1 GB RAM
    Redmi 3:
    2 GB RAM
  • Chipset

    Galaxy S2:
    Exynos 4210 Dual
    Redmi 3:
    Qualcomm MSM8939v2 Snapdragon 616 (28 nm)

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 3

    Height:
    139.3 mm +14 mm versus Galaxy S2
    Width:
    69.6 mm +3.5 mm versus Galaxy S2
    Depth:
    8.5 mm

Weight

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

  1. 1. Galaxy S2

    116 g

  2. 2. Redmi 3

    144 g

    +28 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 3

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

Redmi 3 has approximately 31% 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 3, compared at the same storage capacity.
StorageGalaxy S2Redmi 3
16 GB Recorded for all phones 1 GB RAM 2 GB RAM
32 GB 1 GB RAM Not recorded

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 3

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 3

    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 3

Everyday essentials
Everyday essentials — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Dimensions (HxWxD)
  • 125.3 Х 66.1 Х 8.5 mm
  • 139.3 Х 69.6 Х 8.5 mm
Weight
  • 116 g
  • 144 g
Technology
  • Super AMOLED Plus
  • IPS LCD
Screen size
  • 4.3" inch
  • 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
  • 16 GB
  • 2 GB RAM
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-Ion
Operating system OS
  • Android 2.3.4 (Gingerbread)
  • upgradable to 4.1 (Jelly Bean); TouchWiz UI 4
  • Android 5.1 (Lollipop); MIUI 7
Chipset
  • Exynos 4210 Dual
  • Qualcomm MSM8939v2 Snapdragon 616 (28 nm)
NFC
  • Optional
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 52.6 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 63.5%
  • 71.1%
PPI /points per inch/
  • 217 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
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
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Processor CPU
  • Dual-core 1.2 GHz Cortex-A9
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.2 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400MP4
  • Adreno 405
Antutu 7 score *
  • 9100
  • 33714
GeekBench 4 Single Core *
  • 415
  • 633
GeekBench 4 Multi-Core *
  • 639
  • 1685
GeekBench 4 RenderScript *
  • 346
  • 1770
GeekBench 5 Single Core * Unknown
  • 89
GeekBench 5 Multi-Core * Unknown
  • 545
General specs
General specs — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Release date
  • 2011
  • February. Released 2011
  • April
  • 2016
  • January
Colors
  • Black
  • White
  • Pink
  • Gold
  • Dark Gray
  • Silver
  • Classic Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 160 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 3.
SpecificationGalaxy S2Redmi 3
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 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE
  • EV-DO Rev.A 3.1 Mbps
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
  • BDS
USB
  • microUSB 2.0 (MHL TV-out)
  • USB Host
  • microUSB 2.0
Bluetooth
  • 3.0
  • A2DP
  • aptX
  • 4.1
  • A2DP
Harmful irradiation
  • SAR - 0.16 W/kg (head) 0.96 W/kg (body) SAR EU - 0.34 W/kg (head)
  • SAR EU - 1.33 W/kg (head)
Music and Audio
Music and Audio — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy S2, Redmi 3.
SpecificationGalaxy S2Redmi 3
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging