Samsung Galaxy S2 vs Xiaomi Mi 4i

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
    Mi 4i:
    LCD
  • Weight

    Galaxy S2: 14 g lighter

    Galaxy S2:
    116 g
    Mi 4i:
    130 g
  • Width

    Galaxy S2: 3.5 mm narrower

    Galaxy S2:
    66.1 mm
    Mi 4i:
    69.6 mm
  • Screen diagonal

    Galaxy S2: 0.7 in smaller diagonal

    Galaxy S2:
    4.3 in
    Mi 4i:
    5 in
  • Memory variants

    At 16 GB storage

    Galaxy S2:
    1 GB RAM
    Mi 4i:
    2 GB RAM
  • Chipset

    Galaxy S2:
    Exynos 4210 Dual
    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (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 +0.7 mm versus Mi 4i
  2. 2. Mi 4i

    Height:
    138.1 mm +12.8 mm versus Galaxy S2
    Width:
    69.6 mm +3.5 mm versus Galaxy S2
    Depth:
    7.8 mm

Weight

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

  1. 1. Galaxy S2

    116 g

  2. 2. Mi 4i

    130 g

    +14 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. Mi 4i

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

Mi 4i 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, Mi 4i, compared at the same storage capacity.
StorageGalaxy S2Mi 4i
16 GB Recorded for all phones 1 GB RAM 2 GB RAM
32 GB Recorded for all phones 1 GB RAM 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. Mi 4i

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. Mi 4i

    3120 mAh

    +1470 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. Mi 4i

Everyday essentials
Everyday essentials — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Dimensions (HxWxD)
  • 125.3 Х 66.1 Х 8.5 mm
  • 138.1 Х 69.6 Х 7.8 mm
Weight
  • 116 g
  • 130 g
Technology
  • Super AMOLED Plus
  • IPS LCD
Screen size
  • 4.3" inch
  • 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
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1650 mAh
  • Removable Li-Ion
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.3.4 (Gingerbread)
  • upgradable to 4.1 (Jelly Bean); TouchWiz UI 4
  • Android 5.0.2 (Lollipop); MIUI 8.2
Chipset
  • Exynos 4210 Dual
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC
  • Optional
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
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%
  • 71.7%
PPI /points per inch/
  • 217 PPI
  • 441 PPI
Screen protection
  • Corning Gorilla Glass
  • Corning scratch-resistant glass
Camera and Video
Camera and Video — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Rear camera, main
  • 8 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 8 MP
  • f/2.6
  • 1/3.2''
  • AF
  • 13 MP
  • AF
  • f/2.0
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
  • 480p@120fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
  • f/1.8
Performance

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

Performance — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Processor CPU
  • Dual-core 1.2 GHz Cortex-A9
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Mali-400MP4
  • Adreno 405
Antutu 7 score *
  • 9100
  • 40156
GeekBench 4 Single Core *
  • 415
  • 617
GeekBench 4 Multi-Core *
  • 639
  • 1374
GeekBench 4 RenderScript *
  • 346
  • 1404
General specs
General specs — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Release date
  • 2011
  • February. Released 2011
  • April
  • 2015
  • April
Colors
  • Black
  • White
  • Pink
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 260 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)
  • Talking time- Up to 35 h (3G)
Body build
  • plastic body
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
SIM card
  • Mini-SIM
  • Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA
  • LTE Cat4 150/50 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 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 Host
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 - 1.29 W/kg (head)
Music and Audio
Music and Audio — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Radio
  • Stereo FM radio
  • RDS
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy S2, Mi 4i.
SpecificationGalaxy S2Mi 4i
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)