Xiaomi Redmi 1S vs Xiaomi Redmi S2

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.

  • Weight

    Redmi 1S: 12 g lighter

    Redmi 1S:
    158 g
    Redmi S2:
    170 g
  • Width

    Redmi 1S: 8.3 mm narrower

    Redmi 1S:
    69 mm
    Redmi S2:
    77.3 mm
  • Screen diagonal

    Redmi 1S: 1.29 in smaller diagonal

    Redmi 1S:
    4.7 in
    Redmi S2:
    5.99 in
  • Chipset

    Redmi 1S:
    Qualcomm MSM8228 Snapdragon 400 (28 nm)
    Redmi S2:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Rear camera layout

    Redmi 1S:
    Single
    Redmi S2:
    Dual
  • Depth

    Redmi S2: 1.8 mm thinner

    Redmi 1S:
    9.9 mm
    Redmi S2:
    8.1 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. Redmi 1S

    Height:
    137 mm
    Width:
    69 mm
    Depth:
    9.9 mm +1.8 mm versus Redmi S2
  2. 2. Redmi S2

    Height:
    160.7 mm +23.7 mm versus Redmi 1S
    Width:
    77.3 mm +8.3 mm versus Redmi 1S
    Depth:
    8.1 mm

Weight

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

  1. 1. Redmi 1S

    158 g

  2. 2. Redmi S2

    170 g

    +12 g versus Redmi 1S

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. Redmi 1S

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    60.9 cm²
  2. 2. Redmi S2

    Screen diagonal:
    5.99 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.6 cm²

Redmi S2 has approximately 52% more rectangular screen area than Redmi 1S.

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 Redmi 1S, Redmi S2, compared at the same storage capacity.
StorageRedmi 1SRedmi S2
8 GB 1 GB RAM Unknown
Redmi S2: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 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. Redmi 1S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (dedicated slot)

2. Redmi S2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Redmi 1S

    2000 mAh

  2. 2. Redmi S2

    3080 mAh

    +1080 mAh versus Redmi 1S

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. Redmi 1S2. Redmi S2

Everyday essentials
Everyday essentials — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Dimensions (HxWxD)
  • 137 Х 69 Х 9.9 mm
  • 160.7 Х 77.3 Х 8.1 mm
Weight
  • 158 g
  • 170 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.7" inch
  • 5.99" inch
Screen resolution
  • 720 x 1280 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 3080 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.3 (Jelly Bean)
  • upgradable to 4.4.4 (KitKat); MIUI 9.2
  • Android 8.1 (Oreo); MIUI 10
Chipset
  • Qualcomm MSM8228 Snapdragon 400 (28 nm)
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 92.6 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 64.4%
  • 74.5%
PPI /points per inch/
  • 312 PPI
  • 269 PPI
Screen protection
  • Asahi Dragontrail Glass
Unknown
Camera and Video
Camera and Video — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Rear camera, main
  • 8 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 8 MP
  • f/2.2
  • 1/3.2''
  • 1.4µm
  • AF
  • 12 MP
  • f/2.2
  • 1.25µm
  • PDAF -5 MP
  • depth sensor
Functions
  • LED flash
  • HDR
  • HDR
  • LED flash
Video
  • 720p@30fps
  • 1080p@30fps (gyro-EIS)
Front camera, selfie
  • 1.6 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 1.6 MP
  • 16 MP
Performance

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

Performance — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Processor CPU
  • Quad-core 1.6 GHz Cortex-A7
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 305
  • Adreno 506
Antutu 7 score * Unknown
  • 78926
GeekBench 4 Single Core *
  • 485
  • 835
GeekBench 4 Multi-Core *
  • 1264
  • 4087
GeekBench 4 RenderScript *
  • 2619
Unknown
GeekBench 5 Single Core * Unknown
  • 168
GeekBench 5 Multi-Core * Unknown
  • 985
General specs
General specs — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Release date
  • 2014
  • May
  • 2018
  • May
Colors
  • Black
  • Chinese Red
  • Metallic Gray/ blue
  • Green
  • yellow panels
  • Gray
  • Gold
  • Rose Gold
  • Mesmerising Blue
  • Stunning Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 150 EUR
Body build
  • plastic body
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - China -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) - Global LTE band 1(2100)
  • 40(2300)
  • 41(2500) - India LTE band 1(2100)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China
Speed
  • HSPA
  • 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 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Redmi 1S, Redmi S2.
SpecificationRedmi 1SRedmi S2
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also known as Xiaomi Hongmi 1S
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Charging 5V/2A 10W - Also known as Xiaomi Redmi Y2 in India