Siemens SX1 vs Xiaomi Redmi 4a

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    SX1: 15.5 g lighter

    SX1:
    116 g
    Redmi 4a:
    131.5 g
  • Width

    SX1: 14.4 mm narrower

    SX1:
    56 mm
    Redmi 4a:
    70.4 mm
  • Screen diagonal

    SX1: 2.8 in smaller diagonal

    SX1:
    2.2 in
    Redmi 4a:
    5 in
  • Chipset

    SX1:
    TI OMAP 310
    Redmi 4a:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Depth

    Redmi 4a: 10.5 mm thinner

    SX1:
    19 mm
    Redmi 4a:
    8.5 mm
  • Height

    SX1: 30.9 mm shorter

    SX1:
    109 mm
    Redmi 4a:
    139.9 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. SX1

    Height:
    109 mm
    Width:
    56 mm
    Depth:
    19 mm +10.5 mm versus Redmi 4a
  2. 2. Redmi 4a

    Height:
    139.9 mm +30.9 mm versus SX1
    Width:
    70.4 mm +14.4 mm versus SX1
    Depth:
    8.5 mm

Weight

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

  1. 1. SX1

    116 g

  2. 2. Redmi 4a

    131.5 g

    +15.5 g versus SX1

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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. SX1

    SX1: Screen geometry unavailable or conflicting.

  2. 2. Redmi 4a

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

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 SX1, Redmi 4a, compared at the same storage capacity.
StorageSX1Redmi 4a
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB RAM
SX1: Original memory entry

16 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. SX1

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC

2. Redmi 4a

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. SX1

    1000 mAh

  2. 2. Redmi 4a

    3120 mAh

    +2120 mAh versus SX1

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. SX12. Redmi 4a

Everyday essentials
Everyday essentials — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Dimensions (HxWxD)
  • 109 Х 56 Х 19 mm
  • 139.9 Х 70.4 Х 8.5 mm
Weight
  • 116 g
  • 131.5 g
Technology
  • TFD
  • IPS LCD
Screen size
  • 2.2" inch
  • 5" inch
Screen resolution
  • 176 x 220 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 MB
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • MMC
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1000 mAh
  • Removable Li-Ion
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Symbian 6.1
  • Series 60 v1.0 UI
  • Android 6.0.1 (Marshmallow); MIUI 10
Chipset
  • TI OMAP 310
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 15.2 cm2
  • 68.0 cm2
Screen format Unknown
  • 16:9 (height:width)
Screen to body ratio
  • 25.0%
  • 69.0%
PPI /points per inch/
  • 0 PPI
  • 296 PPI
Camera and Video
Camera and Video — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Rear camera, main
  • 0.3 MP
  • Single
  • 13 MP
  • Single
Camera specs Unknown
  • 13 MP
  • AF
  • f/2.2
Functions Unknown
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Processor CPU
  • 120 MHz ARM9
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU Unknown
  • Adreno 308
Antutu 7 score * Unknown
  • 43152
GeekBench 4 Single Core * Unknown
  • 664
GeekBench 4 Multi-Core * Unknown
  • 1740
GeekBench 4 RenderScript * Unknown
  • 1350
GeekBench 5 Single Core * Unknown
  • 123
GeekBench 5 Multi-Core * Unknown
  • 396
General specs
General specs — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Release date
  • 2003
  • Q3
  • 2016
  • November
Colors
  • Ice Blue
  • Gold
  • Rose Gold
  • Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 110 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 20(800)
  • 38(2600)
  • 40(2300)
Speed Unknown
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • 1.1
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Radio
  • FM radio
  • FM radio
Others
  • Unique keypad arrangement
  • Loud speaker
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for SX1, Redmi 4a.
SpecificationSX1Redmi 4a
Dop
  • Infrared port - MP3 player/recorder -Predictive text input -Organizer -User profiles -SyncML
  • Sensors Accelerometer
  • gyro
  • proximity
  • Infrared port