Xiaomi Redmi 1S vs Yezz Billy 4

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

    Billy 4: 49 g lighter

    Redmi 1S:
    158 g
    Billy 4:
    109 g
  • Width

    Billy 4: 4.6 mm narrower

    Redmi 1S:
    69 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 0.7 in smaller diagonal

    Redmi 1S:
    4.7 in
    Billy 4:
    4 in
  • Chipset

    Redmi 1S:
    Qualcomm MSM8228 Snapdragon 400 (28 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Height

    Billy 4: 14.5 mm shorter

    Redmi 1S:
    137 mm
    Billy 4:
    122.5 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 +14.5 mm versus Billy 4
    Width:
    69 mm +4.6 mm versus Billy 4
    Depth:
    9.9 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm

Weight

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

  1. 1. Redmi 1S

    158 g

    +49 g versus Billy 4

  2. 2. Billy 4

    109 g

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. Billy 4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Redmi 1S has approximately 33.7% more rectangular screen area than Billy 4.

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, Billy 4, compared at the same storage capacity.
StorageRedmi 1SBilly 4
8 GB 1 GB RAM Unknown
Billy 4: Original memory entry

4 GB · 512 MB 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. Billy 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

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

    +700 mAh versus Billy 4

  2. 2. Billy 4

    1300 mAh

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. Billy 4

Everyday essentials
Everyday essentials — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Dimensions (HxWxD)
  • 137 Х 69 Х 9.9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 158 g
  • 109 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.7" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.3 (Jelly Bean)
  • upgradable to 4.4.4 (KitKat); MIUI 9.2
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm MSM8228 Snapdragon 400 (28 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 64.4%
  • 57.7%
PPI /points per inch/
  • 312 PPI
  • 233 PPI
Screen protection
  • Asahi Dragontrail Glass
Unknown
Camera and Video
Camera and Video — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • f/2.2
  • 1/3.2''
  • 1.4µm
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • HDR
  • LED flash
Video
  • 720p@30fps
  • 720p@30fps
Front camera, selfie
  • 1.6 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 1.6 MP
  • 1.3 MP
Performance

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

Performance — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Processor CPU
  • Quad-core 1.6 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 305
  • Adreno 302
GeekBench 4 Single Core *
  • 485
Unknown
GeekBench 4 Multi-Core *
  • 1264
Unknown
GeekBench 4 RenderScript *
  • 2619
Unknown
General specs
General specs — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Release date
  • 2014
  • May
  • 2014
  • June
Colors
  • Black
  • Chinese Red
  • Metallic Gray/ blue
  • Green
  • yellow panels
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 350 h (2G) / Up to 300 h (3G) Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G)
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
SIM card
  • Dual SIM (Mini-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Radio
  • FM radio
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Redmi 1S, Billy 4.
SpecificationRedmi 1SBilly 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also known as Xiaomi Hongmi 1S
  • Sensors Accelerometer
  • proximity