Plum Sync 4.0b vs Xiaomi Mi 4s

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

    Sync 4.0b: 48.2 g lighter

    Sync 4.0b:
    84.8 g
    Mi 4s:
    133 g
  • Width

    Sync 4.0b: 7.3 mm narrower

    Sync 4.0b:
    63.5 mm
    Mi 4s:
    70.8 mm
  • Screen diagonal

    Sync 4.0b: 1 in smaller diagonal

    Sync 4.0b:
    4 in
    Mi 4s:
    5 in
  • Chipset

    Sync 4.0b:
    Mediatek MT6572 (28 nm)
    Mi 4s:
    Qualcomm MSM8992 Snapdragon 808 (20 nm)
  • Depth

    Mi 4s: 2.6 mm thinner

    Sync 4.0b:
    10.4 mm
    Mi 4s:
    7.8 mm
  • Height

    Sync 4.0b: 14.8 mm shorter

    Sync 4.0b:
    124.5 mm
    Mi 4s:
    139.3 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. Sync 4.0b

    Height:
    124.5 mm
    Width:
    63.5 mm
    Depth:
    10.4 mm +2.6 mm versus Mi 4s
  2. 2. Mi 4s

    Height:
    139.3 mm +14.8 mm versus Sync 4.0b
    Width:
    70.8 mm +7.3 mm versus Sync 4.0b
    Depth:
    7.8 mm

Weight

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

  1. 1. Sync 4.0b

    84.8 g

  2. 2. Mi 4s

    133 g

    +48.2 g versus Sync 4.0b

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. Sync 4.0b

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

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

Mi 4s has approximately 51.3% more rectangular screen area than Sync 4.0b.

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 Sync 4.0b, Mi 4s, compared at the same storage capacity.
StorageSync 4.0bMi 4s
64 GB Unknown 3 GB RAM
Sync 4.0b: Original memory entry

512 MB · 256 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. Sync 4.0b

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

2. Mi 4s

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. Sync 4.0b

    1300 mAh

  2. 2. Mi 4s

    3260 mAh

    +1960 mAh versus Sync 4.0b

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. Sync 4.0b2. Mi 4s

Everyday essentials
Everyday essentials — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Dimensions (HxWxD)
  • 124.5 Х 63.5 Х 10.4 mm
  • 139.3 Х 70.8 Х 7.8 mm
Weight
  • 84.8 g
  • 133 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" 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.
  • 512 MB
  • 256 MB RAM
  • 64 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 3260 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.4 (KitKat)
  • Android 5.1 (Lollipop)
  • upgradable to 7.0 (Nougat); MIUI 10
Chipset
  • Mediatek MT6572 (28 nm)
  • Qualcomm MSM8992 Snapdragon 808 (20 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 45.5 cm2
  • 68.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 57.6%
  • 69.9%
PPI /points per inch/
  • 233 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Rear camera, main
  • 1.3 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 1.3 MP
  • 13 MP
  • PDAF
  • f/2.0
Functions Unknown
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 1.3 MP
  • 5 MP
  • f/2.0
Performance

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

Performance — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Processor CPU
  • Dual-core 1.0 GHz Cortex-A7
  • Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)
Graphics processor GPU
  • Mali-400
  • Adreno 418
Antutu 7 score * Unknown
  • 61393
GeekBench 4 Single Core * Unknown
  • 946
GeekBench 4 Multi-Core * Unknown
  • 1948
GeekBench 4 RenderScript * Unknown
  • 2422
GeekBench 5 Single Core * Unknown
  • 175
GeekBench 5 Multi-Core * Unknown
  • 431
General specs
General specs — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Release date
  • 2015
  • June
  • 2016
  • February
Colors
  • Black
  • White
  • Red
  • Blue
  • Black
  • White
  • Gold
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 220 EUR
Battery life
  • Stand by time- Up to 180 h Talking time- Up to 2 h 30 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • No
  • 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
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • 4.1
  • A2DP
Music and Audio
Music and Audio — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Sync 4.0b, Mi 4s.
SpecificationSync 4.0bMi 4s
Dop
  • Sensors Accelerometer Flashlight Also known as Plum Sync 4.0b X400
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging: 40% in 60 min (Quick Charge 2.0)