Vertu Signature Touch (2015) vs Xiaomi Redmi Note 4

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 Note 4: 60 g lighter

    Signature Touch (2015):
    225 g
    Redmi Note 4:
    165 g
  • Width

    Signature Touch (2015): 2 mm narrower

    Signature Touch (2015):
    74 mm
    Redmi Note 4:
    76 mm
  • Screen diagonal

    Signature Touch (2015): 0.3 in smaller diagonal

    Signature Touch (2015):
    5.2 in
    Redmi Note 4:
    5.5 in
  • Chipset

    Signature Touch (2015):
    Qualcomm MSM8994 Snapdragon 810 (20 nm)
    Redmi Note 4:
    Qualcomm MSM8953 Snapdragon 625 (14 nm)
  • Depth

    Redmi Note 4: 2.3 mm thinner

    Signature Touch (2015):
    10.8 mm
    Redmi Note 4:
    8.5 mm
  • Height

    Redmi Note 4: 4 mm shorter

    Signature Touch (2015):
    155 mm
    Redmi Note 4:
    151 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. Signature Touch (2015)

    Height:
    155 mm +4 mm versus Redmi Note 4
    Width:
    74 mm
    Depth:
    10.8 mm +2.3 mm versus Redmi Note 4
  2. 2. Redmi Note 4

    Height:
    151 mm
    Width:
    76 mm +2 mm versus Signature Touch (2015)
    Depth:
    8.5 mm

Weight

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

  1. 1. Signature Touch (2015)

    225 g

    +60 g versus Redmi Note 4

  2. 2. Redmi Note 4

    165 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. Signature Touch (2015)

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. Redmi Note 4

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

Redmi Note 4 has approximately 11.9% more rectangular screen area than Signature Touch (2015).

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Signature Touch (2015): Original memory entry

64 GB · 512GB 4GB

Redmi Note 4: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM; 64 GB · 3 GB RAM (China only)

Practical features

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

1. Signature Touch (2015)

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. Redmi Note 4

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. Signature Touch (2015)

    3160 mAh

  2. 2. Redmi Note 4

    4100 mAh

    +940 mAh versus Signature Touch (2015)

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. Signature Touch (2015)2. Redmi Note 4

Everyday essentials
Everyday essentials — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Dimensions (HxWxD)
  • 155 Х 74 Х 10.8 mm
  • 151 Х 76 Х 8.5 mm
Weight
  • 225 g
  • 165 g
Technology
  • Sapphire crystal glass
  • IPS LCD
Screen size
  • 5.2" inch
  • 5.5" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 512GB 4GB
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM; 64 GB
  • 3 GB RAM (China only)
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3160 mAh
  • Non-removable Li-Ion
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.1 (Lollipop)
  • Android 6.0 (Marshmallow)
  • upgradable to 7.0 (Nougat); MIUI 10
Chipset
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
  • Qualcomm MSM8953 Snapdragon 625 (14 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 74.5 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 65.0%
  • 72.7%
PPI /points per inch/
  • 424 PPI
  • 401 PPI
Screen protection
  • Sapphire crystal glass
Unknown
Camera and Video
Camera and Video — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Rear camera, main
  • 21 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 21 MP
  • PDAF
  • 13 MP
  • f/2.0
  • 1.12µm
  • PDAF
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 2.1 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2.1 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 Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Processor CPU
  • Octa-core (4x1.56 GHz Cortex-A53 & 4x1.82 GHz Cortex-A57)
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 430
  • Adreno 506
Antutu 7 score * Unknown
  • 76000
GeekBench 4 Single Core * Unknown
  • 1475
GeekBench 4 Multi-Core * Unknown
  • 4010
GeekBench 4 RenderScript * Unknown
  • 3151
Antutu 8 score * Unknown
  • 102376
GeekBench 5 Single Core * Unknown
  • 171
GeekBench 5 Multi-Core * Unknown
  • 917
General specs
General specs — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Release date
  • 2015
  • September
  • 2017
  • January
Colors
  • Jet Calf
  • Garnet Calf
  • Grape Lizard
  • Pure Jet Lizard
  • Jet Alligator
  • Pure Navy Alligator
  • Clous de Paris Alligator
  • Pure Jet Red Gold
  • Dark Gray
  • Gold
  • Black
  • Lake Blue (64/4GB model)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 9000 EUR
  • 150 EUR
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
SIM card
  • Micro-SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 TD-SCDMA -4G - LTE band 1(2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 13(700)
  • 17(700)
  • 20(800)
  • 25(1900)
  • 28(700)
  • 29(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 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)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • 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 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0 (MHL)
  • USB Host
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • LE
  • aptX
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Radio
  • No
  • FM radio
Others
  • Dolby Digital Plus audio enhancement -Active noise cancellation with dedicated mic
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Signature Touch (2015), Redmi Note 4.
SpecificationSignature Touch (2015)Redmi Note 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 2.0) -Qi wireless charging - Titanium body (forged grade 5) and luxurious calf leather covered rear panel
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - For Global market. Also known as Xiaomi Redmi Note 4x Global.