T-Mobile Sidekick 4G vs Vertu Signature Touch

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

    Sidekick 4G: 30 g lighter

    Sidekick 4G:
    162 g
    Signature Touch:
    192 g
  • Width

    Sidekick 4G: 8 mm narrower

    Sidekick 4G:
    61 mm
    Signature Touch:
    69 mm
  • Screen diagonal

    Sidekick 4G: 1.2 in smaller diagonal

    Sidekick 4G:
    3.5 in
    Signature Touch:
    4.7 in
  • Depth

    Signature Touch: 4.3 mm thinner

    Sidekick 4G:
    15 mm
    Signature Touch:
    10.7 mm
  • Height

    Sidekick 4G: 18 mm shorter

    Sidekick 4G:
    127 mm
    Signature Touch:
    145 mm
  • Release year

    Sidekick 4G:
    2011
    Signature Touch:
    2014

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. Sidekick 4G

    Height:
    127 mm
    Width:
    61 mm
    Depth:
    15 mm +4.3 mm versus Signature Touch
  2. 2. Signature Touch

    Height:
    145 mm +18 mm versus Sidekick 4G
    Width:
    69 mm +8 mm versus Sidekick 4G
    Depth:
    10.7 mm

Weight

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

  1. 1. Sidekick 4G

    162 g

  2. 2. Signature Touch

    192 g

    +30 g versus Sidekick 4G

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. Sidekick 4G

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    34.9 cm²
  2. 2. Signature Touch

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

Signature Touch has approximately 74.7% more rectangular screen area than Sidekick 4G.

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 Sidekick 4G, Signature Touch, compared at the same storage capacity.
StorageSidekick 4GSignature Touch
64 GB Unknown 2 GB RAM
Sidekick 4G: Original memory entry

1 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. Sidekick 4G

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

2. Signature Touch

NFC:
Yes
Headphone jack:
Yes
Memory card support:
No

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. Sidekick 4G

    1500 mAh

  2. 2. Signature Touch

    2275 mAh

    +775 mAh versus Sidekick 4G

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. Sidekick 4G2. Signature Touch

Everyday essentials
Everyday essentials — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Dimensions (HxWxD)
  • 127 Х 61 Х 15 mm
  • 145 Х 69 Х 10.7 mm
Weight
  • 162 g
  • 192 g
Technology
  • TFT
  • Sapphire crystal glass
Screen size
  • 3.5" inch
  • 4.7" 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.
  • 1 GB
  • 512 MB RAM
  • 64 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 2275 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.2 (Froyo)
  • Android 4.4.2 (KitKat)
Chipset
  • Hummingbird
  • Qualcomm Snapdragon 801 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 34.9 cm2
  • 60.9 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 45.0%
  • 60.9%
PPI /points per inch/
  • 267 PPI
  • 469 PPI
Screen protection Unknown
  • Scratch-proof glass
Camera and Video
Camera and Video — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 13 MP
  • Hasselblad certified
  • AF
Functions Unknown
  • Dual-LED flash
Video
  • 480p@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2.1 MP
  • Single
Specifications
  • VGA
  • 2.1 MP
Performance

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

Performance — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Processor CPU
  • 1.0 GHz Cortex-A8
  • Quad-core 2.3 GHz Krait 400
Graphics processor GPU
  • PowerVR SGX540
  • Adreno 330
GeekBench 4 Single Core * Unknown
  • 354
GeekBench 4 Multi-Core * Unknown
  • 1174
General specs
General specs — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Release date
  • 2011
  • March
  • 2014
  • June
Colors
  • Matte Black
  • Pearl magenta
  • Jet/ Claret leather
  • pure Jet leather
  • Pure Jet Red Gold
  • Seaspray/ Damson/ Pure navy lizard
  • Jet Alligator
  • Clous De Paris
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 310 EUR
  • 8290 EUR
Battery life
  • Stand by time- Up to 456 h Talking time- Up to 6 h 30 min
  • Stand by time- Up to 380 h Talking time- Up to 15 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
SIM card
  • Mini-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 17(700)
  • 20(800)
  • 25(1900)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • A2DP
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.34 W/kg (head) 0.96 W/kg (body)
  • SAR - 0.69 W/kg (head) 1.29 W/kg (body) SAR EU - 0.49 W/kg (head)
Music and Audio
Music and Audio — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Radio
  • Nо
  • No
Others Unknown
  • Dolby Digital Plus audio enhancement -Bang & Olufsen -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Sidekick 4G, Signature Touch.
SpecificationSidekick 4GSignature Touch
Dop
  • Sensors Accelerometer
  • proximity - T-Mobile TV -MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -ThinkFree Office document editor
  • PDF viewer -Voice memo -Predictive text input - Optical trackpad - Also known as T-Mobile T839 Sidekick 4G
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Titanium body (forged grade 5) and luxurious calf leather covered rear panel - Also known as Vertu Signature Touch RM-980V
  • RM-980C