T-Mobile Sidekick 4G vs YU Yutopia

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.

  • Width

    Sidekick 4G: 11.7 mm narrower

    Sidekick 4G:
    61 mm
    Yutopia:
    72.7 mm
  • Screen diagonal

    Sidekick 4G: 1.7 in smaller diagonal

    Sidekick 4G:
    3.5 in
    Yutopia:
    5.2 in
  • Depth

    Yutopia: 7.8 mm thinner

    Sidekick 4G:
    15 mm
    Yutopia:
    7.2 mm
  • Height

    Sidekick 4G: 19.6 mm shorter

    Sidekick 4G:
    127 mm
    Yutopia:
    146.6 mm
  • Release year

    Sidekick 4G:
    2011
    Yutopia:
    2015

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 +7.8 mm versus Yutopia
  2. 2. Yutopia

    Height:
    146.6 mm +19.6 mm versus Sidekick 4G
    Width:
    72.7 mm +11.7 mm versus Sidekick 4G
    Depth:
    7.2 mm

Weight

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

  1. 1. Sidekick 4G

    162 g

    +3 g versus Yutopia

  2. 2. Yutopia

    159 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. Sidekick 4G

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

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

Yutopia has approximately 113.8% 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.

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

Sidekick 4G: Original memory entry

1 GB · 512 MB RAM

Yutopia: Original memory entry

32 GB · 512GB 4GB

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. Yutopia

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. Sidekick 4G

    1500 mAh

  2. 2. Yutopia

    3000 mAh

    +1500 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. Yutopia

Everyday essentials
Everyday essentials — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Dimensions (HxWxD)
  • 127 Х 61 Х 15 mm
  • 146.6 Х 72.7 Х 7.2 mm
Weight
  • 162 g
  • 159 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 5.2" inch
Screen resolution
  • 480 x 800 px
  • 1440 x 2560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 1 GB
  • 512 MB RAM
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 5.1.1 (Lollipop)
  • Cyanogen 12.1
Chipset
  • Hummingbird
  • Qualcomm MSM8994 Snapdragon 810 (20 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 34.9 cm2
  • 74.5 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 45.0%
  • 69.9%
PPI /points per inch/
  • 267 PPI
  • 565 PPI
Screen protection Unknown
  • Corning Concore Glass
Camera and Video
Camera and Video — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Rear camera, main
  • 3.15 MP
  • Single
  • 21 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 21 MP
  • f/2.2
  • 27mm (wide)
  • 1/2.4''
  • 1.12µm
  • OIS
  • PDAF
Functions Unknown
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • 480p@30fps
  • 2160p@30fps
  • 720p@120fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.2
  • 1/3.2''
  • 1.4µm
Performance
Performance — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Processor CPU
  • 1.0 GHz Cortex-A8
  • Octa-core (4x2.0 GHz Cortex A57 & 4x1.5 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX540
  • Adreno 430
General specs
General specs — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Release date
  • 2011
  • March
  • 2015
  • December
Colors
  • Matte Black
  • Pearl magenta
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 310 EUR
  • 420 EUR
Battery life
  • Stand by time- Up to 456 h Talking time- Up to 6 h 30 min
  • Stand by time- Up to 300 h (3G) Talking time- Up to 8 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Micro-SIM/Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 7(2600)
  • 20(800)
  • 40(2300)
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
  • 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
  • 4.1
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.34 W/kg (head) 0.96 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
Radio
  • Nо
  • FM radio
Others Unknown
  • DTS sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Sidekick 4G, Yutopia.
SpecificationSidekick 4GYutopia
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 Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • barometer
  • compass - Fast battery charging (Quick Charge 2.0) - Also known as YU Yutopia YU5050