T-Mobile Sidekick 4G vs Yezz Epic T

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: 307 g lighter

    Sidekick 4G:
    162 g
    Epic T:
    469 g
  • Width

    Sidekick 4G: 25.5 mm narrower

    Sidekick 4G:
    61 mm
    Epic T:
    86.5 mm
  • Screen diagonal

    Sidekick 4G: 2 in smaller diagonal

    Sidekick 4G:
    3.5 in
    Epic T:
    5.5 in
  • Depth

    Sidekick 4G: 0.9 mm thinner

    Sidekick 4G:
    15 mm
    Epic T:
    15.9 mm
  • Height

    Sidekick 4G: 41.8 mm shorter

    Sidekick 4G:
    127 mm
    Epic T:
    168.8 mm
  • Release year

    Sidekick 4G:
    2011
    Epic T:
    2018

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
  2. 2. Epic T

    Height:
    168.8 mm +41.8 mm versus Sidekick 4G
    Width:
    86.5 mm +25.5 mm versus Sidekick 4G
    Depth:
    15.9 mm +0.9 mm versus Sidekick 4G

Weight

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

  1. 1. Sidekick 4G

    162 g

  2. 2. Epic T

    469 g

    +307 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. Epic T

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

Epic T has approximately 139.2% 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, Epic T, compared at the same storage capacity.
StorageSidekick 4GEpic T
32 GB Unknown 3 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. Epic T

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 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. Sidekick 4G

    1500 mAh

  2. 2. Epic T

    9000 mAh

    +7500 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. Epic T

Everyday essentials
Everyday essentials — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
Dimensions (HxWxD)
  • 127 Х 61 Х 15 mm
  • 168.8 Х 86.5 Х 15.9 mm
Weight
  • 162 g
  • 469 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 5.5" 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.
  • 1 GB
  • 512 MB RAM
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 128 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 9000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 2.2 (Froyo)
  • Android 7.0 (Nougat)
Chipset
  • Hummingbird
  • Mediatek MT6750 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 34.9 cm2
  • 83.4 cm2
Screen format
  • 5:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 45.0%
  • 57.1%
PPI /points per inch/
  • 267 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
Rear camera, main
  • 3.15 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 16 MP
  • AF
Functions Unknown
  • LED flash
  • panorama
  • HDR
Video
  • 480p@30fps
  • 1080p@60fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
Performance

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

Performance — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
Processor CPU
  • 1.0 GHz Cortex-A8
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • PowerVR SGX540
  • Mali-T860MP2
Antutu 7 score * Unknown
  • 38602
General specs
General specs — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
Release date
  • 2011
  • March
  • 2018
  • March
Colors
  • Matte Black
  • Pearl magenta
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 310 EUR
  • 250 EUR
Battery life
  • Stand by time- Up to 456 h Talking time- Up to 6 h 30 min
  • Stand by time- Up to 650 h (3G) Talking time- Up to 30 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1900 / 2100 -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 7(2600)
  • 17(700)
  • 28(700)
Speed
  • HSPA 7.2/5.76 Mbps
  • HSPA 42.2/11.5 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 3.0
  • A2DP
  • 4.0
  • 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, Epic T.
SpecificationSidekick 4GEpic T
Radio
  • Nо
  • FM radio
Other features
Other features — specifications for Sidekick 4G, Epic T.
SpecificationSidekick 4GEpic T
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
  • compass - Fast battery charging - IP68 dust/water proof (up to 1.5m for 30 mins) -MIL-STD-810G compliant -Flashlight