HTC U11 vs T-Mobile Sidekick LX

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 LX: 7 g lighter

    U11:
    169 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 15.9 mm narrower

    U11:
    75.9 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 2.5 in smaller diagonal

    U11:
    5.5 in
    Sidekick LX:
    3 in
  • Depth

    U11: 14.1 mm thinner

    U11:
    7.9 mm
    Sidekick LX:
    22 mm
  • Height

    Sidekick LX: 24.4 mm shorter

    U11:
    153.9 mm
    Sidekick LX:
    129.5 mm
  • Release year

    U11:
    2017
    Sidekick LX:
    2007

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. U11

    Height:
    153.9 mm +24.4 mm versus Sidekick LX
    Width:
    75.9 mm +15.9 mm versus Sidekick LX
    Depth:
    7.9 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm
    Width:
    60 mm
    Depth:
    22 mm +14.1 mm versus U11

Weight

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

  1. 1. U11

    169 g

    +7 g versus Sidekick LX

  2. 2. Sidekick LX

    162 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. U11

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

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    25.6 cm²

U11 has approximately 225.5% more rectangular screen area than Sidekick LX.

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.

U11: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

Sidekick LX: Original memory entry

64 MB RAM · 64 MB ROM

Practical features

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

1. U11

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 slot) - dual SIM model only

2. Sidekick LX

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated 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. U11

    3000 mAh

    +1460 mAh versus Sidekick LX

  2. 2. Sidekick LX

    1540 mAh

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. U112. Sidekick LX

Everyday essentials
Everyday essentials — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Dimensions (HxWxD)
  • 153.9 Х 75.9 Х 7.9 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 169 g
  • 162 g
Technology
  • Super LCD5
  • TFT
Screen size
  • 5.5" inch
  • 3" inch
Screen resolution
  • 1440 x 2560 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot) - dual SIM model only
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.1 (Nougat)
  • upgradable to Android 8.0 (Oreo); Sense UI
  • Danger OS
Chipset
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • No
  • No
Display
Display — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 83.4 cm2
  • 25.6 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 71.4%
  • 33.0%
PPI /points per inch/
  • 534 PPI
  • 155 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video

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

Camera and Video — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Rear camera, main
  • 12 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 12 MP
  • f/1.7
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
  • 5-axis OIS
  • 1.3 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0 MP,
Specifications
  • 16 MP
  • f/2.0
Unknown
DxOMark Main Score *
  • 90
Unknown
DxOMark Photo *
  • 90
Unknown
DxOMark Video *
  • 89
Unknown
Performance

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

Performance — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Processor CPU
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
Unknown
Graphics processor GPU
  • Adreno 540
Unknown
Antutu 7 score *
  • 214359
Unknown
GeekBench 4 Single Core *
  • 1913
Unknown
GeekBench 4 Multi-Core *
  • 6333
Unknown
GeekBench 4 RenderScript *
  • 7938
Unknown
GeekBench 5 Single Core *
  • 382
Unknown
GeekBench 5 Multi-Core *
  • 1468
Unknown
General specs
General specs — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Release date
  • 2017
  • May
  • 2007
  • September
Colors
  • Amazing Silver
  • Sapphire Blue
  • Brilliant Black
  • Ice White
  • Solar Red
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 370 EUR
  • 160 EUR
Battery life
  • Stand by time- Up to 336 h (3G) Talking time- Up to 24 h 30 min (3G)
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Body build
  • Front/back glass
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
SIM card
  • Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 32(1500)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (4CA) Cat16 1024/75 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • No
USB
  • 3.1
  • Type-C 1.0 reversible connector
  • Proprietary
Bluetooth
  • 4.2
  • A2DP
  • LE (5.0 after SW update)
  • 2.0
Harmful irradiation Unknown
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Radio
  • No
  • No
Others
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for U11, Sidekick LX.
SpecificationU11Sidekick LX
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging (Quick Charge 3.0) - IP67 dust/water resistant (up to 1m for 30 mins) - Also known as HTC U11 Dual SIM with dual-SIM card slots128GB/6GB (China
  • Taiwan
  • Malaysia
  • Singapore
  • India
  • Hong Kong
  • Russia
  • Saudi Arabia
  • Philippines)
  • MP3/WMA audio player -MP4 player -Voice memo