Asus Zenfone Go ZB551KL vs T-Mobile Sidekick

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: 32 g lighter

    Zenfone Go ZB551KL:
    160 g
    Sidekick:
    128 g
  • Width

    Sidekick: 18.9 mm narrower

    Zenfone Go ZB551KL:
    76.9 mm
    Sidekick:
    58 mm
  • Screen diagonal

    Sidekick: 2.9 in smaller diagonal

    Zenfone Go ZB551KL:
    5.5 in
    Sidekick:
    2.6 in
  • Depth

    Zenfone Go ZB551KL: 7.3 mm thinner

    Zenfone Go ZB551KL:
    10.7 mm
    Sidekick:
    18 mm
  • Height

    Sidekick: 32 mm shorter

    Zenfone Go ZB551KL:
    151 mm
    Sidekick:
    119 mm
  • Release year

    Zenfone Go ZB551KL:
    2016
    Sidekick:
    2008

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. Zenfone Go ZB551KL

    Height:
    151 mm +32 mm versus Sidekick
    Width:
    76.9 mm +18.9 mm versus Sidekick
    Depth:
    10.7 mm
  2. 2. Sidekick

    Height:
    119 mm
    Width:
    58 mm
    Depth:
    18 mm +7.3 mm versus Zenfone Go ZB551KL

Weight

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

  1. 1. Zenfone Go ZB551KL

    160 g

    +32 g versus Sidekick

  2. 2. Sidekick

    128 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. Zenfone Go ZB551KL

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

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

Zenfone Go ZB551KL has approximately 333.4% more rectangular screen area than Sidekick.

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 Zenfone Go ZB551KL, Sidekick, compared at the same storage capacity.
StorageZenfone Go ZB551KLSidekick
16 GB 2 GB RAM Unknown
32 GB 2 GB RAM Unknown
Sidekick: Original memory entry

128 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. Zenfone Go ZB551KL

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (dedicated slot)

2. Sidekick

NFC:
Unknown
Headphone jack:
Yes
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. Zenfone Go ZB551KL

    3010 mAh

    +1980 mAh versus Sidekick

  2. 2. Sidekick

    1030 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. Zenfone Go ZB551KL2. Sidekick

Everyday essentials
Everyday essentials — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Dimensions (HxWxD)
  • 151 Х 76.9 Х 10.7 mm
  • 119 Х 58 Х 18 mm
Weight
  • 160 g
  • 128 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 2.6" inch
Screen resolution
  • 720 x 1280 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2 GB RAM
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3010 mAh
  • Removable Li-Ion
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Danger 4.7
Chipset
  • Qualcomm MSM8928 Snapdragon 400 (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 83.4 cm2
  • 19.2 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 71.8%
  • 27.9%
PPI /points per inch/
  • 267 PPI
  • 179 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Rear camera, main
  • 8 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 8 MP or 13 MP
  • AF
  • f/2.0
  • 1.3 MP
Functions
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0 MP,
Specifications
  • 5 MP
  • f/2.0
Unknown
Performance

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

Performance — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Processor CPU
  • Quad-core 1.6 GHz Cortex-A7
Unknown
Graphics processor GPU
  • Adreno 305
Unknown
Antutu 7 score *
  • 23458
Unknown
General specs
General specs — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Release date
  • 2016
  • April
  • 2008
  • July
Colors
  • Charcoal Black
  • Pearl White
  • Lake Blue
  • Glacier Gray
  • Sheer Gold
  • Glamour Red
  • Floral Pink
  • Silver Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
Unknown
Battery life
  • Stand by time- Up to 335 h (3G) Talking time- Up to 16 h (3G)
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - Global LTE band 1(2100)
  • 5(850) - India
Unknown
Speed
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • No
USB
  • microUSB 2.0
  • miniUSB
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 2.0
  • A2DP
Music and Audio
Music and Audio — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Radio
  • FM radio
  • No
Others Unknown
  • Swivel display
Other features
Other features — specifications for Zenfone Go ZB551KL, Sidekick.
SpecificationZenfone Go ZB551KLSidekick
Dop
  • Sensors Accelerometer
  • proximity
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input