Asus ROG Phone 3 vs T-Mobile Sidekick LX

Compare recorded specifications, size and practical differences.

+ Add a third phone

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: 78 g lighter

    ROG Phone 3:
    240 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 18 mm narrower

    ROG Phone 3:
    78 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 3.59 in smaller diagonal

    ROG Phone 3:
    6.59 in
    Sidekick LX:
    3 in
  • Rear camera layout

    ROG Phone 3:
    Triple
    Sidekick LX:
    Single
  • Depth

    ROG Phone 3: 12.1 mm thinner

    ROG Phone 3:
    9.9 mm
    Sidekick LX:
    22 mm
  • Height

    Sidekick LX: 41.5 mm shorter

    ROG Phone 3:
    171 mm
    Sidekick LX:
    129.5 mm

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. ROG Phone 3

    Height:
    171 mm +41.5 mm versus Sidekick LX
    Width:
    78 mm +18 mm versus Sidekick LX
    Depth:
    9.9 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm
    Width:
    60 mm
    Depth:
    22 mm +12.1 mm versus ROG Phone 3

Weight

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

  1. 1. ROG Phone 3

    240 g

    +78 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. ROG Phone 3

    Screen diagonal:
    6.59 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    106.6 cm²
  2. 2. Sidekick LX

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

ROG Phone 3 has approximately 316.2% 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.

Recorded RAM for ROG Phone 3, Sidekick LX, compared at the same storage capacity.
StorageROG Phone 3Sidekick LX
128 GB 12 GB RAM Unknown
256 GB 12 GB RAM Unknown
512 GB 12 / 16 GB RAM Alternative RAM configurations Unknown
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. ROG Phone 3

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

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. ROG Phone 3

    6000 mAh

    +4460 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. ROG Phone 32. Sidekick LX

Everyday essentials
Everyday essentials — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Dimensions (HxWxD)
  • 171 Х 78 Х 9.9 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 240 g
  • 162 g
Technology
  • AMOLED
  • TFT
Screen size
  • 6.59" inc
  • 3" inch
Screen resolution
  • 1080 x 2340 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 12GB RAM
  • 256GB 12GB RAM
  • 512GB 12GB RAM
  • 512GB 16GB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • No
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 6000 mAh
  • Non-removable Li-Po
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 10
  • ROG UI
  • Danger OS
Chipset
  • - Qualcomm SM8250 Snapdragon 865+ (7 nm+)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • No
  • No
Display
Display — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 1B
  • 65K
Screen area
  • 106.6 cm2
  • 25.6 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 79.9%
  • 33.0%
PPI /points per inch/ Unknown
  • 155 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video
Camera and Video — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Rear camera, main
  • 64 MP
  • Triple
  • 1.3 MP
  • Single
Camera specs
  • -64 MP
  • f/1.8
  • (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF -13 MP
  • f/2.4
  • 125˚
  • 11mm (ultrawide) -5 MP
  • f/2.0
  • (macro)
  • 1.3 MP
Functions
  • panorama
  • HDR
Unknown
Video
  • 8K@30fps
  • 4K@30/60/120fps
  • 1080p@30/60/240fps
  • 720p@480fps; gyro-EIS
  • Yes
Front camera, selfie
  • 24 MP
  • Single
  • 0 MP,
Specifications
  • 24 MP
  • f/2.0
  • 27mm (wide)
  • 0.9μm
Unknown
Performance

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

Performance — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Processor CPU
  • - Octa-core (1x3.1 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
Unknown
Graphics processor GPU
  • - Adreno 650
Unknown
Antutu 8 score *
  • 632274
Unknown
General specs
General specs — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Release date
  • 2020
  • July 22
  • 2007
  • September
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 1000 EUR
  • 160 EUR
Battery life Unknown
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Body build
  • Glass front (Gorilla Glass 6)
  • glass back (Gorilla Glass)
  • aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2CDMA 800 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - A versionHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - B version -4G - 1
  • 2
  • 3
  • 4
  • 5
  • 7
  • 8
  • 12
  • 13
  • 17
  • 18
  • 19
  • 20
  • 25
  • 26
  • 28
  • 29
  • 30
  • 32
  • 34
  • 38
  • 39
  • 40
  • 41
  • 42
  • 48
  • 66
  • 71 - A version -5G - 1
  • 71
  • 77
  • 78
  • 79 SA/NSA - A version 41
  • 79 SA/NSA - B version
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (6CA) Cat20 2000/150 Mbps
  • 5G 4.4 Gbps DL
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/6
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • No
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • GNSS
  • No
USB
  • Two (side 3.1
  • bottom 2.0) Type-C 1.0 reversible connector; accessory connector
  • Proprietary
Bluetooth
  • 5.1
  • A2DP
  • LE
  • aptX HD
  • aptX Adaptive
  • 2.0
Harmful irradiation Unknown
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Radio Unknown
  • No
Others
  • - HDR10+ -144Hz refresh rate -650 nits max. brightness
  • - 24-bit/192kHz audio
Unknown
Other features
Other features — specifications for ROG Phone 3, Sidekick LX.
SpecificationROG Phone 3Sidekick LX
Dop
  • - Sensors - Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 30W -Quick Charge 4.0
  • 3.0 -Reverse charging 10W - RGB light panel -Pressure sensitive zones
  • MP3/WMA audio player -MP4 player -Voice memo