Panasonic P99 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

    P99: 17 g lighter

    P99:
    145 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 11.8 mm narrower

    P99:
    71.8 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 2 in smaller diagonal

    P99:
    5 in
    Sidekick LX:
    3 in
  • Depth

    P99: 13.4 mm thinner

    P99:
    8.6 mm
    Sidekick LX:
    22 mm
  • Height

    Sidekick LX: 15.1 mm shorter

    P99:
    144.6 mm
    Sidekick LX:
    129.5 mm
  • Release year

    P99:
    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. P99

    Height:
    144.6 mm +15.1 mm versus Sidekick LX
    Width:
    71.8 mm +11.8 mm versus Sidekick LX
    Depth:
    8.6 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm
    Width:
    60 mm
    Depth:
    22 mm +13.4 mm versus P99

Weight

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

  1. 1. P99

    145 g

  2. 2. Sidekick LX

    162 g

    +17 g versus P99

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. P99

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

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

P99 has approximately 169% 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 P99, Sidekick LX, compared at the same storage capacity.
StorageP99Sidekick LX
16 GB 2 GB RAM 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. P99

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB

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. P99

    2000 mAh

    +460 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. P992. Sidekick LX

Everyday essentials
Everyday essentials — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Dimensions (HxWxD)
  • 144.6 Х 71.8 Х 8.6 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 145 g
  • 162 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" inch
  • 3" 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 GB
  • 2 GB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 128 GB
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Non-removable Li-Ion
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Danger OS
Headphone jack
  • Yes
  • No
Display
Display — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 68.9 cm2
  • 25.6 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 66.4%
  • 33.0%
PPI /points per inch/
  • 294 PPI
  • 155 PPI
Camera and Video
Camera and Video — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Rear camera, main
  • 8 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 1.3 MP
Functions
  • LED flash
  • HDR
  • panorama
Unknown
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0 MP,
Specifications
  • 5 MP
Unknown
Performance

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

Performance — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Processor CPU
  • Quad-core 1.25 GHz
Unknown
Antutu 7 score *
  • 31362
Unknown
General specs
General specs — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Release date
  • 2017
  • September
  • 2007
  • September
Colors
  • Champagne Gold
  • Black
  • Blue
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 7450 INR
  • 160 EUR
Battery life Unknown
  • Stand by time- Up to 96 h Talking time- Up to 6 h 50 min
Communication and Connectivity
Communication and Connectivity — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
SIM card
  • Dual SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
Unknown
Speed
  • HSPA
  • 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
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Harmful irradiation Unknown
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Radio
  • FM radio
  • No
Other features
Other features — specifications for P99, Sidekick LX.
SpecificationP99Sidekick LX
Dop
  • Sensors Accelerometer
  • proximity
  • Infrared port - For India
  • MP3/WMA audio player -MP4 player -Voice memo