Nokia Asha 503 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

    Asha 503: 17.8 g lighter

    Asha 503:
    110.2 g
    Sidekick:
    128 g
  • Width

    Sidekick: 2.6 mm narrower

    Asha 503:
    60.6 mm
    Sidekick:
    58 mm
  • Screen diagonal

    Sidekick: 0.4 in smaller diagonal

    Asha 503:
    3 in
    Sidekick:
    2.6 in
  • Depth

    Asha 503: 5.3 mm thinner

    Asha 503:
    12.7 mm
    Sidekick:
    18 mm
  • Height

    Asha 503: 16.4 mm shorter

    Asha 503:
    102.6 mm
    Sidekick:
    119 mm
  • Release year

    Asha 503:
    2013
    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. Asha 503

    Height:
    102.6 mm
    Width:
    60.6 mm +2.6 mm versus Sidekick
    Depth:
    12.7 mm
  2. 2. Sidekick

    Height:
    119 mm +16.4 mm versus Asha 503
    Width:
    58 mm
    Depth:
    18 mm +5.3 mm versus Asha 503

Weight

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

  1. 1. Asha 503

    110.2 g

  2. 2. Sidekick

    128 g

    +17.8 g versus Asha 503

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. Asha 503

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    27.9 cm²
  2. 2. Sidekick

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

Asha 503 has approximately 44.9% 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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

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. Asha 503

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 4 GB card included

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. Asha 503

    1200 mAh

    +170 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. Asha 5032. Sidekick

Everyday essentials
Everyday essentials — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Dimensions (HxWxD)
  • 102.6 Х 60.6 Х 12.7 mm
  • 119 Х 58 Х 18 mm
Weight
  • 110.2 g
  • 128 g
Technology
  • TFT
  • TFT
Screen size
  • 3" inch
  • 2.6" inch
Screen resolution
  • 240 x 320 px
  • 240 x 400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 4 GB card included
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1200 mAh
  • Removable Li-Ion
  • 1030 mAh
  • Removable Li-Ion
Operating system OS
  • Nokia Asha software platform 1.2
  • Danger 4.7
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 256K
  • 65K
Screen area
  • 27.9 cm2
  • 19.2 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 44.8%
  • 27.9%
PPI /points per inch/
  • 133 PPI
  • 179 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Rear camera, main
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 5 MP
  • 1.3 MP
Functions
  • LED flash
Unknown
Video
  • 480p@19fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
General specs
General specs — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Release date
  • 2013
  • October
  • 2008
  • July
Colors
  • Yellow
  • Black
  • Green
  • Red
  • Blue
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
Unknown
Battery life
  • Stand by time- Up to 840 h (2G) / Up to 840 h (3G) Talking time- Up to 12 h (2G) / Up to 4 h 30 min (3G) Music play - Up to 34 h
  • Stand by time- Up to 216 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
SIM card
  • Micro-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 7.2/5.76 Mbps
Unknown
GPRS
  • Up to 85.6 kbps
  • Class 10
Edge
  • Up to 236.8 kbps
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • No
GPS
  • No
  • No
USB
  • microUSB 2.0
  • miniUSB
Bluetooth
  • 3.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR EU - 1.43 W/kg (head) 0.64 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Radio
  • Stereo FM radio
  • No
Others Unknown
  • Swivel display
Other features
Other features — specifications for Asha 503, Sidekick.
SpecificationAsha 503Sidekick
Dop
  • Sensors Accelerometer
  • proximity - SNS apps -MP4/H.263 player -MP3/AAC player -Photo editor -Organizer -Voice memo -Predictive text input
  • MP3/WAV/WMA audio player -MP4 player -Voice memo -Predictive text input