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HTC First vs T-Mobile Sidekick 4G

Compare recorded specifications, size and practical differences.

HTC First

HTC First

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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.

  • WeightFirst: 38.1 g lighterFirst: 123.9 g · Sidekick 4G: 162 g
  • WidthSidekick 4G: 4 mm narrowerSidekick 4G: 61 mm · First: 65 mm
  • Screen diagonalSidekick 4G: 0.8 in smaller diagonalSidekick 4G: 3.5 in · First: 4.3 in
  • DepthFirst: 6.1 mm thinnerFirst: 8.9 mm · Sidekick 4G: 15 mm
  • Release year2013 / 2011First: 2013 · Sidekick 4G: 2011

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.

Front
First: 126 × 65 mm 1 Sidekick 4G: 127 × 61 mm 2
Side
First: 126 × 8.9 mm 1 Sidekick 4G: 127 × 15 mm 2
  1. 1. First
    Height
    126 mm
    Width
    65 mm+4 mm versus Sidekick 4G
    Depth
    8.9 mm
    Weight
    123.9 g
  2. 2. Sidekick 4G
    Height
    127 mm
    Width
    61 mm
    Depth
    15 mm+6.1 mm versus First
    Weight
    162 g
Weight

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

  1. 1. First123.9 g
  2. 2. Sidekick 4G162 g

    +38.1 g versus First

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.

Screen size
First: 4.3 in, 16:9, About 51 cm² rectangular area 1 Sidekick 4G: 3.5 in, 5:3, About 34.9 cm² rectangular area 2
  1. 1. First 4.3 in · 16:9 About 51 cm² rectangular area
  2. 2. Sidekick 4G 3.5 in · 5:3 About 34.9 cm² rectangular area

First has approximately 46.2% more rectangular screen area than Sidekick 4G.

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 by storage capacity and phone
StorageFirstSidekick 4G
16 GB 1 GB RAM Unknown
Sidekick 4G: Original memory entry

1 GB · 512 MB RAM

Practical features

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

1. First

NFC
Yes
Headphone jack
Yes
Memory card support
No

2. Sidekick 4G

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

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

  1. 1. First2000 mAh

    +500 mAh versus Sidekick 4G

  2. 2. Sidekick 4G1500 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. First2. Sidekick 4G

Everyday essentials
Everyday essentials
SpecificationFirstSidekick 4G
Dimensions (HxWxD)
  • 126 Х 65 Х 8.9 mm
  • 127 Х 61 Х 15 mm
Weight
  • 123.9 g
  • 162 g
Technology
  • Super LCD
  • TFT
Screen size
  • 4.3" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 1 GB RAM
  • 1 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
BatteryCapacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Non-removable Li-Po
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.1 (Jelly Bean); Facebook Home UI
  • Android 2.2 (Froyo)
Chipset
  • Qualcomm MSM8930 Snapdragon 400 (28 nm)
  • Hummingbird
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display
SpecificationFirstSidekick 4G
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 51.0 cm2
  • 34.9 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 62.2%
  • 45.0%
PPI /points per inch/
  • 342 PPI
  • 267 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video
SpecificationFirstSidekick 4G
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 3.15 MP
  • AF
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • 480p@30fps
Front camera, selfie
  • 1.6 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 1.6 MP
  • VGA
Performance
Performance
SpecificationFirstSidekick 4G
Processor CPU
  • Dual-core 1.4 GHz Krait
  • 1.0 GHz Cortex-A8
Graphics processor GPU
  • Adreno 305
  • PowerVR SGX540
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 18456
Unknown
General specs
General specs
SpecificationFirstSidekick 4G
Release date
  • 2013
  • April
  • 2011
  • March
Colors
  • White
  • Black
  • Red
  • Pale Blue
  • Matte Black
  • Pearl magenta
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 310 EUR
Battery life
  • Stand by time- Up to 432 h Talking time- Up to 14 h 20 min
  • Stand by time- Up to 456 h Talking time- Up to 6 h 30 min
Communication and Connectivity
Communication and Connectivity
SpecificationFirstSidekick 4G
SIM card
  • Micro-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 - AT&T -4G - LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 17(700) - AT&T
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA
  • HSPA 7.2/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 3.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.34 W/kg (head) 0.96 W/kg (body)
Music and Audio
Music and Audio
SpecificationFirstSidekick 4G
Radio
  • FM radio
  • Nо
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features
SpecificationFirstSidekick 4G
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity - T-Mobile TV -MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -ThinkFree Office document editor
  • PDF viewer -Voice memo -Predictive text input - Optical trackpad - Also known as T-Mobile T839 Sidekick 4G

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