Oppo Realme U1 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

    Sidekick LX: 6 g lighter

    Realme U1:
    168 g
    Sidekick LX:
    162 g
  • Width

    Sidekick LX: 14 mm narrower

    Realme U1:
    74 mm
    Sidekick LX:
    60 mm
  • Screen diagonal

    Sidekick LX: 3.3 in smaller diagonal

    Realme U1:
    6.3 in
    Sidekick LX:
    3 in
  • Rear camera layout

    Realme U1:
    Dual
    Sidekick LX:
    Single
  • Depth

    Realme U1: 14 mm thinner

    Realme U1:
    8 mm
    Sidekick LX:
    22 mm
  • Height

    Sidekick LX: 27.5 mm shorter

    Realme U1:
    157 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. Realme U1

    Height:
    157 mm +27.5 mm versus Sidekick LX
    Width:
    74 mm +14 mm versus Sidekick LX
    Depth:
    8 mm
  2. 2. Sidekick LX

    Height:
    129.5 mm
    Width:
    60 mm
    Depth:
    22 mm +14 mm versus Realme U1

Weight

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

  1. 1. Realme U1

    168 g

    +6 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. Realme U1

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

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

Realme U1 has approximately 280.3% 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.

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

Realme U1: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM

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. Realme U1

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

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. Realme U1

    3500 mAh

    +1960 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. Realme U12. Sidekick LX

Everyday essentials
Everyday essentials — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Dimensions (HxWxD)
  • 157 Х 74 Х 8 mm
  • 129.5 Х 60 Х 22 mm
Weight
  • 168 g
  • 162 g
Technology
  • LTPS IPS LCD
  • TFT
Screen size
  • 6.3" inch
  • 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.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
  • 64 MB RAM
  • 64 MB ROM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1540 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5.2
  • Danger OS
Chipset
  • Mediatek Helio P70 (12nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 97.4 cm2
  • 25.6 cm2
Screen format
  • 19.5:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 83.9%
  • 33.0%
PPI /points per inch/
  • 409 PPI
  • 155 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Rear camera, main
  • 13 MP
  • Dual
  • 1.3 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • AF -2 MP
  • f/2.4
  • depth sensor
  • 1.3 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 25 MP
  • Single
  • 0 MP,
Specifications
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Unknown
Performance
Performance — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Processor CPU
  • Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Unknown
Graphics processor GPU
  • Mali-G72 MP3
Unknown
General specs
General specs — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Release date
  • 2018
  • November
  • 2007
  • September
Colors
  • Ambitious Black
  • Brave Blue
  • Fiery Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 140 EUR
  • 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 Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick 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 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500)
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • microUSB 2.0
  • USB On-The-Go
  • Proprietary
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR - 0.40 W/kg (head) 0.46 W/kg (body)
Music and Audio
Music and Audio — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Realme U1, Sidekick LX.
SpecificationRealme U1Sidekick LX
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 5V/2A 10W
  • MP3/WMA audio player -MP4 player -Voice memo