Oppo Realme U1 vs Samsung C6620

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

    C6620: 59.2 g lighter

    Realme U1:
    168 g
    C6620:
    108.8 g
  • Width

    C6620: 11 mm narrower

    Realme U1:
    74 mm
    C6620:
    63 mm
  • Screen diagonal

    C6620: 3.7 in smaller diagonal

    Realme U1:
    6.3 in
    C6620:
    2.6 in
  • Rear camera layout

    Realme U1:
    Dual
    C6620:
    Single
  • Depth

    Realme U1: 3.9 mm thinner

    Realme U1:
    8 mm
    C6620:
    11.9 mm
  • Height

    C6620: 43.7 mm shorter

    Realme U1:
    157 mm
    C6620:
    113.3 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 +43.7 mm versus C6620
    Width:
    74 mm +11 mm versus C6620
    Depth:
    8 mm
  2. 2. C6620

    Height:
    113.3 mm
    Width:
    63 mm
    Depth:
    11.9 mm +3.9 mm versus Realme U1

Weight

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

  1. 1. Realme U1

    168 g

    +59.2 g versus C6620

  2. 2. C6620

    108.8 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. C6620

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    20.9 cm²

Realme U1 has approximately 365.4% more rectangular screen area than C6620.

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

C6620: Original memory entry

20 MB

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. C6620

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 8 GB (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

    +2200 mAh versus C6620

  2. 2. C6620

    1300 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. C6620

Everyday essentials
Everyday essentials — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
Dimensions (HxWxD)
  • 157 Х 74 Х 8 mm
  • 113.3 Х 63 Х 11.9 mm
Weight
  • 168 g
  • 108.8 g
Technology
  • LTPS IPS LCD
  • TFT
Screen size
  • 6.3" inch
  • 2.6" inch
Screen resolution
  • 1080 x 2340 px
  • 320 x 240 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
  • 20 MB
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 8 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5.2
  • Microsoft Windows Mobile 6.1 Standard
Chipset
  • Mediatek Helio P70 (12nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 97.4 cm2
  • 20.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 83.9%
  • 29.3%
PPI /points per inch/
  • 409 PPI
  • 154 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
Rear camera, main
  • 13 MP
  • Dual
  • 2 MP
  • Single
Camera specs
  • 13 MP
  • f/2.2
  • AF -2 MP
  • f/2.4
  • depth sensor
  • 2 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 25 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Unknown
Performance
Performance — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
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, C6620.
SpecificationRealme U1C6620
Release date
  • 2018
  • November
  • 2008
  • October
Colors
  • Ambitious Black
  • Brave Blue
  • Fiery Gold
  • Wine red
  • Apple Green
  • Navy Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 140 EUR
  • 90 EUR
Battery life Unknown
  • Stand by time- Up to 300 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
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)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
  • HSPA 3.6/0.384 Mbps
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
  • 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.44 W/kg (head) 0.53 W/kg (body) SAR EU - 0.43 W/kg (head)
Music and Audio
Music and Audio — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Realme U1, C6620.
SpecificationRealme U1C6620
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass - Fast battery charging 5V/2A 10W
  • Pocket Office -Voice memo/dial -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Predictive text input For TIM