Oppo K1 vs Oppo Realme C2s

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.

  • Display technology

    OLED versus LCD

    K1:
    OLED
    Realme C2s:
    LCD
  • Weight

    K1: 10 g lighter

    K1:
    156 g
    Realme C2s:
    166 g
  • Width

    Realme C2s: 1.8 mm narrower

    K1:
    75.5 mm
    Realme C2s:
    73.7 mm
  • Screen diagonal

    Realme C2s: 0.3 in smaller diagonal

    K1:
    6.4 in
    Realme C2s:
    6.1 in
  • Chipset

    K1:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Realme C2s:
    Mediatek MT6762 Helio P22 (12 nm)
  • Depth

    K1: 1.1 mm thinner

    K1:
    7.4 mm
    Realme C2s:
    8.5 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. K1

    Height:
    158.3 mm +4 mm versus Realme C2s
    Width:
    75.5 mm +1.8 mm versus Realme C2s
    Depth:
    7.4 mm
  2. 2. Realme C2s

    Height:
    154.3 mm
    Width:
    73.7 mm
    Depth:
    8.5 mm +1.1 mm versus K1

Weight

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

  1. 1. K1

    156 g

  2. 2. Realme C2s

    166 g

    +10 g versus K1

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. K1

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²
  2. 2. Realme C2s

    Screen diagonal:
    6.1 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    91.3 cm²

K1 has approximately 10.1% more rectangular screen area than Realme C2s.

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 K1, Realme C2s, compared at the same storage capacity.
StorageK1Realme C2s
32 GB Unknown 3 GB RAM
K1: Original memory entry

64 GB · 4/6 GB 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. K1

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

2. Realme C2s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. K1

    3600 mAh

  2. 2. Realme C2s

    4000 mAh

    +400 mAh versus K1

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. K12. Realme C2s

Everyday essentials
Everyday essentials — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Dimensions (HxWxD)
  • 158.3 Х 75.5 Х 7.4 mm
  • 154.3 Х 73.7 Х 8.5 mm
Weight
  • 156 g
  • 166 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 6.4" inch
  • 6.1" inch
Screen resolution
  • 1080 x 2340 px
  • 720 x 1560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4/6 GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 (Oreo); ColorOS 5.2
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Mediatek MT6762 Helio P22 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 101.0 cm2
  • 91.3 cm2
Screen format
  • 19.5:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 84.5%
  • 80.3%
PPI /points per inch/
  • 402 PPI
  • 282 PPI
Screen protection
  • Corning Gorilla Glass 5
Unknown
Camera and Video
Camera and Video — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Rear camera, main
  • 16 MP
  • Dual
  • 13 MP
  • Dual
Camera specs
  • 16 MP
  • f/1.8
  • 1/2.8"
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • depth sensor
  • 13 MP
  • f/2.2
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • 1.75µm
  • depth sensor
Functions
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 25 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
  • 5 MP
  • f/2.0
  • 1/5''
  • 1.12µm
Performance

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

Performance — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Processor CPU
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU
  • Adreno 512
  • PowerVR GE8320
Antutu 7 score *
  • 140322
Unknown
General specs
General specs — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Release date
  • 2018
  • October
  • 2020
  • January
Colors
  • Blue
  • Red
  • Silver Green
  • Diamond black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 210 EUR
  • 40 EUR
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 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)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for K1, Realme C2s.
SpecificationK1Realme C2s
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W
  • Sensors Accelerometer
  • proximity
  • compass - For Thailand only