realme C21Y vs Samsung Galaxy S10 Plus: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: realme C21Y vs Samsung Galaxy S10 Plus. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

realme C21Y
realme C21Y
International · 3GB · 32GB
View datasheet
vs
Samsung Galaxy S10 Plus
Samsung Galaxy S10 Plus
Global · 8GB · 128GB · G975F
View datasheet
vs

Score

Ki Cost-effective
Score
6.3 Ki Cost-effective
Score
8.1 Ki Cost-effective
Score
Design and Screen score 4.9Design & Materials 7.6Design & Materials
Performance and Hardware score 5.3Performance & Hardware 6.5Performance & Hardware
Camera score 5.0Camera 7.5Camera
Connectivity score 5.0 Connectivity 7.7 Connectivity
Battery score 6.9 Battery 5.5 Battery

User reviews

User score
8.5
23 reviews
9.1
150 reviews

Technical specifications of the realme C21Y vs Samsung Galaxy S10 Plus

Specs realme C21Y price comparison realme C21Y
International · 3GB · 32GB
where to buy Samsung Galaxy S10 Plus Samsung Galaxy S10 Plus
Global · 8GB · 128GB · G975F
Inches 6.5" 6.4"
Resolution HD+ WQHD+
Usable surface 80% useful 86% useful
Aspect Ratio 20:9 19:9
Dimensions 76.0 mm
164.5 mm
9.1 mm
74.1 mm
157.6 mm
7.8 mm
Weight 200 g 175 g
Micro Unisoc Tiger T610
Octa-Core
Exynos 9820
Octa-Core
RAM 3 GB RAM 8 GB RAM
Storage 32 GB 128 GB
AnTuTu 196.316
v9
395.326
v8
Battery 5000 mAh 4100 mAh
Main Camera 1
13 Mpx · ƒ/2.2

2 3
1
12 Mpx · ƒ/1.5-2.4
SAK2L4
2 3
Selfie Camera SELF 5 Mpx · ƒ/2.2 SELF 10 Mpx · ƒ/1.9
Bands
OS Android 10 Q Android 12 Snow Cone

Brand

Brand realme Samsung
Aliases RMX3261, Realme C21Y RU Galaxy S10Plus Exynos

Release Date

Release date July 2021,
2 years ago
February 2019,
5 years ago
State On Sale On Sale
Market International Global

Design & Materials

Structure

realme C21Y
Samsung Galaxy S10 Plus
realme C21Y
Samsung Galaxy S10 Plus
Size
76.0 mm 164.5 mm 9.1 mm
Print 3D Model
74.1 mm 157.6 mm 7.8 mm
Print 3D Model
Weight 200 g 175 g
Usable surface 80 % 86 %
Materials Plastic Glass
Resistance - IP68
Colors
Black

Cyan
Black

White

Green

Screen

Diagonal 6.5" 6.4"
Type LCD IPS AMOLED Dynamic Amoled
Aspect Ratio 20:9 19:9
Resolution HD+
720 x 1600 px
WQHD+
1440 x 3040 px
Density 269 Pixels per inch 526 Pixels per inch

Others

Others
  • Water Drop Notch
  • Brightnes 400 cd/m² (typ)
  • TÜV Rheinland Eye Comfort Certification
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Hole-punch Notch
  • Peak brightness - 1200 cd/m²
  • 2000000:1 contrast ratio
  • Always-On Display
  • HDR10+
  • DCI-P3
  • Scratch resistant
  • Dual Edge display
  • Corning Gorilla Glass 6
  • Capacitive
  • Multi-touch
  • VR headset support
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
7.5
8.0
Do you think it's a nice phone?
8.5
9.7
Is it comfortable?
8.1
9.2
Can you see it well in the sunlight?
6.9
9.1
Number of reviews
23 reviews
150 reviews

Performance & Hardware

Processor

Model Unisoc Tiger T610 Samsung Exynos 9 9820
CPU 2x1.8 GHz Cortex-A75 + 6x1.8 GHz Cortex-A55 2x Exynos M4 2.73 GHz + 2x Cortex-A75 2.31 GHz + Cortex-A55 1.95 GHz
Type Octa-Core Octa-Core
Manufacturing 12 nm 8 nm
64 Bits Yes Yes

Graphics

GPU ARM Mali-G52 MP2 ARM Mali-G76 MP12

RAM

RAM 3 GB 8 GB
Type LPDDR4X RAM LPDDR4X RAM

Storage

Capacity 32 GB 128 GB
Type -- UFS Storage 2.1
SD Slot Yes ,
Independent SD slot
Yes ,
Slot for SD or second SIM card

Security

Fingerprint Yes, in the back Yes, in screen

Sensors

Sensors
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Barometer
  • Hall
  • Heart Rate

Audio

Audio
-
  • Dolby Atmos
  • Stereo Speakers

Others

Notifications LED -- --
Cooling system No No
Gaming buttons No No

User reviews

Does it have good sound?
7.9
9.3
Does it work smoothly in everyday use?
9.0
9.3
What's your experience been with demanding games?
8.2
8.9
Number of reviews
23 reviews
150 reviews

Camera

Main

No. of cameras Triple rear camera Triple rear camera
1
Camera type

Standard

Standard
Resolution 13 Mpx 12 Mpx
Sensor Unknown Samsung SAK2L4
Type CMOS ISOCELL
Aperture ƒ/ 2.2 ƒ/ 1.5-2.4
ISO -- --
Pixel size -- 1.40 µm
Pixel Binning -- --
Sensor size -- 1/2.6"
2
Camera type

Portrait mode (depth)

Telephoto lens
Resolution
2 Mpx
13 Mpx
Sensor
Unknown
Samsung S5K3M3
Type
--
ISOCELL
Aperture
ƒ/ 2.4
ƒ/ 2.4
Pixel size
--
1.00 µm
Pixel Binning
--
--
Sensor size
--
1/3.4"
3
Camera type

Macro lens

Wide Angle lens
Resolution
2 Mpx
16 Mpx
Sensor
Unknown
Unknown
Type
--
--
Aperture
ƒ/ 2.4
ƒ/ 2.2
Pixel size
--
--
Pixel Binning
--
--
Sensor size
--
--

Features

Flash LED Dual LED
Optical Stabilisation No Yes
Slow Motion Video Yes,
120 fps
Yes,
960 fps
Others
  • Digital zoom
  • Triple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Phase detection autofocus (PDAF)
  • Contrast detection autofocus (CDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • 4K Video
  • Digital zoom
  • Optical zoom
  • Triple camera
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Manual focus
  • Dual front camera
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW

Selfie

SELF
Camera type

Dedicated

Dedicated
Resolution 5 Mpx 10 Mpx
Sensor Unknown Samsung S5K3J1
Type -- ISOCELL
Aperture ƒ/ 2.2 ƒ/ 1.9
Pixel size -- 1.22 µm
Pixel Binning -- --
Sensor size -- 1/2.65"
Others
--
--

DxOMark Score

DxOMark Score --
129
Selfie
127
Photo
131
Video

User reviews

Quality of daytime photos
7.5
9.3
Quality of nighttime photos
4.8
8.3
Quality of selfies
5.5
8.8
Does it have a powerful flash?
7.3
8.8
Number of reviews
23 reviews
150 reviews

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
3G
  • B1 (2100)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card

Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi

Wi-Fi
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
Others
  • Wi-Fi Hotspot
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO

Bluetooth

Version Bluetooth 5.0 LE Low energy consumption Bluetooth 5.0 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • EDR (Enhanced Data Rate)
  • LE (Low Energy)
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)

Navigation

Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo

USB

USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.1

SAR

European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

-- 0.516 W/Kg on head
1.582 W/Kg on body
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

-- 1.060 W/Kg on head
1.029 W/Kg on body

Others

Others
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • NFC
  • Audio Jack
  • Computer sync
  • OTA sync
  • Tethering.
  • ANT+

User reviews

Does it have good coverage for calls?
8.1
9.3
Quality of the GPS
8.0
9.2
And the WiFi?
8.5
9.4
Number of reviews
23 reviews
150 reviews

Battery

Battery

Capacity
5000 mAh
4100 mAh
Type Li-Polymer Li-Polymer
Fast charge Yes,
10.0W
Yes,
25.0W
Others
  • Non-removable
  • Wireless charging
  • Reverse charging
  • Non-removable

User reviews

How long does the battery last?
  • 0%
    Less than half day
  • 9%
    Less than a day
  • 13%
    One day
  • 61%
    More than one day
  • 17%
    Two days or more
  • 5%
    Less than half day
  • 20%
    Less than a day
  • 40%
    One day
  • 32%
    More than one day
  • 4%
    Two days or more
Number of reviews
23 reviews
150 reviews

Software

Software

Operating System
  • RealmeUI (Android 10)
    Android 10 Q, 4 years ago
  • Android 12
    Android 12 Snow Cone, 3 years ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 13%
    It comes with a clean operating system
  • 70%
    It has preinstalled apps but they don't bother me
  • 17%
    It has preinstalled apps that I can't uninstall
  • 15%
    It comes with a clean operating system
  • 75%
    It has preinstalled apps but they don't bother me
  • 11%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 5%
    Never
  • 15%
    Once a year
  • 55%
    Every six months
  • 25%
    Every two months or less
  • 4%
    Never
  • 3%
    Once a year
  • 30%
    Every six months
  • 63%
    Every two months or less
Number of reviews
23 reviews
150 reviews