Oppo Realme C25s vs Realme C21Y

Here we compared two budget smartphones: the 6.5-inch Oppo Realme C25s (with MediaTek Helio G85) that was released on June 8, 2021, against the Oppo Realme C21Y, which is powered by Unisoc T610 and came out 1 month after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Oppo Realme C25s
  • Comes with 1000 mAh larger battery capacity: 6000 vs 5000 mAh
  • Modern USB Type-C port
  • Compatible with Wi-Fi 5 wireless networks
  • Supports 18W fast charging
  • 14% better performance in AnTuTu Benchmark (219K versus 193K)
  • Delivers 21% higher maximum brightness (479 against 397 nits)
  • 11% faster in single-core GeekBench 5 test: 388 and 349 points

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type IPS LCD IPS LCD
Size 6.5 inches 6.5 inches
Resolution 720 x 1600 pixels 720 x 1600 pixels
Aspect ratio 20:9 20:9
PPI 270 ppi 270 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 81.7% 81.6%
Max. Brightness
479 nits
397 nits

Design and build

Height 164.5 mm (6.48 inches) 164.5 mm (6.48 inches)
Width 75.9 mm (2.99 inches) 76 mm (2.99 inches)
Thickness 9.6 mm (0.38 inches) 9.1 mm (0.36 inches)
Weight 209 gramm (7.37 oz) 200 gramm (7.05 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Gray, Blue Black, Blue
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
81.7%
81.6%

Performance

Tests of Oppo Realme C25s and Oppo Realme C21Y in the benchmarks
SoC
Chipset MediaTek Helio G85 Unisoc T610
Max. clock 2000 MHz 1800 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.8 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
- 6 cores at 1.82 GHz: Cortex-A55
- 2 cores at 1.82 GHz: Cortex-A75
L3 cache - 1 MB
Lithography process 12 nanometers 12 nanometers
Graphics Mali-G52 MP2 ARM Mali G52 MP2
GPU clock 1000 MHz 614 MHz
FLOPS ~59 GFLOPS ~71.2 GFLOPS
Memory
RAM size 4 GB 3, 4 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128 GB 32, 64 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 256 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
388
Geekbench 5 (Multi-Core)
1363
AnTuTu Benchmark 9
219792
193009
CPU 71210 66485
GPU 39410 32103
Memory 47486 37779
UX 63490 57506
Total score 219792 193009
3DMark Wild Life Performance
Stability 97% -
Graphics test 4 FPS -
Graphics score 707 -
PCMark 3.0 score 8830 -
Sources: 3DMark [3]

Software

Operating system Android 11 Android 11
ROM Realme UI 2.0 Realme UI 2.0

Battery

Specifications
Capacity 6000 mAh 5000 mAh
Charge power 18 W 10 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging Yes Yes
Fast charging Yes (43% in 70 min) No
Full charging time 3:10 hr 3:00 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 13 megapixels
Image resolution 8000 x 6000 4128 x 3096
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 60FPS Up to 30FPS
Slow motion No No
Lenses 3 (48 MP + 2 MP + 2 MP) 3 (13 MP + 2 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Phase autofocus
- 13 MP
- Aperture: f/2.2
- Focal length: 26 mm
- Sensor: 1/3.06" (CMOS)
- Phase autofocus
Macro lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
Depth lens - 2 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
Selfie camera
Megapixels 8 megapixels 5 megapixels
Image resolution 3264 x 2448 2560 x 1960
Aperture f/2.0 f/2.2
Focal length 26 mm 27 mm
Pixel size 1.12 microns 1.12 microns
Sensor type CMOS CMOS
Sensor size - 1/5"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, HID, A2DP
USB type USB Type-C Micro USB
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou
NFC* No No
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 7 7
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio No No
Dolby Atmos No No

Other

Category Budget Budget
Announced June 2021 June 2021
Release date June 2021 July 2021
Sensors - Proximity sensor
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Oppo Realme C25s is definitely a better buy.

Cast your vote

So, which phone would you choose?
60 (80%)
15 (20%)
Total votes: 75

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