ZTE Blade A71 vs Oppo Realme C21

ZTE Blade A71 Oppo Realme C21

Here we compared two budget smartphones: the 6.52-inch ZTE Blade A71 (with Unisoc SC9863A) that was released on November 7 2021 against the Oppo Realme C21 which is powered by MediaTek Helio G35 and came out 9 months before. On this page you will find tests full specs strengths and weaknesses of each of the gadgets.

Differences
Review
Specs
Benchmarks
Battery life
Camera
Comments

Key differences

An overview of the main advantages of each smartphone Reasons to consider the ZTE Blade A71

Modern USB Type-C port
Has an ultra-wide angle camera lens
The phone is 9-months newer

Reasons to consider the Oppo Realme C21

Comes with 1000 mAh larger battery capacity: 5000 vs 4000 mAh
Newer Bluetooth version (v5)
Uses a faster type of memory: LPDDR4X 1866 MHz
More energy-efficient CPU – MediaTek Helio G35
15% better performance in AnTuTu Benchmark (132K versus 114K)
Reverse charging feature
18% faster in single-core GeekBench 5 test: 174 and 147 points

Review

Display Screen quality color accuracy brightness Blade A71 58 Realme C21 55 Performance CPU/GPU performance in apps and games Blade A71 17 Realme C21 24 Battery Battery life charging type and speed Blade A71 56 Realme C21 70 Camera Photo and video recording quality Blade A71 55 Realme C21 46 Connectivity Networks ports data transmission Blade A71 55 Realme C21 58 NanoReview score Final comparison evaluation Blade A71 48 Realme C21 49

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. ZTE Blade A71 Price Oppo Realme C21 Calculate

Tests and specifications

Comparison table of technical specifications and tests Phone: Blade A71 vs Realme C21

Display

Type	IPS LCD	IPS LCD
Size	6.52 inches	6.5 inches
Resolution	720 x 1600 pixels	720 x 1600 pixels
Aspect ratio	20:9	20:9
PPI	269 ppi	270 ppi
Refresh rate	60 Hz	60 Hz
Max rated brightness	450 nits	450 nits
HDR support	No	No
Screen protection	Tempered glass	Tempered glass
Screen-to-body ratio	82.6%	80.8%

Design and build

Height	165.2 mm (6.5 inches)	165.2 mm (6.5 inches)
Width	75.2 mm (2.96 inches)	76.4 mm (3.01 inches)
Thickness	8.2 mm (0.32 inches)	8.9 mm (0.35 inches)
Weight	180 gramm (6.35 oz)	190 gramm (6.7 oz)
Waterproof	No	No
Rear material	Plastic	Plastic
Frame material	Plastic	Plastic
Colors	Gray Blue Green	Black Blue
Fingerprint scanner	Yes in home button	Yes rear

Screen-to-body ratio Blade A71 +2% 82.6% Realme C21 80.8%

Performance

Tests of ZTE Blade A71 and Oppo Realme C21 in the benchmarks

SoC
Chipset	Unisoc SC9863A	MediaTek Helio G35
Max. clock	1600 MHz	2300 MHz
CPU cores	8 (4 + 4)	8 (4 + 4)
Architecture	- 4 cores at 1.2 GHz: Cortex-A55 - 4 cores at 1.6 GHz: Cortex-A55	- 4 cores at 1.8 GHz: Cortex-A53 - 4 cores at 2.3 GHz: Cortex-A53
Lithography process	28 nanometers	12 nanometers
Graphics	PowerVR GE8322	IMG PowerVR GE8320
GPU clock	-	680 MHz
FLOPS	-	~54.4 GFLOPS

Memory
RAM size	3 GB	3 4 GB
Memory type	LPDDR3	LPDDR4X
Memory clock	-	1866 MHz
Channels	1	2

Storage
Storage size	64 GB	32 64 GB
Storage type	eMMC 5.1	eMMC 5.1
Memory card	MicroSD	MicroSD
Memory card max. size	Up to 2048 GB	Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core) Blade A71 147 Realme C21 +18% 174 Geekbench 5 (Multi-Core) Blade A71 754 Realme C21 +32% 994 AnTuTu Benchmark 9 Blade A71 114993 Realme C21 +15% 132371

CPU	-	39772
GPU	-	16631
Memory	-	33664
UX	-	41494
Total score	114993	132371

▶️ Submit your AnTuTu result

Software

Operating system	Android 11	Android 10 (Can be upgraded to Android 11)
ROM	MiFavor 11	Realme UI 2.0

Battery

Specifications
Capacity	4000 mAh	5000 mAh
Charge power	10 W	10 W
Battery type	Li-Ion	Li-Po
Replaceable	No	No
Wireless charging	No (5 W)	No
Reverse charging	No	Yes
Fast charging	No	No
Full charging time	1:50 hr	2:55 hr

Camera

Specs and camera test of smartphones

Main camera
Matrix	16 megapixels	13 megapixels
Image resolution	4616 x 3464	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 30FPS	Up to 30FPS
Slow motion	No	No
Angle of widest lens	120°	-
Lenses	3 (16 MP + 8 MP + 2 MP)	3 (13 MP + 2 MP + 2 MP)
Wide (main) lens	- 16 MP - Aperture: f/1.8 - Phase autofocus	- 13 MP - Aperture: f/2.2 - Focal length: 26 mm - Pixel size: 1.12 micron - Sensor: 1/3" (CMOS) - Phase autofocus
Ultra-wide lens	- 8 MP - Aperture: f/2.2	-
Monochrome lens	-	- 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron - Sensor: 1/5" (CMOS)
Macro lens	-	- 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron - Sensor: 1/5" (CMOS)
Depth lens	- 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron - Sensor: 1/5.0" (CMOS)	-
Camera features	- Bokeh 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	-	27 mm
Pixel size	-	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 4 (802.11 a/b/g/n)	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	4.2	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	- Charging - USB-Storage mode - OTG
GPS	GPS GLONASS Beidou	GPS GLONASS Beidou
NFC*	Yes	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*	4	7
5G support	No	No

Sound

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

Other

Category	Budget	Budget
Announced	November 2021	March 2021
Release date	November 2021	March 2021
Sensors	- Proximity sensor - Accelerometer - Ambient light sensor - 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

If the performance battery life and connectivity are more important to you then choose the Oppo Realme C21. But if the display camera and design are more of a priority – go for the ZTE Blade A71.

Cast your vote

So which phone would you choose? ZTE Blade A71 5 (55.6%) Oppo Realme C21 4 (44.4%) Vote Total votes: 9

Related comparisons

1. Redmi 9 or Blade A71 2. Galaxy A03s or Blade A71 3. Redmi 9C or Blade A71 4. Realme C21Y or Blade A71 5. Realme C25 or Realme C21 6. Realme C21Y or Realme C21 7. Realme C31 or Realme C21