Home > Smartphone comparison > Realme 6 vs Oppo A91 – which one to choose?

Oppo Realme 6 vs Oppo A91

Here we compared two mid-range smartphones: the 6.5-inch Oppo Realme 6 (with MediaTek Helio G90T) that was released on March 5, 2020, against the Oppo A91, which is powered by MediaTek Helio P70 and came out 2 months before. 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 6
  • Higher display refresh rate – 90 Hz
  • 39% better performance in AnTuTu Benchmark (311K versus 224K)
  • Newer Bluetooth version (v5)
  • Ability to record video in 4K resolution
  • More recent OS version: Android 10 versus 9
  • Slow-motion recording at 240FPS
  • 82% faster in single-core GeekBench 5 test: 542 and 298 points
  • The front-facing camera can record video at 1080p
Reasons to consider the Oppo A91
  • Delivers 35% higher maximum brightness (608 against 450 nits)
  • AMOLED display (versus competitor's IPS LCD)
  • Weighs 19 grams less

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
Phone:
vs

Display

Type IPS LCD AMOLED
Size 6.5 inches 6.4 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 405 ppi 408 ppi
Refresh rate 90 Hz 60 Hz
HDR support No No
Screen protection Corning Gorilla Glass 3 Corning Gorilla Glass 5
Screen-to-body ratio 84.1% 85.5%
Display features - - Always-On Display
Display tests
RGB color space 98.7% 100%
PWM Not detected 250 Hz
Response time 25.4 ms 3.2 ms
Contrast 991:1 ∞ Infinity
Max. Brightness
450 nits
Oppo A91 +35%
608 nits
Sources: NotebookCheck [1], [2]

Design and build

Height 162.1 mm (6.38 inches) 160.2 mm (6.31 inches)
Width 74.8 mm (2.94 inches) 73.3 mm (2.89 inches)
Thickness 8.9 mm (0.35 inches) 7.9 mm (0.31 inches)
Weight 191 gramm (6.74 oz) 172 gramm (6.07 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors White, Blue Black, Blue
Fingerprint scanner Yes, in home button Yes, in-display
Screen-to-body ratio
84.1%
Oppo A91 +2%
85.5%

Performance

Tests of Oppo Realme 6 and Oppo A91 in the benchmarks
SoC
Chipset MediaTek Helio G90T MediaTek Helio P70
Max. clock 2050 MHz 2100 MHz
CPU cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.05 GHz: Cortex-A76
- 4 cores at 2 GHz: Cortex-A53
- 4 cores at 2.1 GHz: Cortex-A73
Lithography process 12 nanometers 12 nanometers
Graphics Mali-G76MC4 Mali-G72 MP3
GPU clock 800 MHz 900 MHz
FLOPS ~184 GFLOPS ~78.8 GFLOPS
Memory
RAM size 4, 8 GB 8 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 128 GB 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card MicroSD MicroSD
Memory card max. size Up to 256 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
Realme 6 +82%
542
298
Geekbench 5 (Multi-Core)
Realme 6 +19%
1708
1434
AnTuTu Benchmark 9
Realme 6 +39%
311807
224603

Software

Operating system Android 10.0 Android 9.0
ROM Realme UI ColorOS 6.1
OS size 13 GB 20 GB

Battery

Specifications
Capacity 4300 mAh 4025 mAh
Charge power 30 W 20 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (100% in 55 min) Yes, VOOC 3.0 (50% in 30 min)
Full charging time 0:55 hr 1:35 hr

Battery life tests

Web browsing (Wi-Fi)
17:04 hr
n/a
Watching videos (Player)
14:00 hr
n/a
Talk (3G)
37:24 hr
n/a

Camera

Specs and camera test of smartphones
Main camera
Matrix 64 megapixels 48 megapixels
Image resolution 9248 x 6920 8000 x 6000
Zoom Digital Digital
Flash LED Dual LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS No
1080p video recording Up to 60FPS Up to 30FPS
Slow motion 240 FPS (720p) 120 FPS (720p)
Angle of widest lens 119° 119°
Lenses 4 (64 MP + 8 MP + 2 MP + 2 MP) 4 (48 MP + 8 MP + 2 MP + 2 MP)
Wide (main) lens - 64 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.72", Samsung Bright S5KGW1 (ISOCELL Plus CMOS)
- Phase autofocus
- 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0" (CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.3
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
- 8 MP
- Aperture: f/2.3
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
Monochrome lens - 2 MP
- Aperture: f/2.4
- Focal length: 22 mm
- Pixel size: 1.75 micron
- Sensor: 1/5" (CMOS)
- 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5.0" (CMOS)
Macro lens - 2 MP
- Aperture: f/2.4
- Focal length: 22 mm
- Pixel size: 1.75 micron
- Sensor: 1/5.0" (CMOS)
-
Depth lens - - 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 16 megapixels 16 megapixels
Image resolution 4920 x 3264 4920 x 3264
Aperture f/2.0 f/2.0
Focal length 26 mm 26 mm
Pixel size 1 microns -
Sensor type CMOS CMOS
Sensor size 1/3.1" 1/3.06"
Video resolution 1080p (Full HD) at 30 FPS 720p at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 4.2
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
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* 6 7
5G support - No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes No
Dolby Atmos No No
Speakers test
Max. loudness
87.4 dB
Oppo A91 +2%
88.9 dB

Other

Category Mid-range Mid-range
Announced March 2020 December 2019
Release date March 2020 June 2020
Launch price ~ 250 USD ~ 350 USD
SAR (head) 0.71 W/kg -
SAR (body) 0.57 W/kg -
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

These smartphones have a lot in common, but we would recommend the Oppo Realme 6. It has a better performance, software, camera, and connectivity.

Cast your vote

So, which phone would you choose?
17 (60.7%)
11 (39.3%)
Total votes: 28

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