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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Build Quality
    3. Hinge
    4. Portability
    5. Serviceability
    6. In The Box
  5. Display
    1. Screen Specs
    2. Refresh Rate
    3. Contrast
    4. Brightness
    5. Reflections
    6. Black Uniformity
    7. Horizontal Viewing Angle
    8. Vertical Viewing Angle
    9. Out-Of-The-Box Color Accuracy
    10. Color Gamut
    11. Flicker
  6. Interface
    1. Keyboard
    2. Touchpad
    3. Speakers
    4. Webcam & Microphone
  7. Connectivity
    1. Ports
    2. Wireless Communication
  8. Configuration
    1. CPU
    2. GPU
    3. RAM
    4. Storage
  9. Performance
    1. Geekbench 5 (Synthetics)
    2. Cinebench R23 (CPU Rendering)
    3. Blender (3D Rendering)
    4. Basemark GPU (Game Scene)
    5. Storage Drive Performance
    6. Battery
    7. Borderlands 3
    8. Civilization VI
    9. Counter-Strike: Global Offensive
    10. Counter-Strike 2
    11. Shadow Of The Tomb Raider
    12. Thermals And Noise
    13. Performance Over Time
  10. Additional Features And Software
    1. Software
    2. Extra Features
  11. Comments

Lenovo Yoga 9i 14 (2021) vs Lenovo IdeaPad Flex 5 14 (2020)

Side-by-Side Comparison

Products

Lenovo Yoga 9i 14 (2021)
Lenovo IdeaPad Flex 5 14 (2020)

Tested using Methodology v0.8

Updated Sep 27, 2023 01:43 PM

SEE PRICE
Amazon.com

Tested using Methodology v0.8.2

Updated Feb 23, 2024 02:14 PM

SEE PRICE
Amazon.com
Lenovo Yoga 9i 14 (2021) Picture
Lenovo IdeaPad Flex 5 14 (2020) Picture

Variants

  • Yoga 9i 14 (82GB000DUS) (Mica - FHD/i7-1185G7/16GB/1TB)
  • Yoga 9i 14 (82BG000CUS) (Mica - FHD/i7-1185G7/16GB/512GB)
  • Yoga 9i 14 (82BG0090US) (Mica - FHD/i7-1195G7/16GB/512GB)
  • Yoga 9i 14 (82BG009XUS) (Mica - FHD/i7-1195G7/8GB/512GB)
  • Yoga 9i 14 (82BG0001US) (Shadow Black - 4K/i7-1185G7/16GB/512GB)
  • Yoga 9i 14 (82BG000GUK) (Shadow Black - 4K/i7-1185G7/16GB/512GB)
  • Yoga 9i 14 (82BG0091US) (Shadow Black - 4K/i7-1195G7/16GB/512GB)
  • Yoga 9i 14 (82BG000FUS) (Shadow Black - FHD/i7-1185G7/8GB/256GB)
  • IdeaPad Flex 5 14 (81X2000HUS) (Graphite Gray - Ryzen 3 4300U/4GB/128GB)
  • IdeaPad Flex 5 14 (81X20005US) (Graphite Gray - Ryzen 5 4500U/16GB/256GB)
  • IdeaPad Flex 5 14 (81X200C8US) (Graphite Gray - Ryzen 5 4500U/8GB/128GB)
  • IdeaPad Flex 5 14 (81X1004RUS) (Graphite Gray - i5-1035G1/8GB/128GB)

Our Verdict

Lenovo Yoga 9i 14 (2021)

Lenovo IdeaPad Flex 5 14 (2020)

The Lenovo Yoga 9i 14 (2021) and the Lenovo IdeaPad Flex 5 14 (2020) are both 2-in-1 convertible laptops with a 360-degree hinge and a 14-inch screen. The Yoga 9i is a more premium device that provides a better user experience with a brighter and more colorful display, including a 4k panel option, as well as better-sounding speakers and Thunderbolt 4 support. The Yoga 9i's Intel 11th Gen processors are faster than the IdeaPad Flex 5's AMD Ryzen 4000 and Intel 10th Gen CPUs; however, the Yoga 9i throttles significantly under load, while the IdeaPad Flex 5 can maintain its full performance in long and demanding workloads. The IdeaPad Flex 5 also has longer battery life, especially for video playback.

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Main Differences for
School

Threshold 

0.10

School 

7.7
7.6

Battery 
 

7.2
8.7

Full Comparison

Design

Style 
 

Style Photo  

Lenovo Yoga 9i 14 (2021) Style Photo
Lenovo IdeaPad Flex 5 14 (2020) Style Photo

Form Factor 
 

2 in 1
2 in 1
Show text

Build Quality 
 

8.0
7.0

Build Quality Photo  

Lenovo Yoga 9i 14 (2021) Build Quality Photo
Lenovo IdeaPad Flex 5 14 (2020) Build Quality Photo
Show text

Hinge 
 

7.5
8.9

Hinge Photo  

Lenovo Yoga 9i 14 (2021) Hinge Photo
Lenovo IdeaPad Flex 5 14 (2020) Hinge Photo

Range 
 

360°
360°

Stability 
 

Good
Decent

One Finger Lift 
 

No
Yes
Show text

Portability 
 

8.6
8.2

Dimensions Photo  

Lenovo Yoga 9i 14 (2021) Dimensions Photo
Lenovo IdeaPad Flex 5 14 (2020) Dimensions Photo

Size 
 

14"
14"

Thickness 
 

0.6" (1.6 cm)
0.9" (2.3 cm)

Width 
 

12.6" (32.0 cm)
12.7" (32.3 cm)

Depth 
 

8.6" (21.8 cm)
8.5" (21.5 cm)

Volume 
 

68.1 in³ (1,116.2 cm³)
96.2 in³ (1,576.4 cm³)

Weight 
 

3.1 lbs (1.4 kg)
3.3 lbs (1.5 kg)

Charger Size 
 

9.9 in³ (161.7 cm³)
10.4 in³ (169.7 cm³)

Charger Weight 
 

0.7 lbs (0.3 kg)
0.7 lbs (0.3 kg)
Show text

Serviceability 
 

5.8
6.5

Internals Photo  

Lenovo Yoga 9i 14 (2021) Internals Photo
Lenovo IdeaPad Flex 5 14 (2020) Internals Photo

Ease Of Access 
 

7.5
8.0

RAM Slots 
 

0
0

Storage Slots 
 

1
1

Replaceable Battery 
 

Yes
Yes

Replaceable Wireless Adapter 
 

No
Yes
Show text

In The Box 
 

In The Box Photo  

Lenovo Yoga 9i 14 (2021) In The Box Photo
Lenovo IdeaPad Flex 5 14 (2020) In The Box Photo
Show text
Display

Screen Specs 
 

Display Photo  

Lenovo Yoga 9i 14 (2021) Display Photo
Lenovo IdeaPad Flex 5 14 (2020) Display Photo

Resolution 
 

1920 x 1080
1920 x 1080

Aspect Ratio 
 

16:9
16:9

Pixel Density 
 

157 PPI
157 PPI

Panel Type 
 

IPS
IPS

Touch Screen 
 

Yes
Yes

Screen-To-Body Ratio 
 

80%
79%
Show text

Refresh Rate 
 

5.9
5.9

Motion Blur  

Lenovo Yoga 9i 14 (2021) Motion Blur
Lenovo IdeaPad Flex 5 14 (2020) Motion Blur

Refresh Rate 
 

60 Hz
60 Hz

Variable Refresh Rate 
 

No
No
Show text

Contrast 
 

8.4
6.9

Contrast Photo  

Lenovo Yoga 9i 14 (2021) Contrast Photo
Lenovo IdeaPad Flex 5 14 (2020) Contrast Photo

Native Contrast 
 

2,086 : 1
1,070 : 1
Show text

Brightness 
 

7.6
6.5

Maximum Brightness 
 

356 cd/m²
258 cd/m²

Minimum Brightness 
 

3 cd/m²
7 cd/m²
Show text

Reflections 
 

6.2
6.0

Reflections Photo Off  

Lenovo Yoga 9i 14 (2021) Reflections Photo Off
Lenovo IdeaPad Flex 5 14 (2020) Reflections Photo Off

Reflections Photo Max  

Lenovo Yoga 9i 14 (2021) Reflections Photo Max
Lenovo IdeaPad Flex 5 14 (2020) Reflections Photo Max

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

5.91%
6.158%

Indirect Reflections 
 

0.52%
0.476%

Calculated Direct Reflections 
 

5.39%
5.68%
Show text

Black Uniformity 
 

7.1
6.0

Black Uniformity Photo  

Lenovo Yoga 9i 14 (2021) Black Uniformity Photo
Lenovo IdeaPad Flex 5 14 (2020) Black Uniformity Photo

Uniformity (Std. Dev.) 
 

1.212%
1.966%
Show text

Horizontal Viewing Angle 
 

7.0
6.7

Horizontal Viewing Angle Video  

Horizontal Chroma Picture  

Lenovo Yoga 9i 14 (2021) Horizontal Chroma Picture
Lenovo IdeaPad Flex 5 14 (2020) Horizontal Chroma Picture

Color Washout From Left 
 

27°
23°

Color Washout From Right 
 

27°
26°

Horizontal Hue Picture  

Lenovo Yoga 9i 14 (2021) Horizontal Hue Picture
Lenovo IdeaPad Flex 5 14 (2020) Horizontal Hue Picture

Color Shift From Left 
 

60°
50°

Color Shift From Right 
 

50°
51°

Horizontal Lightness Picture  

Lenovo Yoga 9i 14 (2021) Horizontal Lightness Picture
Lenovo IdeaPad Flex 5 14 (2020) Horizontal Lightness Picture

Brightness Loss From Left 
 

28°
26°

Brightness Loss From Right 
 

30°
29°

Black Level Raise From Left 
 

60°
60°

Black Level Raise From Right 
 

60°
60°

Gamma Shift From Left 
 

27°
25°

Gamma Shift From Right 
 

29°
28°
Show text

Vertical Viewing Angle 
 

6.7
6.5

Vertical Viewing Angle Video  

Vertical Chroma Picture  

Lenovo Yoga 9i 14 (2021) Vertical Chroma Picture
Lenovo IdeaPad Flex 5 14 (2020) Vertical Chroma Picture

Color Washout From Below 
 

26°
26°

Color Washout From Above 
 

26°
26°

Vertical Hue Picture  

Lenovo Yoga 9i 14 (2021) Vertical Hue Picture
Lenovo IdeaPad Flex 5 14 (2020) Vertical Hue Picture

Color Shift From Below 
 

45°
41°

Color Shift From Above 
 

45°
29°

Vertical Lightness Picture  

Lenovo Yoga 9i 14 (2021) Vertical Lightness Picture
Lenovo IdeaPad Flex 5 14 (2020) Vertical Lightness Picture

Brightness Loss From Below 
 

28°
27°

Brightness Loss From Above 
 

28°
25°

Black Level Raise From Below 
 

31°
45°

Black Level Raise From Above 
 

45°
45°

Gamma Shift From Below 
 

24°
29°

Gamma Shift From Above 
 

24°
30°
Show text

Out-Of-The-Box Color Accuracy 
 

5.8
6.7

White Balance Screencap  

Lenovo Yoga 9i 14 (2021) White Balance Screencap
Lenovo IdeaPad Flex 5 14 (2020) White Balance Screencap

Gamma Curve Screencap  

Lenovo Yoga 9i 14 (2021) Gamma Curve Screencap
Lenovo IdeaPad Flex 5 14 (2020) Gamma Curve Screencap

Color Screencap  

Lenovo Yoga 9i 14 (2021) Color Screencap
Lenovo IdeaPad Flex 5 14 (2020) Color Screencap

Avg. White Balance dE 
 

4.88
2

Avg. Gamma 
 

2.29
2.03

Avg. Color dE 
 

3.75
5.37

Avg. Color Temperature 
 

6,943.6 K
6,486 K
Show text

Color Gamut 
 

8.3
4.0

Gamut SDR  

Lenovo Yoga 9i 14 (2021) Gamut SDR
Lenovo IdeaPad Flex 5 14 (2020) Gamut SDR

sRGB xy 
 

98.85%
64.9%

sRGB uv 
 

97.82%
53.14%

Adobe RGB xy 
 

74.08%
49.12%

Adobe RGB uv 
 

84.13%
45.96%

Gamut HDR  

Lenovo Yoga 9i 14 (2021) Gamut HDR
Lenovo IdeaPad Flex 5 14 (2020) Gamut HDR

DCI P3 xy 
 

75.13%
48.84%

DCI P3 uv 
 

81.67%
42.74%

Rec. 2020 xy 
 

54.06%
35.04%

Rec. 2020 uv 
 

60.26%
31.12%
Show text

Flicker 
 

10
10

Flicker Graph  

Lenovo Yoga 9i 14 (2021) Flicker Graph
Lenovo IdeaPad Flex 5 14 (2020) Flicker Graph

Flicker-Free 
 

Yes
Yes

Flicker Frequency 
 

No Flicker
No Flicker

Flicker Active Below 
 

0%
0%
Show text
Interface

Keyboard 
 

8.2
8.2

Keyboard Photo  

Lenovo Yoga 9i 14 (2021) Keyboard Photo
Lenovo IdeaPad Flex 5 14 (2020) Keyboard Photo

Typing Quality 
 

8.0
8.0

Numpad 
 

No
No

Backlighting 
 

Adjustable
Adjustable

Key Switch Actuation Graph  

See details on graph tool
See details on graph tool

Operating Force 
 

73 gf
63 gf

Actuation Force 
 

27 gf
36 gf

Pre-Travel 
 

1.19 mm
1.04 mm

Total Travel 
 

1.78 mm
1.50 mm
Show text

Touchpad 
 

7.4
6.9

Touchpad Photo  

Lenovo Yoga 9i 14 (2021) Touchpad Photo
Lenovo IdeaPad Flex 5 14 (2020) Touchpad Photo

Tracking Quality 
 

7.5
7.0

Size 
 

11.4 in² (73.4 cm²)
11.3 in² (73.2 cm²)

Material 
 

Glass
Plastic

Dedicated Buttons 
 

No
No
Show text

Speakers 
 

9.1
7.5

Frequency Response Plot  

See details on graph tool
See details on graph tool

Max Volume 
 

80 dB SPL
72 dB SPL

Standard Error @ Normal Vol. (65 dB) 
 

2.9 dB
4.3 dB

Slope @ Normal Vol. (65 dB) 
 

-0.1
0.3

Bass Extension (Low-Frequency Ext.) 
 

298 Hz
293 Hz

Treble Extension (High-Frequency Ext.) 
 

19 kHz
20 kHz

Dynamic Range Compression @ Max Vol. 
 

0.2 dB
1.2 dB
Show text

Webcam & Microphone 
 

6.6
6.2

Webcam Video Sample  

Video Quality 
 

6.0
5.5

Resolution 
 

720p
720p

Position 
 

Top Center
Top Center

Privacy Cover 
 

Yes
Yes

Face Unlock 
 

No
No
Show text
Connectivity

Ports 
 

7.5
7.5

Ports Photo  

Lenovo Yoga 9i 14 (2021) Ports Photo
Lenovo IdeaPad Flex 5 14 (2020) Ports Photo

USB-A Ports 
 

1
2

USB-C Ports 
 

2
1

Thunderbolt 
 

Thunderbolt 4
No

USB-C Charging 
 

Yes
Yes

USB-C Display Out 
 

Yes
No

HDMI 
 

No
1.4

DisplayPort 
 

No
No

3.5mm Jack 
 

Combo mic/headphone
Combo mic/headphone

Card Reader 
 

No
SD UHS 1

Ethernet 
 

No
No

Proprietary Port 
 

No
No

Security Lock 
 

No
No
Show text

Wireless Communication 
 

Wi-Fi 
 

Wi-Fi 6 (802.11ax)
Wi-Fi 5 (802.11ac)

Bluetooth 
 

5.2
5.0
Show text
Configuration

CPU 
 

Brand 
 

Intel
AMD

Model 
 

Core i7-1195G7
Ryzen 5 4500U

Core Count 
 

4
6

Thread Count 
 

8
6
Show text

GPU 
 

Brand 
 

Intel
AMD

Model 
 

Iris Xe Graphics G7
Radeon Graphics 384SP

Dedicated/Integrated 
 

Integrated
Integrated

VRAM Size 
 

N/A
N/A
Show text

RAM 
 

Capacity 
 

8 GB
16 GB

Modules 
 

2 (Soldered)
2 (Soldered)

Type 
 

DDR4
DDR4

Speed 
 

4,267 MHz
3,200 MHz
Show text

Storage 
 

Advertised Capacity 
 

512 GB
256 GB

Usable Capacity 
 

462 GB
208 GB

Drive 1 
 

SK Hynix HFS512GDE9X084N
SK Hynix_HFM256GDHTNI-87A0B

Drive 1 Type  

SSD
SSD

Drive 2 
 

No 2nd Drive
No 2nd Drive

Drive 2 Type  

No 2nd Drive
No 2nd Drive
Show text
Performance

Geekbench 5 (Synthetics) 
 

8.3
7.1

Geekbench Image  

Lenovo Yoga 9i 14 (2021) Geekbench Image
Lenovo IdeaPad Flex 5 14 (2020) Geekbench Image

CPU Single-Thread 
 

1,630 points
1,114 points

CPU Multi-Thread 
 

5,455 points
4,457 points

GPU Compute 
 

17,208 points
10,429 points
Show text

Cinebench R23 (CPU Rendering) 
 

8.4
8.1

Cinebench R23 Photo  

Lenovo Yoga 9i 14 (2021) Cinebench R23 Photo
Lenovo IdeaPad Flex 5 14 (2020) Cinebench R23 Photo

Single-Thread 
 

1,495 points
1,152 points

Multi-Thread 
 

4,651 points
5,595 points
Show text

Blender (3D Rendering) 
 

3.1
4.8

Blender Image  

Lenovo Yoga 9i 14 (2021) Blender Image
Lenovo IdeaPad Flex 5 14 (2020) Blender Image

CPU Render Time 
 

13.1 min
7.0 min

GPU Render Time 
 

12.6 min
12.4 min

GPU Render Time (Optix) 
 

N/A
N/A
Show text

Basemark GPU (Game Scene) 
 

5.4
3.9

Basemark Image  

Lenovo Yoga 9i 14 (2021) Basemark Image
Lenovo IdeaPad Flex 5 14 (2020) Basemark Image

Overall Score 
 

18,519
9,699
Show text

Storage Drive Performance 
 

9.4
8.8

Storage Performance Image  

Lenovo Yoga 9i 14 (2021) Storage Performance Image
Lenovo IdeaPad Flex 5 14 (2020) Storage Performance Image

Sequential Write Speed 
 

1,363.6 MB/s
718.2 MB/s

Sequential Read Speed 
 

2,648.6 MB/s
1,496.1 MB/s

Random Write Speed 
 

112.1 MB/s
64.9 MB/s

Random Read Speed 
 

64.8 MB/s
43.1 MB/s
Show text

Battery 
 

7.2
8.7

Capacity 
 

71 Wh
53 Wh

Battery Life (Web Browsing) 
 

9.0 hrs
11.4 hrs

Battery Life (Video Playback) 
 

5.9 hrs
9.0 hrs

Battery Life (Gaming) 
 

2.2 hrs
1.5 hrs

Charge Time 
 

2.3 hrs
2.5 hrs
Show text

Borderlands 3 
 

1.5
1.6

Borderlands 3 Graph  

See details on graph tool
See details on graph tool

Avg. FPS 
 

9 fps
10 fps

1% Low 
 

1 fps
7 fps

0.1% Low 
 

0 fps
4 fps

1% Low Delta 
 

948 ms
49 ms

0.1% Low Delta 
 

2,292 ms
141 ms

Avg. FPS On Very Low 
 

19 fps
27 fps
Show text

Civilization VI 
 

4.1
4.2

Civilization VI Graph  

See details on graph tool
See details on graph tool

Avg. FPS 
 

22 fps
21 fps

1% Low 
 

14 fps
14 fps

0.1% Low 
 

11 fps
13 fps

1% Low Delta 
 

25 ms
23 ms

0.1% Low Delta 
 

47 ms
31 ms

Avg. FPS On Minimum 
 

61 fps
72 fps

Avg. Turn Time 
 

9.89 s
8.7 s
Show text

Counter-Strike: Global Offensive 
 

5.9
5.2

CS:GO graph  

See details on graph tool
See details on graph tool

Avg. FPS 
 

56 fps
56 fps

1% Low 
 

29 fps
23 fps

0.1% Low 
 

23 fps
19 fps

1% Low Delta 
 

16 ms
26 ms

0.1% Low Delta 
 

26 ms
35 ms

Avg. FPS On Low 
 

100 fps
121 fps
Show text

Counter-Strike 2 
 

CS2 Graph  

Avg. FPS 
 

1% Low 
 

0.1% Low 
 

1% Low Delta 
 

0.1% Low Delta 
 

Avg. FPS On Low 
 

Shadow Of The Tomb Raider 
 

2.0
2.6

SOTTR Graph  

See details on graph tool
See details on graph tool

Avg. FPS 
 

13 fps
15 fps

1% Low 
 

2 fps
11 fps

0.1% Low 
 

0 fps
7 fps

1% Low Delta 
 

444 ms
26 ms

0.1% Low Delta 
 

2,637 ms
85 ms

Avg. FPS On Lowest 
 

25 fps
27 fps
Show text

Thermals And Noise 
 

7.8
6.8

Keyboard Temps Picture  

Lenovo Yoga 9i 14 (2021) Keyboard Temps Picture
Lenovo IdeaPad Flex 5 14 (2020) Keyboard Temps Picture

Keyboard Temp While Idle 
 

33 °C (91 °F)
32 °C (90 °F)

Keyboard Temp Under Load 
 

44 °C (111 °F)
51 °C (124 °F)

Fan Noise While Idle 
 

25.0 dBA
25.0 dBA

Fan Noise Under Load 
 

40.5 dBA
43.0 dBA

Power & Fan Control App 
 

Yes
No
Show text

Performance Over Time 
 

5.0
10

Performance Over Time Graph  

See details on graph tool

Performance Over Time Image  

Lenovo Yoga 9i 14 (2021) Performance Over Time Image

CPU Temp (Cinebench) 
 

68 °C
87 °C

CPU Perf. Loss (Cinebench) 
 

23% loss
0% loss

GPU Temp (Heaven) 
 

67 °C
60 °C

GPU Perf. Loss (Heaven) 
 

11% loss
0% loss
Show text
Additional Features And Software

Software 
 

Operating System 
 

Windows 11
Windows 10

Additional Software 
 

Yes
Yes
Show text

Extra Features 
 

RGB Illumination 
 

No
No

Touch Pen 
 

Yes
Yes

Secondary Display 
 

No
No

Biometrics 
 

Fingerprint Sensor
Fingerprint Sensor
Show text

Lenovo Yoga 9i 14 (2021)

Lenovo IdeaPad Flex 5 14 (2020)

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