Products
Lenovo IdeaPad Flex 5 14 (2020)
Lenovo Chromebook Duet 5 (2021)
Tested using Methodology v0.8.2
Updated Feb 23, 2024 02:14 PM
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Tested using Methodology v0.8
Updated Aug 28, 2025 01:25 PM
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Size
14"
Operating System
Windows 10
Size
13.3"
Operating System
Chrome OS
Our Verdict
Lenovo IdeaPad Flex 5 14 (2020)
Lenovo Chromebook Duet 5 (2021)
The Lenovo Chromebook Duet 5 (2021) and the Lenovo IdeaPad Flex 5 14 (2020) are very different. Although they're both 2-in-1 convertibles, the Duet 5 is a Chrome OS tablet with a kickstand and detachable keyboard, while the Flex 5 is a Windows clamshell laptop with a 360-degree hinge. The Flex 5 is better for productivity as its CPU can handle heavier workloads, and it provides a better user experience, like a better keyboard, touchpad, and port selection. However, the Duet 5 is better for media consumption because it has an OLED panel with superior image quality.
Variants
- 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)
- Chromebook Duet 5 (82QS001NCF) (Abyss Blue - 4GB/128GB)
- Chromebook Duet 5 (82QS0000US) (Abyss Blue - 4GB/64GB)
- Chromebook Duet 5 (82QS001HUS) (Abyss Blue - 8GB/128GB)
- Chromebook Duet 5 (82QS001DUS) (Storm Gray - 4GB/64GB)
Main Differences for
School
School
Threshold
School
7.6
7.0
Keyboard
8.2
5.1
Ports
7.5
2.5
Portability
8.2
9.1
Geekbench 5 (Synthetics)
7.1
4.2
Touchpad
6.9
5.7
Webcam & Microphone
6.2
8.2
Full Comparison
Design
Style
Style Photo
Form Factor
2 in 1
Tablet
Build Quality
7.0
7.0
Build Quality Photo
Hinge
8.9
6.9
Hinge Photo
Range
360°
170°
Stability
Decent
Good
One Finger Lift
Yes
No
Portability
8.2
9.1
Dimensions Photo
Size
14"
13.3"
Thickness
0.9" (2.3 cm)
0.6" (1.6 cm)
Width
12.7" (32.3 cm)
12.0" (30.5 cm)
Depth
8.5" (21.5 cm)
7.7" (19.5 cm)
Volume
96.2 in³ (1,576.4 cm³)
57.3 in³ (939.7 cm³)
Weight
3.3 lbs (1.5 kg)
2.7 lbs (1.2 kg)
Charger Size
10.4 in³ (169.7 cm³)
3.8 in³ (61.6 cm³)
Charger Weight
0.7 lbs (0.3 kg)
0.2 lbs (0.1 kg)
Serviceability
6.5
0.0
Internals Photo
Ease Of Access
8.0
0
RAM Slots
0
0
Storage Slots
1
0
Replaceable Battery
Yes
No
Replaceable Wireless Adapter
Yes
No
In The Box
In The Box Photo
Display
Screen Specs
Display Photo
Resolution
1920 x 1080
1920 x 1080
Aspect Ratio
16:9
16:9
Pixel Density
157 PPI
166 PPI
Panel Type
IPS
OLED
Touch Screen
Yes
Yes
Screen-To-Body Ratio
79%
85%
Refresh Rate
5.9
5.9
Motion Blur
Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
No
No
Contrast
6.9
10
Contrast Photo
Native Contrast
1,070 : 1
100,400 : 1
Brightness
6.5
7.5
Maximum Brightness
258 cd/m²
345 cd/m²
Minimum Brightness
7 cd/m²
3 cd/m²
Reflections
6.0
6.5
Reflections Photo Off
Reflections Photo Max
Screen Finish
Glossy
Glossy
Total Reflections
6.158%
5.483%
Indirect Reflections
0.476%
0.751%
Calculated Direct Reflections
5.68%
4.73%
Black Uniformity
6.0
10
Black Uniformity Photo
Uniformity (Std. Dev.)
1.966%
0.044%
Horizontal Viewing Angle
6.7
6.0
Horizontal Viewing Angle Video
Horizontal Chroma Picture
Color Washout From Left
23°
36°
Color Washout From Right
26°
36°
Horizontal Hue Picture
Color Shift From Left
50°
18°
Color Shift From Right
51°
19°
Horizontal Lightness Picture
Brightness Loss From Left
26°
40°
Brightness Loss From Right
29°
42°
Black Level Raise From Left
60°
22°
Black Level Raise From Right
60°
6°
Gamma Shift From Left
25°
38°
Gamma Shift From Right
28°
39°
Vertical Viewing Angle
6.5
6.3
Vertical Viewing Angle Video
Vertical Chroma Picture
Color Washout From Below
26°
35°
Color Washout From Above
26°
37°
Vertical Hue Picture
Color Shift From Below
41°
17°
Color Shift From Above
29°
19°
Vertical Lightness Picture
Brightness Loss From Below
27°
40°
Brightness Loss From Above
25°
42°
Black Level Raise From Below
45°
13°
Black Level Raise From Above
45°
44°
Gamma Shift From Below
29°
35°
Gamma Shift From Above
30°
38°
Out-Of-The-Box Color Accuracy
6.7
6.0
White Balance Screencap
Gamma Curve Screencap
Color Screencap
Avg. White Balance dE
2
2.92
Avg. Gamma
2.03
2.38
Avg. Color dE
5.37
5.29
Avg. Color Temperature
6,486 K
5,962 K
Color Gamut
4.0
9.7
Gamut SDR
sRGB xy
64.9%
154.2%
sRGB uv
53.14%
142.73%
Adobe RGB xy
49.12%
96.2%
Adobe RGB uv
45.96%
98.86%
Gamut HDR
DCI P3 xy
48.84%
100%
DCI P3 uv
42.74%
100%
Rec. 2020 xy
35.04%
81.51%
Rec. 2020 uv
31.12%
82.8%
Flicker
10
10
Flicker Graph
Flicker-Free
Yes
No
Flicker Frequency
No Flicker
> 1000Hz
Flicker Active Below
0%
0%
Interface
Keyboard
8.2
5.1
Keyboard Photo
Typing Quality
8.0
6.0
Numpad
No
No
Backlighting
Adjustable
No
Key Switch Actuation Graph
Operating Force
63 gf
72 gf
Actuation Force
36 gf
37 gf
Pre-Travel
1.04 mm
0.93 mm
Total Travel
1.50 mm
1.58 mm
Touchpad
6.9
5.7
Touchpad Photo
Tracking Quality
7.0
5.5
Size
11.3 in² (73.2 cm²)
9.8 in² (63.4 cm²)
Material
Plastic
Plastic
Dedicated Buttons
No
1
Speakers
7.5
6.4
Frequency Response Plot
Max Volume
72 dB SPL
75 dB SPL
Standard Error @ Normal Vol. (65 dB)
4.3 dB
6.8 dB
Slope @ Normal Vol. (65 dB)
0.3
-0.2
Bass Extension (Low-Frequency Ext.)
293 Hz
302 Hz
Treble Extension (High-Frequency Ext.)
20 kHz
15 kHz
Dynamic Range Compression @ Max Vol.
1.2 dB
0.8 dB
Webcam & Microphone
6.2
8.2
Webcam Video Sample
Video Quality
5.5
8.5
Resolution
720p
1080p
Position
Top Center
Top Center
Privacy Cover
Yes
No
Face Unlock
No
No
Connectivity
Ports
7.5
2.5
Ports Photo
USB-A Ports
2
0
USB-C Ports
1
2
Thunderbolt
No
No
USB-C Charging
Yes
Yes
USB-C Display Out
No
Yes
HDMI
1.4
No
DisplayPort
No
No
3.5mm Jack
Combo mic/headphone
None
Card Reader
SD UHS 1
No
Ethernet
No
No
Proprietary Port
No
5-Point Pogo Pins for Keyboard
Security Lock
No
No
Wireless Communication
Wi-Fi
Wi-Fi 5 (802.11ac)
Wi-Fi 5 (802.11ac)
Bluetooth
5.0
5.1
Configuration
CPU
Brand
AMD
Qualcomm
Model
Ryzen 5 4500U
Snapdragon SC7180
Core Count
6
8
Thread Count
6
8
GPU
Brand
AMD
Qualcomm
Model
Radeon Graphics 384SP
Adreno 618
Dedicated/Integrated
Integrated
Integrated
VRAM Size
N/A
N/A
RAM
Capacity
16 GB
4 GB
Modules
2 (Soldered)
1 (Soldered)
Type
DDR4
LP-DDR4X
Speed
3,200 MHz
2,133 MHz
Storage
Advertised Capacity
256 GB
64 GB
Usable Capacity
208 GB
47 GB
Drive 1
SK Hynix_HFM256GDHTNI-87A0B
Unknown
Drive 1 Type
SSD
eMMC
Drive 2
No 2nd Drive
No 2nd Drive
Drive 2 Type
No 2nd Drive
No 2nd Drive
Performance
Geekbench 5 (Synthetics)
7.1
4.2
Geekbench Image
CPU Single-Thread
1,114 points
607 points
CPU Multi-Thread
4,457 points
1,528 points
GPU Compute
10,429 points
N/A
Cinebench R23 (CPU Rendering)
8.1
0.0
Cinebench R23 Photo
Single-Thread
1,152 points
N/A
Multi-Thread
5,595 points
N/A
Blender (3D Rendering)
4.8
0.0
Blender Image
CPU Render Time
7.0 min
N/A
GPU Render Time
12.4 min
N/A
GPU Render Time (Optix)
N/A
N/A
Basemark GPU (Game Scene)
3.9
0.8
Basemark Image
Overall Score
9,699
1,847
Storage Drive Performance
8.8
3.3
Storage Performance Image
Sequential Write Speed
718.2 MB/s
137.0 MB/s
Sequential Read Speed
1,496.1 MB/s
159.4 MB/s
Random Write Speed
64.9 MB/s
2.5 MB/s
Random Read Speed
43.1 MB/s
5.9 MB/s
Battery
8.7
8.3
Capacity
53 Wh
42 Wh
Battery Life (Web Browsing)
11.4 hrs
10.5 hrs
Battery Life (Video Playback)
9.0 hrs
7.8 hrs
Battery Life (Gaming)
1.5 hrs
6.7 hrs
Charge Time
2.5 hrs
2.7 hrs
Borderlands 3
1.6
0.0
Borderlands 3 Graph
Avg. FPS
10 fps
N/A
1% Low
7 fps
N/A
0.1% Low
4 fps
N/A
1% Low Delta
49 ms
N/A
0.1% Low Delta
141 ms
N/A
Avg. FPS On Very Low
27 fps
N/A
Civilization VI
4.2
0.0
Civilization VI Graph
Avg. FPS
21 fps
N/A
1% Low
14 fps
N/A
0.1% Low
13 fps
N/A
1% Low Delta
23 ms
N/A
0.1% Low Delta
31 ms
N/A
Avg. FPS On Minimum
72 fps
N/A
Avg. Turn Time
8.7 s
N/A
Counter-Strike: Global Offensive
5.2
0.0
CS:GO graph
Avg. FPS
56 fps
N/A
1% Low
23 fps
N/A
0.1% Low
19 fps
N/A
1% Low Delta
26 ms
N/A
0.1% Low Delta
35 ms
N/A
Avg. FPS On Low
121 fps
N/A
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
2.6
0.0
SOTTR Graph
Avg. FPS
15 fps
N/A
1% Low
11 fps
N/A
0.1% Low
7 fps
N/A
1% Low Delta
26 ms
N/A
0.1% Low Delta
85 ms
N/A
Avg. FPS On Lowest
27 fps
N/A
Thermals And Noise
6.8
10
Keyboard Temps Picture
Keyboard Temp While Idle
32 °C (90 °F)
24 °C (75 °F)
Keyboard Temp Under Load
51 °C (124 °F)
24 °C (75 °F)
Fan Noise While Idle
25.0 dBA
N/A
Fan Noise Under Load
43.0 dBA
N/A
Power & Fan Control App
No
No
Performance Over Time
10
0.0
Performance Over Time Graph
Performance Over Time Image
CPU Temp (Cinebench)
87 °C
N/A
CPU Perf. Loss (Cinebench)
0% loss
N/A
GPU Temp (Heaven)
60 °C
N/A
GPU Perf. Loss (Heaven)
0% loss
N/A
Additional Features And Software
Software
Operating System
Windows 10
Chrome OS
Additional Software
Yes
None
Extra Features
RGB Illumination
No
No
Touch Pen
Yes
No
Secondary Display
No
No
Biometrics
Fingerprint Sensor
No
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Lenovo IdeaPad Flex 5 14 (2020)
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Lenovo IdeaPad Flex 5 14 (2020) vs Lenovo Chromebook Duet 5 (2021): Main Discussion
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