Compare Lenovo Yoga Duet 7i vs Lenovo Yoga C640 13 vs Lenovo Yoga S740 15
Variants
Keyboard
4K
FHD
Connectivity
Ports
2x USB-C (also PD 3.0 + DisplayPort), 1x USB-C, SD-card reader, 3.5mm audio jack
1x USB-C + 2x USB 3.1 Gen1
2x Thunderbolt 3 + 1x USB 3.1 Gen2 + 1x Audio combo + 1x Micro SD card reader
Wireless Connectivity
WiFi6, Bluetooth 5, LTE (optional)
WiFi 5 or WiFi 6 + Bluetooth + optional 4G LTE
WiFi 5 or WiFi 6 + Bluetooth
Construction
Camera | Front
5M IR (fix focus)
Camera | Rear
5M (autofocus)
Colors
Slate Grey or Orchid
Iron Grey
Iron Grey
Form Factor
2-in-1 convertible laptop
Material
Aluminum
Speakers
Dolby Audio Speakers + Smart Amp
User-facing stereo speakers
Dolby Atmos Speaker System (D-cover) with Smart AMP
Dimensions
Bezels
3.47mm sides / 7.19mm top / 12.57mm bottom
Size | Depth
205.5 mm
204.48mm / 8.05 inch
243.33 mm / 9.58 inch
Size | Height
9.19 mm
16.1 mm / 0.63 inch
19.95 mm / 0.79 inch
Size | Width
297.4 mm
306.8 mm / 12.08 inch
357.12 mm / 14.06 inch
Weight
Starting at 798.8 g (1.76 lbs)
1.3 kg / 2.87 lbs
1.9 kg / 4.2 lbs
Display
Brightness
450 nits
300 or 400 nits
500 nits
Display Diagonal
13"
13.3 inch
15.6 inch
Display Type
IPS
IPS
Gamut
100% sRGB
Resolution
2K WQHD (2160 x 1350)
FHD (1920x1080)
FHD (1920x1080) or 4K UHD (3840x2160)
Function
Fast Charging
Rapid Charge
Graphics
Intel UHD Graphics
Integrated Intel HD 620
NVIDIA GeForce GTX1650
HDR
Dolby Vision
VESA DisplayHDR 400
Operating System
Windows 10 Pro or Windows 10 Home
Windows 10
Windows 10
Processor
10th-gen Intel Core i3-10110U, i5-10210U, or i7-10510U
10th-gen Intel Core i3, i5, or i7
9th-gen Intel Core i5, i7, or i9
SIM
Micro-SIM
Touch Screen
Yes
Yes
4K UHD panel only
Performance
Battery Life
10.8 h (MobileMark 2014)
Up to 20 h
Memory | Capacity
4 GB / 8 GB / 16 GB
Up to 16 GB (soldered)
Up to 16 GB
Memory | Type
DDR4
DDR4 2400MHz
DDR 4
Storage
PCIe SSD: 128 GB / 256 GB / 512 GB / 1 TB
Up to 512 GB PCIe SSD
Up to 1 TB
Production
Debut
2020-05-26
2019 IFA
2019 IFA
Model Name
S740-15IRH
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