Lenovo has announced several Yoga Series devices which includes Yoga S940, Yoga A940, Yoga C730 and Yoga Mouse.
Pricing and availability:

•  The Yoga A940 starts $2,349.99 (₹ 1,65,000). It will be available through Lenovo’s online store and Best Buy starting April.
• The Lenovo Yoga S940 will start at $1,499.99 (₹ 1,05,695 approx.) and is expected to be available starting May 2019.
• The 15-inch Lenovo Yoga C730 with AMOLED is expected to be available in select markets starting March 2019. 
• The Yoga Mouse starts at $69.99 ( ₹ 4,930 approx.) and is expected to be available starting in June.

Lenovo Yoga S940

It is an ultra-slim laptop which comes with optional AI features which can automatically filter out most ambient noise and blur out distracting backgrounds during video calls. Additionally, its AI powered sensor can detect when you are not in front of the screen and auto lock the display.
The Yoga S940 features in Glance by Mirametrix AI powered attention-sensing software with provides extra security. It has snap window which allow you to look from main laptop display in to external screen / monitor. It supports optional 4K HDR display with up to 500nits brightness.
The Yoga S940 is the world’s first laptop with Contour Glass that wraps around its bezels, reducing the look of its already razor-thin bezels for streamlined design. The laptop has DOlby Vision and Dolby Atmos Speaker System with smart audio amplifiers for cinematic-like quality experience.
It has built-in IR camera for hands free login using Windows Hello. It has Amazon Alexa, Microsoft Cortana and supports new simultaneous language transcription and translation. The battery inside is claimed to offer up to 15 hours of backup on FHD.
The Lenovo Yoga S940 is just 12.2mm thin and weighs 1.2 kg. It runs on Windows 10 and is powered by up to Intel Core processor with up to 16GB LPDDR3 memory options. The laptop offers up to 1TB PCIe SSD storage space.

Lenovo Yoga S940 Specifications

• Dimensions: 319.3 x 197.4 x 12.2 mm
• Weight: 1.2 Kg
• Color: Iron Grey
• Display: 14-inch IPS HDR display with Dolby Vision. 4K (3840 x 2160) pixels resolution
• Processors: 8th Generation Intel Core i7
• Graphics: Intel Integrated
• Memory: 8GB / 16GB DDR4
• Storage: 128GB / 256GB / 512GB PCIe SSD
• Operating System: Windows 10 Home
• Camera: Fixed-focus CMOS camera with 2.0 Interface
• WLAN: 1 x 2 WiF 802.11ac, 2 x 2 Wi-Fi 802.11 ac
• I/O Ports: 2 x Type-C (Thunderbolt), Type-C DC-in + USB 3.1 Gen1, Audio Jack
• Features: Cortana with Far-Field Microphone, Lenovo Smart Assist, Optional IR camera

Lenovo Yoga A940

It is specially for artists and designers. The Yoga A940 is an all-in-one desktop running on Windows 10 OS. It has large 27-inch display with optional 4K IPS display settings with Dolby Vision.
The device has rotating hinge that enables the display to tilt to a comfortable 25-degree drafting mode, for flexibility and stability when drawing, sketching or annotating with digital pen.
The Lenovo Yoga A940 features in Precision Dial, a controller that’s tailor made for designers, photographers, videographers to make more precise selections and adjustments. According to adjustments, dial can be placed at left or right and is optimized for Adobe Illustrator, Photoshop, Lightroom, Microsoft Word, Excel and PowerPoint.
This all-in-one can be configured with up to 8th Geneartion Intel Core i7 processor, AMD Radeon RX560 GPU, up to 32GB DDR4 memory and up to 512GB PCIe SSD or 2TB SATA HDD storage space. It also houses built-in front facing speakers and supports Dolby Atmos Speaker system for rich audio.

Lenovo Yoga A940 Specifications

• Dimensions: 635.7 x 475.3 x 227.7 mm
• Weight: 14.6 Kg
• Color: Iron Grey
• Display: 27-inch IPS display with Dolby Vision. QHD (2560 x 1440) or 4K (3840 x 2160) pixels resolution
• Processors: 8th Generation Intel Core i7
• Graphics: AMD Radeon RX 560
• Memory: 8GB / 16GB / 32GB DDR4
• Storage: 1TB / 2TB SATA HDD or 128GB / 256GB / 512GB PCIe SSD
• Operating System: Windows 10 Home
• WLAN: 2 x 2 Wi-Fi 802.11 ac
• I/O Ports: 4 x USB 3.0, 2 x USB 2.0, USB 3.1, Thunderbolt, 3-in-1 card reader, RJ45 LAN, Audio Jack
• Features: Cortana with Far-Field Microphone, Lenovo Smart Assist, Optional IR camera

Lenovo Yoga C730

The Yoga C730 is meant for entertainment. It has JBL speakers with Dolby Atomos. It is a 15-inch 2-in-1 convertible laptop which can be configured with up to 4K AMOLED displays.
The AMOLED screen brings vivid viewing experience with enhanced color clarity and contrast for high quality resolution. It also emits less harmful blue light, making it easy on the eyes.
It has 8th generation Intel Core i7 processors, Windows Ink for digital pen input and Windows Hello for secured login. Additionally it has Alexa and Cortana voice assistance for added usability.

Lenovo Yoga C730 Specifications

• Dimensions:
  • Front Edge: 360 x 249 x 16.95 mm
  • Back Edge: 360 x 249 x 17.15 mm
• Weight: 1.89 Kg
• Color: Iron Grey
• Display: 15.6-inch Samsung AMOLED display. 4K (3840 x 2160) pixels resolution
• Processors: 8th Generation Intel Core i7
• Graphics: Intel Integrated
• Memory: 16GB DDR4
• Storage: 512GB PCIe SSD
• Operating System: Windows 10 Home
• Camera: Fixed-focus CMOS camera
• WLAN: 2 x 2 Wi-Fi 802.11 ac
• I/O Ports: Thunderbolt 3 USB-C, 2 x USB 3.0, Full-size HDMI, DC-in, Audio Jack
• Features: Cortana with Far-Field Microphone, Fingerprint reader, Windows Hello enabled for Active Pen 2

Lenovo Yoga Mouse and Laser Presenter

Lenovo also introduced two accessories into one and has designed its latest generation Yoga Mouse with Laser Presenter. It offers up to 1600 DPI for high precision tracking on nearly any flat surface. It also acts as fully functional laser presenter.