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Lenovo’s Flip and Yoga Solar PC were proof-of-concept laptops shown at Mobile World Congress (MWC) 2025—not announced products for sale. The Flip explores an outward-folding screen that expands a compact laptop into a taller workspace; the Yoga Solar PC explores adding solar energy capture to a laptop. Lenovo disclosed concept specifications and solar-performance claims, but its announcements give neither device a retail launch date.
What Lenovo announced
Lenovo’s MWC 2025 overview presented the ThinkBook “codename Flip” AI PC and Yoga Solar PC alongside other devices and proofs of concept. The company also announced production laptops at the event, but those are distinct from these two concepts.
The ideas address different challenges: Flip explores how a flexible display might provide more screen area and different ways to work, while Solar PC explores harvesting sunlight to supplement a laptop’s energy. The announcements provide concept details, not a basis for comparing either one with a retail laptop on price, warranty, standardized battery life, or long-term durability.
How the ThinkBook Flip concept works
Lenovo describes the Flip as an AI PC concept with an 18.1-inch outward-folding OLED display. It is designed to shift from a compact 13-inch laptop into a vertically expanded workspace. Lenovo also describes split-screen software intended to run applications side by side.
#1 Best Overall
- RELIABLE PERFORMANCE FOR EVERYDAY WORK: The Intel N150 processor works with 8GB LPDDR5 memory and 128GB UFS 2.2 storage to support web browsing, email, document editing, online classes, video streaming, and routine multitasking. Integrated Intel Graphics provides dependable visuals for business, education, and everyday home use.
- CLEAR 15.6-INCH FULL HD DISPLAY: The 1920x1080 anti-glare display offers a spacious view for documents, presentations, research, online learning, and entertainment. Its 250-nit brightness, 88% active-area ratio, and TÜV Rheinland Low Blue Light software solution support comfortable viewing during extended work or study sessions.
- LIGHTWEIGHT AND DURABLE DESIGN: Starting at only 3.42 lbs and measuring 0.70 inches thin, this Arctic Grey Lenovo laptop travels easily between home, school, and the office. MIL-STD-810H testing adds everyday durability, while the full-size keyboard includes a dedicated Copilot key for convenient access to AI assistance.
- MODERN CONNECTIVITY AND PRIVACY: Wi-Fi 6 and Bluetooth 5.2 provide reliable connections for networks and accessories. Two USB-A ports, USB-C with Power Delivery and DisplayPort, HDMI 1.4, an SD card reader, and a 3.5mm audio jack support displays and peripherals, while the 720p camera includes a physical privacy shutter.
- READY FOR BUSINESS AND EDUCATION: Windows 11 Home and Microsoft 365 Personal provide familiar tools for documents, communication, coursework, and daily productivity. A 47Wh battery supports mobile workflows, while the included 65W power adapter enables efficient charging. Dolby Audio stereo speakers and dual-array microphones enhance online meetings and classes.
Five modes
- Clamshell: conventional laptop tasks.
- Vertical: reviewing documents in an expanded, taller workspace.
- Share: collaboration.
- Tablet: creative work.
- Read: reading.
Lenovo’s business-device announcement lists an Intel Core Ultra 7 processor, 32GB of LPDDR5X memory, PCIe SSD storage, Thunderbolt 4 ports, and a fingerprint reader. It also describes a three-layer illuminated Smart ForcePad dashboard with numeric keys and media controls. These are specifications Lenovo disclosed for the concept; they do not establish that a shipping configuration exists.
What the Yoga Solar PC concept claims
The separate Yoga Solar PC concept integrates solar cells into the laptop. Lenovo says its Back Contact Cell design places mounting brackets and gridlines at the back of the cells. A Dynamic Solar Tracking system measures panel current and voltage, while a Solar-First Energy system adjusts charging settings to prioritize harvested energy.
Rank #2
- RELIABLE EVERYDAY PERFORMANCE – Powered by an Intel N150 quad-core processor for smooth web browsing, document editing, video streaming, online classes, email, and light multitasking.
- CLEAR 15.6-INCH FHD DISPLAY – Enjoy sharp visuals on the Full HD anti-glare screen, designed for comfortable viewing while studying, working remotely, attending video calls, or watching entertainment.
- FAST DDR5 MEMORY AND SSD STORAGE – 8GB DDR5 RAM supports responsive everyday computing, while the 128GB PCIe SSD provides quick startup and convenient storage for essential applications and files.
- DESIGNED FOR WORK AND SCHOOL – Windows 11 Home, a full-size keyboard with numeric keypad, and a 720p HD webcam with privacy shutter make this Lenovo laptop ready for assignments, spreadsheets, meetings, and remote learning.
- MODERN WIRELESS AND WIRED CONNECTIVITY – Wi-Fi 6 and Bluetooth 5.2 help keep you connected, while USB-A, USB-C, HDMI, an SD card reader, and an audio jack support everyday accessories and external displays.
Lenovo’s Yoga announcement attributes a solar conversion rate of more than 24% to the concept’s panel and cell design. It also claims that 20 minutes of direct sunlight can provide up to one hour of video playback. Both are company-stated concept figures, not results from an independent test; the announcement does not provide a test protocol or independent measurements. Lenovo lists the concept as 15 mm thick and 1.22 kg.
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Lenovo calls it the “world’s first ultraslim solar-powered PC,” but that is the company’s promotional description, not an independently established comparison. The cited announcement also describes a separate Solar Power Kit for Yoga proof of concept with a detachable USB-C solar panel. That does not establish that the kit—or a generic USB-C solar panel—is compatible with the Yoga Solar PC.
Rank #3
- Processor & Performance: AMD Ryzen 7 7735HS (8C/16T, up to 4.75GHz) | Integrated Radeon 680M Graphics
- Display & Audio: 16" WUXGA (1920x1200) IPS Anti-Glare | FHD 1080p IR Camera + Privacy Shutter | Dolby Atmos | HARMAN Stereo Speakers | Dual Microphones
- Memory & Storage: 16GB DDR5 | 1TB PCIe NVMe SSD + 500GB Ext HDD
- Connectivity: Wi-Fi 6E (2.4/5/6GHz) | Bluetooth 5.3 | 2x USB-C (PD 3.0 + DP 1.4) | HDMI 2.1 (4K@60Hz) | RJ-45 Ethernet | 2x USB-A (5Gbps + 10Gbps Always On) | 3.5mm Combo
- Security & OS: TPM 2.0 | Fingerprint Reader (Power Button) | IR Facial Recognition | Windows 11 Pro. Backlit English EU Keyboard | Thin 16" Black Chassis | Ideal for Business, Education, Hybrid Work
What is known—and not known—about buying one
The cited Lenovo announcements identify both laptops as concepts or proofs of concept and state no retail launch date. They do not establish that either can be ordered. Readers interested in solar charging can look at the general category of portable USB-C solar panel chargers, but that is not a Lenovo recommendation, and compatibility with the Yoga Solar PC concept is unverified.
For a laptop to buy, treat Lenovo’s production ThinkPad and ThinkBook models announced at MWC as separate products from the Flip concept. Check Lenovo’s current product listings for present-day availability rather than assuming that a concept has become a retail model.
Quick Recap
Rank #4
- ⚡ POWERFUL PERFORMANCE FOR EVERYDAY TASKS: Intel N150 quad-core processor (up to 3.6GHz turbo) with 8GB LPDDR5-4800 RAM delivers smooth multitasking for web browsing, document editing, video streaming, and light productivity. 128GB UFS 2.2 storage provides fast boot times and quick app launches for your essential programs and files.
- 🖥️ IMMERSIVE 15.6" FHD DISPLAY: Crystal-clear 1920x1080 Full HD resolution with 88% screen-to-body ratio maximizes your viewing area. Anti-glare coating reduces eye strain during extended use, while Dolby Audio-enhanced stereo speakers deliver rich, clear sound for entertainment and video calls.
- 🎒 ULTRA-PORTABLE & DURABLE DESIGN: Weighing just 3.42 lbs (1.55 kg) with a slim 0.70" profile, this laptop easily fits in any bag for on-the-go productivity. MIL-STD-810H military-grade tested for durability. HD 720p camera with privacy shutter protects your privacy when not in use.
- 🌐 SEAMLESS CONNECTIVITY: Wi-Fi 6 (802.11ax) and Bluetooth 5.2 ensure fast, reliable wireless connections. Versatile ports include 2x USB-A, 1x USB-C (with Power Delivery and DisplayPort), HDMI 1.4, SD card reader, and headphone jack - connect all your devices and peripherals with ease.
- 💻 READY TO USE OUT OF THE BOX: Pre-installed Windows 11 Home and Microsoft 365 Personal get you started right away with the latest features and productivity tools. ENERGY STAR 9.0 certified and TÜV Rheinland Low Blue Light certified for reduced eye strain during extended computing sessions.
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