Chinese smartphone brand Infinix is no stranger to innovative concepts, and at MWC 2025, the company is showcasing technology that looks to the sun for power. Among its most eye-catching reveals are a solar-powered smartphone and a solar-charging phone case, both currently in the concept phase but already functional in demonstration units.
In addition, Infinix is introducing the second generation of its color-changing E Ink phone, taking personalization to a whole new level with AI-powered color adaptation.
SolarEnergy-Reserving Technology: A Phone That Charges with Sunlight
Infinix’s SolarEnergy-Reserving technology is designed to provide an alternative charging solution by integrating perovskite solar cells into smartphones and accessories. Unlike traditional silicon solar cells, perovskite cells are thinner, cheaper to produce, and more adaptable for consumer electronics.
The system also features Maximum Power Point Tracking (MPPT), a technology that optimizes power generation while preventing overheating—an essential feature for any device exposed to direct sunlight.
Key Features of Infinix’s Solar Charging Concept
The built-in solar panel on the phone’s back charges the device passively when exposed to sunlight. The solar-charging phone case transfers power to the phone via small contact points on the side, allowing users to attach or remove it as needed. The charging speed reaches up to 2W, which, while not a replacement for traditional charging, extends battery life when the phone is idle.
The modular case concept may be even more practical than the solar-integrated phone itself, allowing users to swap between a regular case for nighttime use and the solar case when additional power is needed. This could be particularly useful for power outages, outdoor trips, or emergency situations.
Second-Gen Color-Changing E Ink Phone: More Customization, AI Integration
Infinix is also showcasing a next-generation color-changing E Ink phone, which builds on last year’s model with significant improvements.
This version now runs on the phone’s internal battery, unlike its predecessor, which required plugging in for color changes. It offers more customization, allowing users to choose from a wider range of patterns and color palettes. The device also features AI-powered adaptation, enabling it to automatically change its back panel colors based on the weather or a chosen image for inspiration.
The AI-driven customization makes the phone’s appearance dynamic and interactive, adding a futuristic element to smartphone aesthetics.
Final Thoughts: A Glimpse into the Future of Smartphone Innovation
With solar-powered charging technology and E Ink color-shifting back panels, Infinix is proving that smartphone innovation isn’t just about raw performance but also about sustainability and personalization.
While both concepts remain in the prototype stage, their potential is clear. A solar-charging phone case could offer real-world utility, and AI-driven E Ink customization could redefine phone aesthetics. As MWC 2025 continues, all eyes are on Infinix to see if these futuristic ideas will make their way into consumer-ready devices soon.
