Color isn’t essential in an e-reader, but let’s be honest, it’s a nice perk that can bring digital books, magazines, comics, cookbooks, and other publications to life. The catch is that color ebook readers tend to be substantially pricier, which makes today’s deals stand out. Right now, the Kindle Colorsoft (16GB) and Kobo Libra Colour are matching their lowest prices to date, with the Amazon e-reader going for $169.99 ($80 off) at Amazon and Best Buy, and the Libra Colour going for $199.99 ($30 off) via Rakuten’s online storefront.

At their core, both are excellent e-readers with 7-inch, 300ppi E Ink displays, which drop to 150ppi when viewing color. The Colorsoft’s display is slightly more vibrant in most instances, but the difference isn’t dramatic. Each also offers IPX8 water resistance, so you don’t need to worry about spills and can comfortably read in the bath or by the pool.

Which one makes more sense for you largely depends on where you buy your books, how much storage you need, and whether you like to take notes. The Colorsoft is great if you’re heavily embedded in Amazon’s ecosystem, as buying and accessing Kindle books is intuitive and doesn’t require any sideloading. As the more affordable option in Amazon’s lineup, the standard Colorsoft delivers a nearly identical reading experience to the Signature Edition, and it supports Amazon’s “Send to Alexa Plus” feature, which lets you send notes or documents to Amazon’s AI-powered assistant for summaries, to-do lists, reminders, and more. The downside is that it lacks wireless charging and an auto-adjusting front light — which are standard on the step-up model — and comes with 16GB of storage instead of 32GB.

That said, if I didn’t already own so many Kindle books, the Libra Colour would be my pick. It offers double the storage at 32GB and includes intuitive physical page-turn buttons. You can also write notes while reading, given that it offers stylus support, and it includes built-in notebook templates, as well as the ability to convert handwriting to typed text. It also supports EPUB and a wider range of file formats, and lets you save articles for offline reading with Instapaper. And it also offers adjustable warm lighting, which makes reading at night a little easier on the eyes.

A humanoid robot is now rallying tennis shots with a human in real time. It runs without a script or remote control, so it can react instantly on a tennis court.

The robot stands about 4 feet tall, giving it a compact, human-like frame.  Galbot Robotics released a video showing its robot going shot-for-shot with a human player. The system behind it is called LATENT and runs on the Unitree G1.

And it is not just returning the ball. It is moving, adjusting and competing during live play.

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CHINA’S COMPACT HUMANOID ROBOT SHOWS OFF BALANCE AND FLIPS
 

Why this tennis robot is different from others

Most athletic robots you have seen follow scripts. They perform pre-programmed actions or rely on a remote control. This one operates differently. It reacts to a human opponent in real time, tracking fast-moving balls, shifting across the court and returning shots with surprising accuracy. It also adjusts to changing trajectories and unpredictable shots during rallies. Researchers say it can sustain long rallies with millisecond-level reactions and full-body coordination. That marks a major step forward.

How the AI learned to play tennis

Training a robot to play tennis is extremely complex. Tennis involves:

• Tennis ball speeds can reach up to 67 miles per hour
• Split-second racket contact
• Constant movement across a large court

Capturing complete human gameplay data is difficult. So the researchers used a different method.

Training the robot using motion fragments

Instead of recording full matches, they focused on small segments of movement:

• Forehands
• Backhands
• Side steps

They gathered about five hours of motion data from five players. The sessions took place on a compact 10-by-16-foot court. That space is more than 17 times smaller than a standard tennis court.

RESTAURANT ROBOT GOES HAYWIRE, SENDS TABLEWARE FLYING BEFORE BREAKING OUT IN DANCE MOVES
 

How the robot plays tennis during live rallies

The system first learns individual movements. Then it combines them into coordinated sequences. That allows the robot to:

• Move toward the ball
• Strike it with control
• Recover and reposition

To improve performance, the team trained the model in simulation. They varied physical conditions such as mass, friction and aerodynamics. This helps the robot adapt to real-world unpredictability. As a result, the system responds dynamically instead of following a fixed routine. 

How well does it actually perform against humans?

In testing, the system achieved up to 96% success on forehand shots in simulation. In real-world trials, the robot can sustain rallies with a human and consistently return the ball across the net.

Watching the demo, it appears competitive. At times, the robot places shots away from the human player. That suggests more than a simple reaction. It points toward early forms of decision-making.

There are still limits. The robot can look unstable at times. Its motion is not yet as fluid as a trained athlete. High or unpredictable shots may still present challenges. Even so, the progress is clear.

Why this matters beyond tennis

This breakthrough goes far beyond tennis. It shows how robots can learn complex human skills without perfect data. The same approach could apply to:

• Football
• Badminton
• Industrial work
• Search and rescue

Any task that lacks complete motion data could benefit from this method. That is the bigger picture.

WORLD’S FASTEST HUMANOID ROBOT RUNS 22 MPH
 

Could robots compete with humans one day?

The path forward is becoming clearer. Today, the robot rallies. Next, it competes. In time, robots could train with or challenge professional athletes. Exhibition matches between humans and machines may become part of the sport. That future no longer feels far away.

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Kurt’s key takeaways

This demo shows how quickly things are changing. Robots are no longer stuck following scripts. They can now react, adjust and compete in real situations. What used to feel far off is starting to show up right in front of us.

So here is the question: If a robot could outplay you on the court, would you still want to compete, or would you rather train with it? Let us know by writing to us at Cyberguy.com.

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