There are more options this year if you're looking for an Apple Watch. How do the current models compare? We spell out all ...

In this system, the implanted computer chip would not just sit on the brain, but become part of the brain. Using a technology ...

There are forearm-based heart rate monitors, wrist-based heart rate monitors, smartwatches, fitness trackers and even headphones that can track your BPM too, but generally speaking, chest straps are ...

Your power banks's capacity won’t neatly map onto your charging needs, but finding the right size doesn’t have to be ...

Lithium ion batteries are all around you because they're lightweight, powerful, and rechargeable. However, when damaged, overcharged, or improperly stored, they can overheat, catch fire, or even ...

The Battery Capacity History section shows how the capacity has changed over time. On the right is Design Capacity, or how ...

The Kavian platform sets a new battery benchmark: 4,000 cycles with 83% charge retention using a clean, dry-printing process.