Oura Ring 5 review: Size is everything - Engadget

It’s the Oura Ring 4, but 40 percent smaller. Sometimes, the biggest and most notable achievement is also the thing expected to pass unnoticed. The Oura Ring 5 is dramatically smaller than its predecessor without any real compromise to its performance. Battery life is improved, up to a full week on a single charge, despite less room for a power cell. On one hand, it's more or less the same ring I reviewed a year ago in a vastly smaller package, but let's not undersell that achievement. The Oura Ring 5 is 40 percent smaller than its predecessor, a feat that shocked even me when I was first told. Yes, gadgets tend to get smaller, but smart rings were already tiny, and it's a flex to get the size down by that much. The company deserves its flowers for the scale of such a task, especially since it came without compromises on battery life and performance. Naturally, the target market is all those people who love the idea of a smart ring, but found existing models too hefty for their dainty digits. The 5 still isn't likely to pass for a regular ring, but it's far less obviously a smart ring than the 4, and I doubt people will notice it on your hand. Features-wise, there's not much here t