CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. The Apple Watch Series 6 feels like it has perfected many of ...

Put simply, SpO2 is a measure of blood oxygen saturation. The more oxygen you have in your blood, the higher your SpO2 levels are going to be. Seeing as our bodies need oxygen to survive, we can ...

When Fitbit launched the Charge 4 fitness band, one of the features we found the most interesting was its ability to estimate users' blood oxygen saturation levels through its SpO2 monitor. Users ...

Conor started life in journalism at Digital Spy as a technology reporter, covering everything from Tim Cook's hypnotic dancing to the latest phone launches, before moving to Wareable Media Group in ...

Oppo Watch S was launched in China by the tech firm on Thursday, along with the Oppo Find X9 series. The company also launched the Oppo Pad 5 during its October 2025 event. The new smartwatch will be ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation – and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen can be ...

There’s a new wearable tech metric in town – and it’s all about blood oxygen. It might sound complicated and a little pointless, but pulse ox can reveal conditions like sleep apnea – and help athletes ...

The ECG sensor on the Apple Watch Series 7 (Rs 41,900 onwards) is the most seasoned on any wearable available currently. Remember this line from the launch of the first Apple Watch in 2014: “Apple ...