Samsung retains top spot ahead of Apple in the smartphone category, foldable smartphones have experienced huge growth and we go through the rumours ahead of Samsung Galaxy Z Fold 4 launch next month, the tips to keep you safe online at tax time, we look at not one smartwatch but two – the Huawei Watch D which can take your blood pressure and the Withings ScanWatch Horizon which looks like a regular watch, we also road-test the Samsung Bespoke Jet Pro Stick Vacuum and we’ll answer all your questions in the Tech Guide Help Desk.