almost all tablet computers can access the internet using wi-fi, and many can use mobile phone networks like 2g, 3g, 4g, and 5g. like smartphones, many tablets have sensors such as a camera and a microphone. other features tablets have are high definition, anti-glare (with less reflection) displays, a bluetooth radio (to connect to printers and other devices), flash memory, and cloud storage services to back up information on the tablet and synchronize data.