Samsung Introduces Its Heart-Rate-Monitoring, Fingerprint-Scanning Galaxy S5 Smartphone

During its presentation Samsung introduced the Ultra Power Saving Mode built into the S5. Once the battery is down to critical levels, the power saving mode kicks in, turning the screen to a more battery efficient black and white and shutting down all features except crucial ones like texting and calls.

If the S5's batter gets down to 10%, Samsung said, Ultra Power Saving Mode will keep it running for another 24 hours.