Samsung takes on rivals with Galaxy S5, Gear 2

-Ladies and gentlemen, the Samsung Galaxy S5. -Samsung introduced its newest smartphone, the Galaxy S5, at Mobile World Congress in Barcelona, and it's taking its battle with Apple to heart. The Galaxy S5 not only contains a fingerprint scanner for unlocking the phone, similar to the iPhone 5S, it also features a heart rate monitor on the flash module. -This is the world's first smartphone equipped with a heart rate sensor. -The applications go beyond health. -All it takes is a simple swipe of your finger to make secured payments. No need to key in your credit card number. -The S5 will come in four colors with a 16-megapixel camera, a Snapdragon quad-core processor, and a 5.1-inch display. It's also safe around kids and in the rain. -Watch your video in the tub, sing along your playlist in the shower, don't worry about the rain. -Though Samsung played it safe by not using a curved screen. -We know that curved screens are definitely in Samsung's plans for the future. In fact, we've seen it before in the Samsung Galaxy Round. They want a surefire hit. They don't want to possibly alienate potential buyers. -Samsung is using its curved screen technology on its newest wearable gadgets, the Gear Fit, a fitness tracker with a touchscreen heart rate monitor and pedometer. -You could stay up to date with instant notifications on your Gear Fit as well. -You can also interact with your Galaxy device, such as rejecting a call, controlling the alarm, and using quick message reply. And these things are impossible with other fitness bands. -The move could be a preempted strike against Apple as rumors build that Apple is developing an iWatch centered around health and fitness. -Samsung is never content to just compete against rivals. They want to absolutely dominate them. -Despite disappointing sales of the Galaxy gear, Samsung is doubling down on smartwatches, introducing the Gear 2 and Gear 2 Neo with Samsung's own Tizen operating system. In addition to the camera and microphone, there is an infrared blaster that will let you control your TV through an app. For more on the newest mobile devices, go to CNET.com. In San Francisco, I'm Kara Tsuboi, CNET.com for CBS News.