Samsung on Wednesday officially unveiled the Galaxy S10 family of devices, which includes the Galaxy 10, Galaxy 10 Plus, and the Galaxy S10e, the latter of which is the most affordable of the bunch at $749. Preorders begin on Thursday, February 21, with a launch set for March 8.

Samsung is also offering the Galaxy S10 5G, which will support 5G technology when it launches exclusively on Verizon (for a limited time) in late Q2.

We went hands-on with the Galaxy S10 and its many different versions ahead of today's announcement. For an idea of how these devices perform, you can check out our coverage. Below, you'll find the key features you need to know about before buying the Galaxy S10.

Ultrasonic fingerprint scanner

Your days of unlocking Samsung phones with a rear-facing fingerprint sensor are over. In the Galaxy S10, Samsung has introduced an ultrasonic fingerprint scanner, which is capable of reading the 3D contours of you fingerprint—rather than a 2D image—for improved "anti-spoofing." According to Samsung, the technology features the "world's first FIDO Alliance Biometric Component certification," so you can rest assured your private data will be safe.

Wireless PowerShare

With the Galaxy S10, Samsung wants to share the love by making it possible to share its power. The device supports a Wireless PowerShare feature that allows Galaxy S10 owners to wirelessly charge other Qi-certified devices, including wearables. And if you only have one plug and charger available, you can simultaneously charge the S10 and another device at the same time—because sharing is caring.

Bixby Routines

The nice thing about AI assistants is their ability to automate tasks. Bixby has gained a similar ability in the Galaxy S10. Like Google Assistant and Amazon Alexa, Bixby Routines automates routines based on context and personalization. So, if you say, "Goodnight, Bixby," the software can perform a routine such as turning off a bedroom light, setting a certain temperature, and locking your doors—all without you touching your device.

Triple Camera with Dual OIS

Over the past few years, it's been common to see Samsung devices with a dual-camera setup. Starting with the Galaxy S10, Samsung is moving to a triple-camera arrangement. Each new device features an ultra-wide lens (123 degree field of view), 12-megapixel wide (77 degree field of view), and a 12-megapixel "telephoto" zoom (45 degree field of view), bringing even more flexibility and creative freedom to Samsung's Galaxy S devices.

Dynamic AMOLED Display

Samsung displays are among the best on the market and the Galaxy S10 is raising the bar yet again. The device features an HDR10+-certified display, providing users with incredible detail, dynamic range, and clarity. The display also features technology that will reduce blue light, ensuring that your circadian rhythm isn't affected when you try to fall asleep. As a bonus, the Galaxy S10 comes equipped with a hole punch design, rather than a notch, providing users with a 93.1 percent display-to-bezel ratio.

Performance

Samsung's Galaxy S10 comes standard with 8GB of RAM (Galaxy S10e features 6GB) and 128GB of internal storage. If you really want to ramp things up, Samsung is offering a version of the Galaxy S10 Plus that sports 1TB of storage and 12GB of RAM. Combine that with Qualcomm's new Snapdragon 855 processor, and you have the potential for incredible performance, which in turn will lend itself to vastly improved battery life.

Samsung claims each of its new devices can exceed a heavy day of use. Helping matters is new AI software that can automatically optimize battery, CPU, RAM, and device temperature depending on how you're using your phone—and the software will only improve over time.

Samsung's Galaxy S10, Galaxy S10 Plus, and Galaxy S10e will be available in the U.S. in Prism Black, Prism White, Prism Blue, and Flamingo Pink; the Galaxy S10 Plus will also be available in ceramic black and ceramic white, Samsung said.

The Galaxy S10e starts at $749, while the Galaxy S10 and Galaxy S10 Plus retail for $899 and $999, respectively.