The electronics titans square off in a tangled tale of mobile technology, centered on Apple's iPhone
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As with the original flagship, Samsung is counting on the midrange phone's fingerprint scanner, heart-rate monitor, and extra apps to stand out.
Pricing not available
A limited-time promotion sees Sony giving away hundreds of dollars worth of movies, music, and apps for the Xperia Z1, Z1S, and Z2.
Check out our video review of the Sony Xperia M2. It's an affordable Android phone with a 4.8-inch display, quad-core processor and 8-megapixel camera.
The LTE variant of the phone is available through Sony's Web site, though only the black model is currently in stock.
The Sony Xperia Z1 Compact is a 4.3-inch waterproof Android phone, with the same supercharged specs as its flagship big brother.
The Sony Xperia Z2 has a great 20.7-megapixel camera. We took it for a spin to see what it's capable of.
With a brilliant screen, great camera and gorgeous design, the Sony Xperia Z2 provides everything you'd expect from a top-end phone. Check out our video review.
Waterproof, a sharp display, and 4G LTE: and now it'll be in the US, with pre-orders starting tomorrow.
Although the Sony Xperia M2 looks pretty slick, it's let down by its low resolution display and its old version of Android, which makes even its affordable price way too high. For much less money, you could snap up the Moto G or spend a little more and pick up the older Xperia Z with its full HD display and waterproof design.
The company says that the devices will run KitKat as standard and include some updates to native apps.