Charming the world with its 4-inch Super AMOLED display, the Galaxy S catapulted Samsung to the top tier of Android vendors. Google used it as the basis for its Nexus S, which debuted NFC and Android 2.3.
The HTC G1 "Dream" was no iPhone 3G, but the original Android phone still impressed with its 3-megapixel camera, hide-away keyboard, and open development environment. Aimed at geeks, it was surprisingly popular among general consumers.
Samsung's Galaxy S II was a global superstar. Thin (0.33-inch) and light (4.1-ounce), the 4.3-inch Super AMOLED Plus device was one of the first dual-core phones, featuring a 1.2GHz Exynos capable of 1080p recording.
Based on the Galaxy S II, Samsung's Google-branded Galaxy Nexus was notable for the 1280 x 720 resolution of its 4.65-inch, Super AMOLED display. Mix in Android 4.0, and "pure Google" never looked better.
With its 0.28-inch profile, the Motorola Razr is still one of the thinnest smartphones around. Now available with Android 4.0, the 1.2GHz, dual-core device sports a 4G LTE radio and a 4.3-inch, qHD-resolution Super AMOLED display.
Available in an international quad-core Tegra 3 version and an American dual-core Snapdragon S4 model, the One X may well spur an HTC comeback. The 1.5GHz, 4.7-inch phone offers 720p resolution and a souped-up, 8-megapixel camera.
Motorola's macho slab was the first Android smash hit. The Droid featured breakthroughs like a 3.7-inch, 854 x 480 display, 5-megapixel camera, and Android 2.0, which tapped the multitasking talents of its Cortex-A8 processor.
The first Google-branded phone seduced techies with its 1GHz Snapdragon, dual mics, and 3.7-inch AMOLED display. The HTC-built Nexus One had mediocre sales, but Verizon shipped a nearly identical Droid Incredible to huge success.
HTC's Evo 4G stood out with its 4G WiMAX radio, 4.3-inch touchscreen, HDMI port, WiFi hotspot, and a webcam to go with its 8-megapixel camera. Big and brassy, it helped Sprint step back from the abyss.