Nexus smartphones by and large have stock Android OS installed, updates arrive faster than comparable carrier devices, are relatively easy to unlock and root (developer-friendly), and are at a competitive price point.
Yes, as it is a smartphone.
The Nexus One has the bigger screen at 3.7 inches. The iPhone 3GS had a 3.5 inch screen.
The Nexus One used to be on sale directly through Google, but you can still find used and new (unopened) versions online, and are still functional.
A Phone it's manufactured by htc but branded by google and in my opinion it's the best smartphone in the world
No, you cannot use a Verizon SIM card on a Nexus One. It only worked on GSM networks, which was AT&T and T-Mobile.
The HTC One is a very popular smartphone. Nexus 4 is another very popular phone. You may have to pay more then intended but these phones have the latest technology.
The Nexus Series is a good Low-End Smartphone for its money. It seems, although they have a lot of manufacturing issues because of the way they were produced. To get more value for your money, The Newer, iPhone Series, is worth trying out.
The Nexus One is a smartphone from Google that uses the Android open source mobile operating system. The device is manufactured by Taiwan's HTC Corporation, and became available on January 5, 2010.
The initial release of the 2012 Nexus 7 did not have the camera app installed, but future OS updates should have installed the app. If one still isn't installed on your Nexus 7, you can download a third party camera app, and it should function the same way as a smartphone camera app. The 2013 Nexus 7 should have the camera app pre-installed.
Released in November 2012, the Nexus 4 is Google's latest pure-Android powered smartphone. It has been lauded for its low pricepoint compared to other unlocked phones, its specs, and ease of software updates (no restrictions from a carrier or manufacturer).
That really depends on what you want and value in a smartphone, since it is very subjective. However, the Samsung Nexus S is slower than an iPhone 4S but a bigger resolution, but in general, the iPhone 4S seems better.
Well, for the time its only Limited to certain number of devices i.e. Nexus, Motorola and few other devices but I would say things will change accordingly in future. For the time I would say keep your hands over the Check for update button.