A gadget is small tool such as a machine that has a particular function. Sometimes, we can refer gadgets to Gizmos. Gizmos in particular are a bit different than gadgets. Gadget in particular is small tool powered by electronic principles (a circuit board). The modern gadgets include mobile phones, smartphones, wearable (watches or bands), game pads etc.
Nowdays, mostly devices have specific operating system which consists of either android or iOS. The android smartphone company are mainly the manufacturers for android gadgets. But not every smartphone make deals in other device than smartphone. On the other side, Apple is the manufacture of all iOS based devices.
Here you can get all the information about new gadgets and their reviews. If you need more information about any of the gadget then you can separately ask for that by either commenting or by sending an email to firstname.lastname@example.org.
You will definitely find awesome comparison to different gadget so that you can have idea about what is best for you.