Gadgets trivia
More Gadgets Trivia
Specs and features of iPhones, consoles, cameras, and wearables.
Gadgets Mini Quiz
Test your knowledge with these top questions!
Used to track steps, what gadget syncs with a phone to show notifications on the wrist?
Smartwatches use an internal accelerometer to track steps by measuring the frequency and intensity of a wearer's wrist movements.
Using red and infrared light to measure blood oxygen levels, what sensor is commonly found in modern smartwatches?
Oxygenated blood absorbs more infrared light, while deoxygenated blood absorbs more red light. The sensor uses this difference to calculate blood oxygen saturation.
Designed by Google for wrist technology, what platform was renamed from a title featuring the word Android in 2018?
Google renamed Android Wear to Wear OS to reflect its compatibility with iPhones, as one in three users of the technology also owned an iOS device.
Marketed as a "wrist computer" in the late 1990s, the Ruputer was a pioneering digital gadget released by which Japanese company?
The Ruputer featured a 16-bit processor and a miniature joystick for navigation. It was marketed outside Japan as the OnHand PC and could run software written in C.
Using green lights on the back of the case, what vital sign do most smartwatches track?
Smartwatches use green LEDs for photoplethysmography, shining light into the skin to detect blood volume changes with each heartbeat, enabling non-invasive heart rate monitoring.
Long before modern touchscreens, which electronics company popularized the calculator watch in the 1980s?
Casio released the world's first calculator watch, the C-80, in 1980, featuring a 10-digit LED display and basic arithmetic functions on the wrist.
Modeled after a traditional winding knob, what is the scrolling dial on an Apple Watch called?
The Digital Crown on the Apple Watch emulates the mechanical crown of traditional watches, enabling precise scrolling, zooming, and menu navigation with haptic feedback for a tactile experience.
Developed by Google, what smartwatch operating system powers the Pixel Watch?
Wear OS, originally launched as Android Wear in 2014, was rebranded by Google in 2018 to support non-Android devices as well.
Known for its e-paper screen, which early smartwatch brand raised over $10 million on Kickstarter?
Pebble's 2012 Kickstarter campaign raised $10.3 million from nearly 69,000 backers, making it the platform's most-funded project until 2015 and highlighting the e-paper screen's appeal for battery efficiency.