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FIU study finds smartwatches overestimate calories burned by up to 25%

Florida International University researchers tested the Apple Watch Series 8, Fitbit Sense 2, Samsung Galaxy Watch 5 and Garmin Forerunner 955 against a Cosmed K5 metabolic device and ECG chest strap during controlled workouts with 58 participants. All four smartwatches overstated calorie burn, with margins of error ranging from 15% to 25%, meaning a reported 200-calorie burn could really be closer to 160-174 calories. Apple Watch was the most accurate, while Samsung and Garmin overestimated more, and Fitbit had enough tracking glitches that some of its data had to be excluded.

Amazfit Cheetah 2 Pro gets first-ever Amazon discount, drops to $399.99

Amazon has cut $50 off the Amazfit Cheetah 2 Pro Smart Watch, bringing it from $449.99 to $399.99, an 11% reduction that marks the first recorded price drop for the device since its April 2026 launch. The running-focused smartwatch features a titanium-alloy case, dual-band GPS, a 1.32-inch AMOLED display, and up to 20 days of battery life in lighter use.

Smartwatch flashlight features on Apple, Pixel and Galaxy watches deserve more credit

Smartwatches from Apple, Google and Samsung all include a basic flashlight feature that simply maxes out the display's brightness and turns it white. Despite mockery of the feature compared to a phone's dedicated camera flash, it proves genuinely useful for quick tasks like finding a dropped pill, precisely because the watch is already on your wrist rather than buried in a pocket or bag.

Garmin Vivoactive 5 hits record-low $173 price on Amazon

Amazon has cut the price of the Garmin Vivoactive 5 to $173, down from its $299.99 list price, marking the lowest price the smartwatch has ever hit. The device offers a 1.2-inch AMOLED display, built-in GPS, extensive health tracking features, onboard music storage, and up to 11 days of battery life.

Pebble Time 2 revives classic smartwatch design with open-source software

The Pebble Time 2 requires initial setup time to pick a watch face from thousands available, drawing on Pebble's legacy library, but proves easy to use afterward thanks to its tall display suited for scrolling menus and reading text. It includes basic health tracking—steps, sleep, and heart rate via a PPG sensor—presented through simple graphs rather than computed scores. The device runs on PebbleOS, now fully open-source after Google released it and the Rebble community maintained it following Fitbit's earlier abandonment of the platform.

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