
GPS drift and heart-rate accuracy against a chest strap reference.
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What we tested this week, what failed, and what is actually worth your money.
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What actually works together, and which ecosystems lock you in.
ReadCharge cycles matter less than heat and sustained time at full...
ReadSensor size, optics and processing decide image quality. The megapixel figure...
ReadThe display is almost always the biggest single consumer of power...
ReadSend the counter-evidence. If it holds up we retest and publish a dated correction on this page.