Razer Viper V3 Pro VS Logitech G Pro X Superlight
Verdict BUY IT BUY IT
The Reality Independent testing reported by PC Gamer confirmed that Razer's FrameSync technology does what the company describes: the sensor's polling is genuinely synced to the reporting cycle, not just marketing language for a conventional high-polling-rate sensor. The testing did note some very small periodic timing intervals that weren't perfectly uniform, though reviewers concluded they weren't significant enough to undermine the overall claim. Some independent reports separately note a distinct, narrower issue -- a 'DPI downshift' quirk affecting some Razer mice -- that is unrelated to the FrameSync claim itself. The under-63-gram weight figure itself is real and independently confirmed by multiple reviewers and retailers -- roughly 25% lighter than Logitech's own standard PRO Wireless mouse. But 'lightest wireless gaming mouse' as an absolute, category-wide claim needs a caveat: competing mice, like the Razer DeathAdder V3 Pro, land in the same weight class without using a perforated honeycomb shell. Reviewers characterize the Superlight's real distinction more precisely as the lightest wireless gaming mouse that doesn't rely on a honeycomb design to hit that weight, not the single lightest wireless gaming mouse on the market outright.
SHORT ANSWER
Razer Viper V3 Pro: Razer's claim that FrameSync technology syncs its mouse sensor to the display's polling/refresh cycle is backed by independent testing, which confirmed the core mechanism works as described, with only minor timing irregularities noted.
Logitech G Pro X Superlight: The G Pro X Superlight's sub-63-gram weight is real and independently confirmed, but calling it 'the lightest wireless gaming mouse' overstates it slightly -- competing mice like the Razer DeathAdder V3 Pro land in the same weight class without a honeycomb shell.