Razer DeathAdder V4 Pro vs Razer Viper V3 Pro

A spec-by-spec look at two of the gaming mouses competitive players cross-shop. Razer Viper V3 Pro is the lighter mouse (54 g vs 57 g) — the edge for flick-heavy aim, fast wrist play, and less fatigue over long sessions. The full breakdown — and which to buy for your style — below.

Specs compared

Which should you buy?

• ▸Razer Viper V3 Pro is the lighter mouse (54 g vs 57 g) — the edge for flick-heavy aim, fast wrist play, and less fatigue over long sessions.
• ▸Razer DeathAdder V4 Pro is ergonomic, Razer Viper V3 Pro is ambidextrous. Ambidextrous suits fingertip/claw and lighter grips; ergonomic fills a palm grip — try your grip style first, it outweighs the spec sheet.
• ▸Razer Viper V3 Pro is the more affordable class — Premium vs Flagship — so it's the value pick if the shape suits your hand. Street prices move; the live price is on the buy link.
• ▸Focus Pro 45K and Focus Pro 35K are both flawless modern sensors — tracking is identical for any real input, and the DPI/IPS numbers they differ on are ceilings no hand reaches. The sensor won't decide this; pick on shape and weight.
• ▸On our measured best-built composite — independent click latency, sensor integrity, build/QC, weight and polling-link, scored price-aside — they're effectively level (98 vs 98/100). Both are flawlessly built; the choice is shape and weight, not engineering.
• ▸Razer DeathAdder V4 Pro lasts noticeably longer between charges — 150 hr vs 95 hr at 1000 Hz (4K/8K polling and RGB cut both sharply). Not an aim factor, just fewer charge cables in your week.

Specs are sourced (each product carries a source + verified date in our catalog); buy links are affiliate links to your regional store — AimBench may earn a commission at no cost to you. Live pricing shows on the retailer page.

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