Which is better for fast FPS games?

The DeathAdder V3 Pro is the lighter mouse at 63 g, which helps with quick flicks and long sessions. The G703 is a solid alternative if you prefer its shape and lower price.

Which has longer battery life?

The DeathAdder V3 Pro is rated up to 90 hours and charges over USB-C. Logitech does not list a battery figure for the G703 in the specs shown.

Is the DeathAdder V3 Pro worth the extra money?

At $64.60 versus $49.99, you pay about $15 more for 63 g weight, 90-hour battery life, and Bluetooth. That is worth it if you value low weight and flexibility; otherwise the G703 saves money.

Which works with more devices?

The DeathAdder V3 Pro lists Windows compatibility, Bluetooth, and pairing with two compatible Razer peripherals. The G703 is listed as wireless with no Bluetooth or multi-device pairing.

Which has more buttons?

The G703 has 6 programmable buttons; the DeathAdder V3 Pro has 5. Both let you remap buttons through their software.

Which is better for a glass desk?

The DeathAdder V3 Pro is specified to track on clear glass at least 2 mm thick. The G703's supported surfaces are not listed, so use a mousepad with it.

Logitech G703 Lightspeed vs Razer DeathAdder V3 Pro

Both are lightweight wireless gaming mice with optical sensors and programmable buttons, but they suit different hands and budgets. The Logitech G703 Lightspeed is the cheaper pick at $49.99 as of November 2, 2026, while the Razer DeathAdder V3 Pro is $64.60 at eBay as of November 7, 2026. Buy the G703 for a familiar right-handed shape and lower price; buy the DeathAdder V3 Pro for a much lighter 63 g body and up to 90 hours of battery life.

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