Which is better for FPS games?

The DeathAdder V4 Pro. It weighs about 56g, has a 45,000 DPI sensor and polls up to 8,000Hz, while the Aerox 9 tops out at 18,000 DPI and 1,000Hz.

Which is better for MMOs?

The Aerox 9. Its 18 programmable buttons let you bind abilities without reaching for the keyboard, and the DeathAdder only has 6.

Which has better battery life?

The Aerox 9, rated up to 180 hours. Razer does not publish a battery figure for the DeathAdder V4 Pro.

Is the DeathAdder worth the extra $30?

Yes if you play competitive shooters and value low weight and high polling. No if you need many buttons or long battery life.

Does either work with Bluetooth?

Only the Aerox 9 has Bluetooth. The DeathAdder V4 Pro uses Razer HyperSpeed wireless or a wired connection.

Which is better for smaller hands?

The DeathAdder V4 Pro. The Aerox 9 is listed as not suitable for smaller hands and is right-handed only.

Razer DeathAdder V4 Pro vs SteelSeries Aerox 9 Wireless

Buy the DeathAdder V4 Pro if you play fast shooters and want the lightest, most responsive mouse here. Buy the Aerox 9 if you play MMOs or MOBAs and want 18 programmable buttons and long battery life. The DeathAdder is $169.99 at Best Buy as of November 8, 2026, and the Aerox 9 is $139.99 at Best Buy the same day. The Aerox 9 has been as low as $136.99 since November 5, so the gap is about $30.

Today the SteelSeries Aerox 9 Wireless costs $30.00 less at its best price.

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