The Razer Viper V4 Pro meets
the Logitech G305 Lightspeed
PC Gamer's best gaming mouse of 2026, with a sensor RTINGS ranks among the most accurate it has measured. We tested it head-to-head against the Logitech G305 Lightspeed across 6 key dimensions.
Razer Viper V4 Pro
“PC Gamer's best gaming mouse of 2026, with a sensor RTINGS ranks among the most accurate it has measured”
Logitech G305 Lightspeed
“RTINGS' best budget gaming mouse and Wirecutter's budget pick, with up to 250 hours on one AA battery”
Head-to-Head Breakdown
Strengths & Weaknesses
Razer Viper V4 Pro
- PC Gamer's top gaming mouse since April 2026, praised for near-flawless build quality
- RTINGS rates its Focus Pro 50K Gen-3 sensor among the most accurate and consistent it has tested
- Up to 180 hours per charge at 1000 Hz, double the Superstrike's 90
- PC Gamer, RTINGS and Tom's Guide all found the optical clicks very loud
- No adjustable actuation, which RTINGS names as the Superstrike's edge
- IGN found Razer Synapse annoying and the 8K dongle bulky
Logitech G305 Lightspeed
- RTINGS' best budget gaming mouse, with excellent click latency and consistent tracking
- Wirecutter's budget pick, and RTINGS says its shape suits nearly every hand size and grip
- Up to 250 hours on a single AA battery, so there is no charging schedule to manage
- About 99 g with the battery, twice the weight of the Viper V4 Pro
- Wirecutter warns the mechanical switches can start to double-click
- Tops out at 1000 Hz polling and has no wired mode or Bluetooth
The Verdict
Our Bottom Line
PC Gamer moved the Razer Viper V4 Pro to the top of its list in April 2026 and called it the best gaming mouse on the market, with near-flawless build quality. RTINGS backs that up with lab numbers. It measured exceptional click latency, incredible sensor latency and 8000 Hz polling over both cable and wireless, and it rates the Focus Pro 50K Gen-3 as one of the most accurate and consistent sensors it has ever tested.
Razer Viper V4 Pro
PC Gamer moved the Razer Viper V4 Pro to the top of its list in April 2026 and called it the best gaming mouse on the market, with near-flawless build quality. RTINGS backs that up with lab numbers. It measured exceptional click latency, incredible sensor latency and 8000 Hz polling over both cable and wireless, and it rates the Focus Pro 50K Gen-3 as one of the most accurate and consistent sensors it has ever tested.
- Competitive FPS players who want one of the most accurate sensors RTINGS has measured
- Claw and fingertip grippers with small to medium hands
- Anyone who hates charging, with up to 180 hours at 1000 Hz
- Players moving up from a Viper V3 Pro or Superlight 2
- Buyers who want a fully tested flagship while Logitech's X3 awaits reviews
Logitech G305 Lightspeed
RTINGS still names the Logitech G305 Lightspeed its best budget gaming mouse in 2026, eight years after launch. Its lab measured excellent click latency and consistent sensor performance, and it says the compact, egg-shaped body suits nearly every hand size and grip. Wirecutter's panel made it the budget pick too, calling it accurate and responsive.
- Casual and mid-level players who want wireless without flagship prices
- Anyone who would rather swap an AA battery than charge a mouse
- Players of nearly any hand size, thanks to the shape RTINGS praises
- Students and first-time PC gamers
- People who want a spare or travel mouse